CMPx.ARM

Description

Use this keyword to arm or disarm a Compare setpoint Setpoint is the target value that an automatic control system, for example PID controller, will aim to reach. The setpoint value will only be compared against the Compare source (CMPx.SOURCE) if that setpoint is armed. If they match, an output pulse will be generated.

An error will be generated if CMPx.SOURCE, CMPx.MODBOUND1, CMPx.MODBOUND2, CMPx.WIDTH, and CMPx.MODEN are not set prior to enabling CMPx.ARM. If CMPx.SETPOINT is not set prior to enabling CMPx.ARM, the compare will trigger at the last set value, or the default value of 0 if the drive has been power cycled.

When accessing this keyword through a fieldbus, the values are to be interpreted as a bitmask, with each bit corresponding to one of the Compare setpoints.

Example

The following example arms setpoint 3 for CMP1.

-->CMP1.ARM 3 1

General Information

Type	NV Parameter
Units	N/A
Range	Argument 1: 0 to 7 Argument 2: 0 (Disarm) or 1 (Arm)
Default Value	0 (Disarm)
Data Type	Argument 1: Integer Argument 2: Integer
Start Version	M_01-13-00-000

Hardware Supported

Compare functionality is supported on hardware revisions D, DB, DA, and higher depending on the drive type. Check the label on the side of the drive to ensure the AKD meets one of the following requirements.

AKD Type	Hardware Revision Supported
AKD	Revision D or higher
AKD PDMM	Revision DB or higher
AKD-T-IC "Integrated Circuits" Miniaturized electronic circuits (consisting mainly of semiconductor devices, as well as passive components) that have been manufactured in the surface of a thin substrate of semiconductor material	Revision DA or higher

Variants Supported

*In SynqNet SynqNet is a digital machine control network. Built on the 100BT physical layer, SynqNet provides a synchronous real-time connection between motion controllers, servo drives, stepper drives, I/O modules, and custom devices, a parameter may be available in the firmware but have no effect on the system. See SynqNet Supported Parameters.

Fieldbus A Fieldbus is an industrial network system for real-time distributed control (e.g. CAN or Profibus). It is a way of connecting instruments in a plant design	Index/Subindex		Object Start Version
EtherCAT ***EtherCAT is an open, high-performance Ethernet-based fieldbus system. The development goal of EtherCAT was to apply Ethernet to automation applications which require short data update times (also called cycle times) with low communication jitter (for synchronization purposes) and low hardware costs COE and CANopen	34C0h/1	CMP0.ARM	M_01-13-00-000
	34C1h/1	CMP1.ARM	M_01-13-00-000