Module Axis Attributes
Module Axis attributes are used to configure common components of a CIP Motion device, for example the Bus Converter, Bus Regulator, and so on, that apply to all axis instances of the device. If these Module Axis attributes are included in the CIP Motion Control Axis Object implementation, the attribute values are the same for all axis instances associated with the device. This is generally enforced by configuration software.
If the value for a given Module Configuration attribute is not the same for each axis instance of the device, the Module Configuration attribute value for instance 1 determines the configuration of the device component.
Device Power Structure Axis ID
Usage | Access | T | Data Type | Default | Min | Max | Semantics of Values |
|---|---|---|---|---|---|---|---|
Optional - D | Set | DINT[8] | [] = 0 | - | - | Array of power structure IDs used to verify if the user selected power structure for each axis instance of a multi-axis drive matches that of the drive's actual power structure. [ Axis 1 ID, Axis 2 ID, Axis 3 ID, Axis 4 ID, Axis 5 ID, Axis 6 ID, Axis 7 ID, Axis 8 ID ] |
The element values of this array represent an ID assigned by the drive vendor that identifies the power structure associated to a given axis instance. This allows different power structures to be applied to specific axis instances of a multi-axis drive. By contrast, if power structure hardware is the same for all axis instances of the drive (excluding master feedback axes) the power structure can be identified by simply using the Drive Power Structure Class ID attribute. For multi-axis drives, the Drive Power Structure Axis ID can be included as part of the data segment in the CIP Motion connection’s Forward Open service to confirm that the power structure for a given axis instance matches the configuration in the controller. The indexed elements of this array correspond to axis instances 1 thru 8. Individual elements of this attribute are only applicable to axis instances whose associated Inverter Support bit is set. Array elements that are not applicable are set to 0. Axis instances with power structures that are not configured are set to 0, indicating to the drive that the Drive Power Structure Axis ID for these axis instances do not need to be checked
PWM Frequency
Usage | Access | T | Data Type | Default | Min | Max | Semantics of Values |
|---|---|---|---|---|---|---|---|
Optional - D | Set | UINT[8] | [] = 0 | [] = 0 | [] = 2 16 | Hertz [ Axis 1 PWM Freq, Axis 2 PWM Freq, Axis 3 PWM Freq, Axis 4 PWM Freq, Axis 5 PWM Freq, Axis 6 PWM Freq, Axis 7 PWM Freq, Axis 8 PWM Freq ] |
This 8-element array sets the carrier frequency for the Pulse Width Modulation output to the motor. Drive derating is required at higher PWM frequencies due to switching losses. Current loop update time is tied directly to the PWM frequency so loop performance generally increases with increasing PWM rate. Note that each drive instance in a multi-axis drive module can have an independently configured PWM frequency. The indexed elements of this array correspond to axis instances 1 thru 8. Individual elements of this attribute are only applicable to axis instances whose associated Inverter Support bit is set. Array elements that are not applicable or not configured are set to 0.
Bus Configuration
Usage | Access | T | Data Type | Default | Min | Max | Semantics of Values |
|---|---|---|---|---|---|---|---|
Optional - XBD | Set | USINT[8] | 0 | - | - | Enumeration: 0 = Standalone 1 = Shared AC/DC 2 = Shared DC 3 = Shared DC - Non CIP Converter 4 = Shared DC/DC 5 - 255 = Reserved |
This 8-element array of enumerated selections specifies how the DC Bus is going to be used by the associated axis instances of the device. Configure up to 8 axis instances using the array elements of this attribute. The axis instances start with 1 and end with 8.
- Standalone specifies DC Bus power supplied by the converter section of this axis instance applies only to the inverter's power structure of this axis. The axis instance does not require participating in a bus sharing group.
- Shared AC/DC specifies that the converter associated with this CIP Motion device axis instance is to supply and share DC Bus power with other axis instances and with other drives. This may result in de-rating of the converter's continuous current rating when there are multiple Shared AC/DC converter devices paralleled in a bus sharing group. Shared AC/DC axes generally participate in a bus sharing group.
- Shared DC specifies the drive axis instance is sharing DC bus power. Another Shared AC/DC or Shared DC/DC CIP Motion drive, or external non-CIP Converter generates the DC bus power. Shared DC axes typically participate in a bus sharing group.
- Shared DC - Non CIP Converter specifies that this drive axis instance receives DC bus power generated by an external AC/DC converter that is not CIP Motion compliant and distributing its DC bus power to other CIP Motion drives. A drive configured for "Shared DC - Non CIP Converter" is responsible for communicating the state of the external converter to the control system as if the external converter were integrated with the drive. Specifically, this communication includes the Bus Up and DC Bus Unload status bits reflecting the current state of associated external converter. Shared DC - Non CIP Converter axes generally participate in a bus sharing group.
- Shared DC/DC specifies that the converter associated with this CIP Motion device supplies and shares DC bus power with other Shared DC devices. DC/DC converters also converts input power from a primary DC bus power generally supplied by a Shared AC/DC converter to a secondary DC Bus output voltage level supplying one or more Shared DC drives. It may also distribute primary DC bus power from a Shared AC/DC converter to multiple Shared DC drives on a secondary DC bus without conversion. A Shared DC/DC converter has a unique capability in that it can be both a bus master for a bus group and a bus slave in a different bus group. Shared DC/DC axes generally participate in a bus sharing group.
Bus Voltage Select
Usage | Access | T | Data Type | Default | Min | Max | Semantics of Values |
|---|---|---|---|---|---|---|---|
Optional - BD | Set | USINT | 0 | - | - | Enumeration: 0 = High (115V, 230V, 460V, 690V) 1 = Low (100V, 200V, 400V, 600V) 2-255 = (reserved) |
This value indicates the expected bus voltage level of the drive application. High bus voltage selection is usually associated with drive running on the North American power grid, when operating in Europe a Low Bus Voltage selection would be appropriate. This parameter can be used to compensate for these different bus voltage levels in the current loop.
Bus Regulator Action
Usage | Access | T | Data Type | Default | Min | Max | Semantics of Values |
|---|---|---|---|---|---|---|---|
Optional - XBD | Set | USINT[8] | []=1 | - | - | Enumeration: 0 = Disabled O) 1 = Shunt Regulator (O) 2-127 = (reserved) 128-255 = (vendor specific) 128 = Adj. Frequency (O/IM) 129 = Both – Shunt first (O/IM) 130 = Both – Freq first (O/IM) 131 = Bus Follower (O) |
This 8-element array controls the method of operation of the DC Bus Regulator that addresses the regenerative over-voltage conditions that can occur when decelerating a motor associated with a given axis instance.
If Disabled, no regulation is applied to the DC Bus level by this device to control regenerative energy sourced by the motor.
When Shunt Regulator is selected the associated shunt regulation hardware is applied to the DC Bus to dissipate regenerative energy via an internal or external resistor.
When controlling Induction Motors, additional bus regulation methods are available that don’t require a shunt regulator. When Adjust Frequency is selected, the output frequency of the device is controlled relative to the speed of the motor to control the amount of regenerative energy pumped into the DC Bus. Different sequential application of shunt regulation and frequency control can be applied to motor.
When Bus Follower is selected, the DC Bus is generated by an external converter rather than an integral converter. No bus regulation is applied to the DC Bus level and the drive does not generate an exception if the DC Bus is still active when the DC Bus contactor of the integrated converter is open. In this context, the integral converter is not connected to AC power.
Note that each drive instance in a multi-axis drive module can have an independently configured Bus Regulator Action. The indexed elements of this array correspond to axis instances 1 thru 8. Array elements that are not applicable or not configured are set to 0.
Regenerative Power Limit
Usage | Access | T | Data Type | Default | Min | Max | Semantics of Values |
|---|---|---|---|---|---|---|---|
Optional - XD | Set | REAL[8] | []= -100 | []=-  | []=0 | % Motor Rated |
This 8-element array limits the amount of power allowed to transfer between the motor and the DC Bus during regenerative braking of the motor load for a given axis instance. Since this is regenerative power, the value of the limit is negative.
Note that each drive instance in a multiaxis drive module can have an independently configured Regenerative Power Limit. The indexed elements of this array correspond to axis instances 1 thru 8. Individual elements of this attribute are only applicable to axis instances whose associated Inverter Support bit is set. Array elements that are not applicable or not configured are set to 0.
Shunt Regulator Resistor Type
Usage | Access | T | Data Type | Default | Min | Max | Semantics of Values |
|---|---|---|---|---|---|---|---|
Optional - NBD | Set | USINT | 0 | - | - | Enumeration: 0 = Internal 1 = External 2-255 = (reserved) |
This attribute defines whether an Internal or External Shunt resistor is used.
External Shunt Regulator ID
Usage | Access | T | Data Type | Default | Min | Max | Semantics of Values |
|---|---|---|---|---|---|---|---|
Optional - NBD | Set | INT | -1 | -1 | 32767 | -1 = None 0 = Custom 1-32767 = Shunt Regulator ID |
Rockwell specific identifier for the External Shunt Regulator. A value of 0 indicates use of a custom shunt regulator that requires user configuration.
External Shunt Power
Usage | Access | T | Data Type | Default | Min | Max | Semantics of Values |
|---|---|---|---|---|---|---|---|
Optional - NBD | Set | REAL | 0.20 | 0 | | Kilowatts |
Rockwell specific identifier for the External Shunt Regulator. A value of 0 indicates use of a custom shunt regulator that requires user configuration.
External Shunt Pulse Power
Usage | Access | T | Data Type | Default | Min | Max | Semantics of Values |
|---|---|---|---|---|---|---|---|
Optional - NBD | Set | REAL | 0 | 0 | | Kilowatts |
This attribute is used when an external shunt resistor has been configured. This attribute value specifies the power that can be delivered to the external shunt resistor for one second, without exceeding the rated element temperature.
There are approximations to help determine this attribute if this information is not available from your vendor.
First approximation method, calculate 'Shunt Pulse Power' (Kilowatts) = 75,000 * lbs, where lbs is the weight of the resistor wire element (not the weight of the resistor).
Another method is that the thermal time constant = 'Shunt Pulse Power' (Kilowatts) / 'Shunt Power' (Kilowatts) sometimes referred to as thermal mass.- the time for the resistor element to reach 63% of rated temperature with applied rated Kilowatts.
A third method for determining this value: The pulse Kilowatts for 1 second is twice the watt rating of a 2 second pulse. In other words, the watt*sec rating is a constant if the pulse duration is short compared to the thermal time constant of the resistor ad is a function of the element mass.
External Bus Capacitance
Usage | Access | T | Data Type | Default | Min | Max | Semantics of Values |
|---|---|---|---|---|---|---|---|
Optional - NBD | Set | REAL | 0 | 0 | | Microfarads (  F) |
This attribute represents the external DC Bus capacitance when the associated converter or drive is acting as a Common Bus Leader Master, supplying DC Bus power to one or more Common Bus Followers. This attribute may also be applicable to standalone drives that allow connection to an external capacitor. This attribute is not applicable when the Bus Regulator Action is set to Common Bus Follower. The attribute is applicable when the Bus Regulator Action is set to Disable or Shunt Regulator.
External Shunt Resistance
Usage | Access | T | Data Type | Default | Min | Max | Semantics of Values |
|---|---|---|---|---|---|---|---|
Optional - BD | Set | REAL | 0 | 0 | | Ohms |
This attribute represents the resistance of the External Shunt Regulator resistor.
Duty Select
Usage | Access | T | Data Type | Default | Min | Max | Semantics of Values |
|---|---|---|---|---|---|---|---|
Optional - XBD | Set | USINT[8] | [] = 0 | - | - | Enumeration: 0 = Normal 1 = Heavy 2 = Light (O) 3-255 = (reserved) [ Axis 1 Duty Select, Axis 2 Duty Select, Axis 3 Duty Select, Axis 4 Duty Select, Axis 5 Duty Select, Axis 6 Duty Select, Axis 7 Duty Select, Axis 8 Duty Select ] |
This 8-element array indicates the duty level of the drive application and balances the continuous and intermittent overload capacity of the drive and motor accordingly. Since this value is tied to a specific drive inverter and motor, the setting can vary for each axis instance supported by a multi-axis drive module. The indexed elements of this array correspond to axis instances 1 thru 8. Array elements that are not applicable or configured are set to 0.
Normal Duty provides nominal continuous rating at the expense of lower overload capacity.
Heavy Duty provides highest overload capacity at the expense of a lower continuous rating.
Light Duty provides highest continuous rating at the expense of lower overload capacity.
Specification for the continuous and overload ratings under Normal, Heavy, and Light Duty are left to the discretion of the drive vendor.
Duty Select is used to determine the level of thermal protection for the motor and the inverter during drive operation.
Primary Bus Sharing Group
Usage | Access | T | Data Type | Default | Min | Max | Semantics of Values |
|---|---|---|---|---|---|---|---|
Optional - BD | Set | USINT | 0 | - | - | Enumeration: 0 = Standalone 1 = Bus Group 1 2 = Bus Group 2 3 = Bus Group 3 4 = Bus Group 4 5 = Bus Group 5 6 = Bus Group 6 7 = Bus Group 7 8 = Bus Group 8 9 = Bus Group 9 10 = Bus Group 10 11 = Bus Group 11 12 = Bus Group 12 13 = Bus Group 13 14 = Bus Group 14 15 = Bus Group 15 16 = Bus Group 16 17 = Bus Group 17 18 = Bus Group 18 19 = Bus Group 19 20 = Bus Group 20 21 = Bus Group 21 22 = Bus Group 22 23 = Bus Group 23 24 = Bus Group 24 25 = Bus Group 25 |
This enumerated selection indicates the primary Bus Sharing Group the drive is assigned to. Physically, a Bus Sharing Group represents a collection of drives that are wired together in a Shared AC/DC or Shared DC Bus Configuration. Assignment to a Bus Sharing Group limits the DC Bus Unload action initiated by a converter in the group, and the resultant Bus Power Sharing exceptions, to Shared AC/DC and Shared DC drives in the converter's assigned Bus Group. Drives assigned to other Bus Groups are, therefore, unimpacted.
If the drive's Bus Configuration indicates Standalone operation, the only valid enumeration for the Bus Sharing Group is Standalone.
If the drive's Bus Configuration indicates Shared AC/DC or Shared DC operation, the drive should be assigned to a specific Bus Group. The Standalone enumeration in this case is invalid.
If the drive supports the optional Bus Configuration attribute, the Bus Sharing Group is required in the drive profile implementation.
Duty Select
Usage | Access | T | Data Type | Default | Min | Max | Semantics of Values |
|---|---|---|---|---|---|---|---|
Optional - BD | Set | USINT[8] | [] = 0 | - | - | Enumeration: 0 = Normal 1 = Heavy 2 = Light (O) 3-255 = (reserved) [ Axis 1 Duty Select, Axis 2 Duty Select, Axis 3 Duty Select, Axis 4 Duty Select, Axis 5 Duty Select, Axis 6 Duty Select, Axis 7 Duty Select, Axis 8 Duty Select ] |
This 8-element array indicates the duty level of the drive application and balances the continuous and intermittent overload capacity of the drive and motor accordingly. Since this value is tied to a specific drive inverter and motor, the setting can vary for each axis instance supported by a multi-axis drive module. The indexed elements of this array correspond to axis instances 1 thru 8. Array elements that are not applicable or configured are set to 0.
- "Normal" Duty provides nominal continuous rating at the expense of lower overload capacity.
- "Heavy" Duty provides highest overload capacity at the expense of a lower continuous rating.
- "Light" Duty provides highest continuous rating at the expense of lower overload capacity.
Specification for the continuous and overload ratings under Normal, Heavy, and Light Duty are left to the discretion of the drive vendor.
Duty Select is used to determine the level of thermal protection for the motor and the inverter during drive operation.
Converter AC Input Phasing
Usage | Access | T | Data Type | Default | Min | Max | Semantics of Values |
|---|---|---|---|---|---|---|---|
Optional - NBD | Set | USINT | 0 | - | - | Enumeration: 0 = Three-Phase (R) 1 = Single-Phase (O) 2-255 = (reserved) |
This attribute indicates whether the converter input power to AC line is Single-Phase or Three-Phase.
Converter AC Input Voltage
Usage | Access | T | Data Type | Default | Min | Max | Semantics of Values |
|---|---|---|---|---|---|---|---|
Optional - NBD | Set | UINT | 230 | 0 | | Volts (RMS) |
This value configures the drive for the intended AC line voltage applied to the converter.
Demonstration Mode Select
Usage | Access | T | Data Type | Default | Min | Max | Semantics of Values |
|---|---|---|---|---|---|---|---|
Optional - BD | Set | USINT | 0 | 0 | 1 | Enumeration: 0 = Inactive 1 = Active 2-255 = (reserved) |
Activating Demonstration Mode, or 'Demo Mode', allows the associated converter and inverter power structures to operate using Single-Phase, 110/120 VAC, 50/60Hz, AC line input. Converter and inverter performance is significantly limited as compared to standard operation with Demo Mode inactive. All converter and inverter modules in a shared DC bus configuration should have the same Demo Mode setting to avoid faulting.
The purpose of Demo Mode is to allow demonstration of products in non-industrial environments. It is not intended for use in real motion applications.
Mover Axis Assignment Sequence
Usage | Access | T | Data Type | Default | Min | Max | Semantics of Values |
|---|---|---|---|---|---|---|---|
Optional - X (Copied to Movers) | Set | USINT | 0 | - | - | Enumeration: 0 = Decreasing Position (O) 1 = Increasing Position (O) 2 = Decreasing Position from Reference Mover (O) 3 = Increasing Position from Reference Mover (O) 4-127 = (reserved) 128-255 = (vendor specific) |
During track initialization, this attribute determines how movers on the track are assigned to CIP Motion axis instances. Once the mover sequence is established on the track the movers are then assigned to the axis instances of track sections that are themselves arranged in a sequence that comprise the track, starting with Section 1.
The configured Mover Axis Assignment Sequence must be the same for all track sections and is sent only to the section axis instance of the track section device. This values is also stored in a private variable for each of the mover axis instances of the controller that are associated with this section module. This is necessary to support the APR functionality of the mover axis instances.
Decreasing Position instructs the track sections to assign movers on the track to axis instances in a sequence starting with the mover with the highest position value as the first mover followed by movers with decreasing position values. The mover types on the track have no effect on the sequencing.
Increasing Position instructs the track sections to assign movers on the track to axis instances in a sequence starting with the mover with the lowest position value as the first mover followed by movers with increasing position values. The mover types on the track have no effect on the sequencing.
Decreasing Position from Reference Mover instructs the track sections to assign movers on the track to axis instances in a sequence starting with the mover electronically identified as the Reference Mover followed by movers in the direction of decreasing position values relative to the Reference Mover.
Increasing Position from Mover 1 instructs the track sections to assign movers on the track to axis instances in a sequence starting with the mover electronically identified as the Reference Mover followed by movers in the direction of increasing position values relative to the Reference Mover.
Converter Overtemperature User Limit
Usage | Access | T | Data Type | Default | Min | Max | Semantics of Values |
|---|---|---|---|---|---|---|---|
Optional - NBD | Set | REAL | 0 | 0 | | Degrees Celsius (°C) |
This attribute sets the user limit for the Converter Overtemperature UL exception.
Converter Thermal Overload User Limit
Usage | Access | T | Data Type | Default | Min | Max | Semantics of Values |
|---|---|---|---|---|---|---|---|
Optional - NBD | Set | REAL | 100 | 0 | | % Converter Rated |
This attribute sets the user limit for the Converter Thermal Overload UL exception.
Converter Ground Current User Limit
Usage | Access | T | Data Type | Default | Min | Max | Semantics of Values |
|---|---|---|---|---|---|---|---|
Optional - NBD | Set | REAL | 100 | 0 | | % Factory Limit |
This attribute sets the user limit for the Converter Ground Current UL exception.
Bus Regulator Overtemperature User Limit
Usage | Access | T | Data Type | Default | Min | Max | Semantics of Values |
|---|---|---|---|---|---|---|---|
Optional - BD | Set | REAL | 0 | 0 | | Degrees Celsius (°C) |
This attribute sets the user limit for the Bus Regulator Overtemperature UL exception.
Bus Regulator Thermal Overload User Limit
Usage | Access | T | Data Type | Default | Min | Max | Semantics of Values |
|---|---|---|---|---|---|---|---|
Optional - BD | Set | REAL | 100 | 0 | | % Regulator Rated |
This attribute sets the user limit for the Bus Regulator Thermal UL exception.
Bus Overvoltage User Limit
Usage | Access | T | Data Type | Default | Min | Max | Semantics of Values |
|---|---|---|---|---|---|---|---|
Optional - BD | Set | REAL | 140 | 0 | | % Nominal Bus Voltage |
This attribute sets the user limit for the Bus Overvoltage UL exception. Unlike the corresponding Factory Limit, which is specified in Volts, the User Limit is based on the percentage of Nominal Bus Voltage during operation.
Bus Undervoltage User Limit
Usage | Access | T | Data Type | Default | Min | Max | Semantics of Values |
|---|---|---|---|---|---|---|---|
Optional - BD | Set | REAL | 0 | 0 | 100 | % Nominal Bus Voltage |
This attribute sets the user limit for the Bus Undervoltage UL exception. Unlike the corresponding Factory Limit, which is specified in Volts, the User Limit is based on the percentage of Nominal Bus Voltage during operation
Control Module Overtemperature User Limit
Usage | Access | T | Data Type | Default | Min | Max | Semantics of Values |
|---|---|---|---|---|---|---|---|
Optional - All | Set | REAL | 0 | 0 | | Degrees Celsius (°C) |
This attribute sets the user limit for the Control Module Overtemperature UL exception.
Converter Pre-Charge Overload User Limit
Usage | Access | T | Data Type | Default | Min | Max | Semantics of Values |
|---|---|---|---|---|---|---|---|
Optional - NBD | Set | REAL | 100 | 0 | | % Converter Rated |
This attribute sets the user limit for the Converter Pre-Charge Overload UL exception.
Digital Output Configuration
Usage | Access | T | Data Type | Default | Min | Max | Semantics of Values |
|---|---|---|---|---|---|---|---|
Optional - All | Set | USINT [8][8] | []=0 | - | - | Enumeration: 0 = Unassigned 1 = Contactor Enable 2 = Mechanical Brake 3 = Resistive Brake 4 = Regenerative Power 5 = Converter Power 6-255 = (reserved) [ Axis 1 Output Config[8], Axis 2 Output Config[8], Axis 3 Output Config[8], Axis 4 Output Config[8], Axis 5 Output Config[8], Axis 6 Output Config[8], Axis 7 Output Config[8], Axis 8 Output Config[8]] |
This attribute is a 2 dimensional array of enumerated values that map configurable digital output to specific functions for each drive axis. Each of the 8 possible axis instances may support up to 8 configurable digital outputs. The Logix controller distributes the Digital Output Configuration array elements to each axis instance of the device. The Digital Output Configuration attribute in the device is defined as a 32 element array of which only the first 8 elements are supported by this 8x8 Digital Output Configuration array definition. The remaining elements of the 32 element array are set to 0.
Digital Input Configuration
Usage | Access | T | Data Type | Default | Min | Max | Semantics of Values |
|---|---|---|---|---|---|---|---|
Optional - All | Set | USINT [8][8] | []=0 | - | - | Enumeration: 0 = Unassigned 1 = Enable 2 = Home 3 = Registration 1 4 = Registration 2 5 = Positive Overtravel 6 = Negative Overtravel 7 = Regenerative Power OK 8 = Bus Capacitor OK 9 = Shunt Thermal Switch OK 10 = Home & Registration 1 11 = Motor Thermostat OK 12 = Pre-Charge OK 13 = AC Line Contactor OK 14 = Bus Conditioner OK 15 = Converter OK 16-255 = (reserved) [ Axis 1 Input Config[8], Axis 2 Input Config[8], Axis 3 Input Config[8], Axis 4 Input Config[8], Axis 5 Input Config[8], Axis 6 Input Config[8], Axis 7 Input Config[8], Axis 8 Input Config[8]] |
This attribute is a 2 dimensional array of enumerated values that map configurable digital inputs to specific functions for each drive axis. Each of the 8 possible axis instances may support up to 8 configurable digital inputs. The Logix controller distributes the Digital Input Configuration array elements to each axis instance of the device. The Digital Input Configuration attribute in the device is defined as a 32 element array of which only the first 8 elements are supported by this 8x8 Digital Input Configuration array definition. The remaining elements of the 32 element array are set to 0.
Functions that are not mapped to a digital input are not checked by the drive, and do not generate associated exceptions or events. Associated exception actions in this case are accepted by the device and ignored.
DC Bus Output Voltage Set Point n
Usage | Access | T | Data Type | Default | Min | Max | Semantics of Values |
Optional - BD | Set | REAL | 0 | 0 | | Volts |
This attribute sets the reference voltage used to actively regulate the DC Bus Output Voltage output of Bus Converter power structure instance n when in the Running state.
Power structure instance attributes are only applicable when supporting multiple converter power structure generated DC Bus outputs per axis object instance
Bus Voltage Set Point n
Usage | Access | T | Data Type | Default | Min | Max | Semantics of Values |
Optional - BD | Set | REAL | 0 | 0 | | Volts |
This attribute sets the reference voltage used to actively regulate the Bus Voltage output of Bus Converter power structure instance n when in the Running state.
Power structure instance attributes are only applicable when supporting multiple converter power structure generated DC Bus outputs per axis object instance.
Bus Output Overvoltage User Limit n
Usage | Access | T | Data Type | Default | Min | Max | Semantics of Values |
Optional - BD | Set | REAL | 0 | 0 | | % DC Bus Voltage Set Point n |
This attribute sets the User Limit for the Bus Overvoltage UL exception associated with the DC Bus output of DC converter power structure instance n when supporting multiple converter power structure generated DC Bus outputs per axis object instance. Unlike the corresponding Factory Limit, which is specified in Volts, the User Limit is based on percent of the corresponding DC Bus Voltage Set Point n during operation.
This attribute is only applicable to DC Converter Types.
Bus Output Undervoltage User Limit n
Usage | Access | T | Data Type | Default | Min | Max | Semantics of Values |
Optional - BD | Set | REAL | 0 | 0 | 100 | % Bus Voltage Set Point n |
This attribute sets the User Limit for the Bus Undervoltage UL exception associated with the DC Bus output of DC converter power structure instance n when supporting multiple converter power structure generated DC Bus outputs per axis object instance. Unlike the corresponding Factory Limit, which is specified in Volts, the User Limit is based on percent of the corresponding Bus Voltage Set Point n during operation.
This attribute is only applicable to DC Converter Types.
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