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Programming 6-43MN792
Stop Rates
Sets the stop method parameters for the control. 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. Series 29 Non–regenerative drives
will stop no faster than the coast stop rate. Series 30 Regenerative drives use Stop Time to set the duration of
the stop. After the stop, the contactor de–energizes and the drive disables. The Stop Limit timer starts when C3
goes to zero volts. If the drive speed has not reached Stop Zero Speed within the Stop Limit time, the contactor
de–energizes and the drive disables.
During normal stops, Contactor Delay delays de–energizing the contactor after the motor reaches zero speed.
When Stop Zero Speed is set greater than 0.25%, the drive disables during the contactor delay. Below 0.25%,
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 C4 is at zero volts.
Program Stop provides a controlled fast stop using regenerative drives. The stop time is set by Program Stop
Time. The timer starts when terminal B8 goes to zero volts. When the drive reaches Stop Zero Speed, the
contactor de–energizes and the drive disables. Program Stop Limit sets the maximum time the program stop
can take before the contactor de–energizes and the drive disables.
Prog Stop I Lim sets the current limit (current loop) during a program stop. Other current limits can override it.
1 SETUP PARAMETERS
2 STOP RATES
Stop Time
Stop Limit
Contactor Delay
PROG Stop Time
PROG Stop Limit
PROG Stop I LIM
Stop Zero Speed
Tag# Parameter Factory Setting
[91] PROG Stop I Limit 100.00%
Speed Setpoint
from [62] Speed Loop
Speed Feedback
from [63] Speed Loop
Stop Rates
PROG Stop I Limit
To Current Loop
Speed
Demand
[89]
[27] Stop Time 10.0 Sec
[26] PROG Stop Time 0.1 Sec
[217] Stop Limit 60.0 Sec
[216] PROG Stop Limit 60.0 Sec
t
t
t
Drive
Start
[82]
[29] Stop Zero Speed 2.00%
[302] Contactor Delay 1.0 Sec
Program Stop is true when terminal
B8 is Low (Status LED Off).
Program
Stop
B8
To Coast
Stop Logic
Parameter Descriptions
Speed Demand (Read in Diagnostics Parameters)
Speed loop total setpoint after the ramp–to–zero block.
Range: xxx.xx %
Program Stop (Read in Diagnostics Parameters)
State of Program Stop (Terminal B8). When B8 is at 24V, then Program Stop is false and the
Program Stop front panel LED is also on.
Range: 0 : False
1 : True
Stop Time
Time to reach zero speed from 100% set speed in normal stop mode (C3 Off).
Range: 0.1 to 600.0
Seconds
Stop Limit
Delay time limit to allow normal stop action (regenerative breaking) to achieve zero speed before
drive quench and coast stop. The timer is triggered by Start command (C3) going low.
Range: 0.0 to 600.0
Seconds
Contactor Delay
This defines the time between the drive reaching Stop Zero Speed (Tag [29]) and the contactor
being opened. This is particularly useful during the jog cycle to prevent multiple operations of the
main contactor.
If Stop Zero Speed is ≥ 0.25%, the drive will be quenched during the contactor delay time. The
Contactor delay is overridden by Enable (C4).
Maintain zero speed during contactor delay.
If Stop Zero Speed is < 0.25%, the drive is not quenched until after the Contactor Delay time.
Range: 0.1 to 600.0
Seconds
PROG Stop Time
Time to reach zero speed from 100% set speed in program stop mode (B8 OFF).
Range: 0.1 to 600.0
Seconds
PROG Stop Limit
Delay time limit to allow program stop action (regenerative breaking) to achieve zero speed before
drive quench and coast stop. The timer is triggered by program stop command (B8) going low.
Range: 0.0 to 600.0
Seconds
PROG Stop I LIM
Main current limit level in program stop mode assuming current limit not overridden by I Profile or
Inverse Time limits.
Range:
Stop Zero Speed
Zero speed level in program stop and normal stop modes at which the contactor delay timer starts
timing out. At the end of this delay the contactor is de–energized.
Range: 0.00 to 100.00 %