D-130 Programming
DC590+ Series DC Digital Drive
STOP RATES
These parameters are used by a regenerative drive when stopping with Normal Stop or Program
Stop.
The stopping methods of the drive are described in more detail in Chapter 4: “Operating the Drive” -
Starting and Stopping Methods.
The internal inputs to this block are SPEED SETPOINT and SPEED FEEDBACK from the SPEED
LOOP function block, the Run signal from terminal C3, and PROGRAM STOP from terminal B8.
The internal outputs are SPEED DEMAND to the speed loop, PROG STOP I LIM to the current loop, and
signals to the coast stop and drive enable logic.
Normal Stop
A Normal Stop occurs when the Run signal is removed from terminal C3. It ramps the speed demand to zero at a rate set by STOP TIME.
• Non-regenerative drives can stop no faster than the coast stop rate.
• Regenerative drives use STOP TIME to set the duration of the stop.
After the stop, the contactor de-energises and the drive disables.
The STOP LIMIT timer starts when C3 goes to 0V (the Run signal is removed). If the drive speed has not reached STOP ZERO SPEED within the
STOP LIMIT time, the contactor de-energises and the drive disables.
During Normal Stops, after the motor reaches zero speed, CONTACTOR DELAY delays the de-energising of the contactor. When STOP ZERO
SPEED is set above 0.25% and the CURRENT DECAY RATE is not zero, the drive disables during the contactor delay. Otherwise the drive disables
after the contactor delay. This is useful when using the Jog function to prevent multiple operations of the contactor. CONTACTOR DELAY is
overridden when terminal C5 (Enable Input) is at 0V.
Program Stop
PROGRAM STOP provides a controlled fast stop for regenerative drives. The stop time is set by PROG STOP TIME. This timer starts once terminal
B8 (Program Stop) goes to 0V. When the drive reaches STOP ZERO SPEED, the contactor de-energises and the drive disables. PROG STOP LIMIT
sets the maximum time the Program Stop can take before the contactor de-energises and the drive disables.
PROG STOP I LIM sets the current limit in the current loop during a Program Stop. Other current limits can override it.
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