Parker 890CD - The Trip Condition; Logic Stopping

Operating the Drive
890CS Common Bus Supply - Frames B & D; 890CD Common Bus Drive and 890SD Standalone Drive - Frames B, C & D Page 7-13
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The Trip Condition
When a trip condition is detected, a similar stopping method to NOT COAST STOP is used. The power
stack cannot be re-enabled until the trip condition has been cleared and successfully reset.
Refer to Chapter 10: “Trips and Fault Finding” for further details.
Logic Stopping
The drive can be stopped by setting the NOT STOP to FALSE for a short time, (>100 ms). The stop
sequence continues even if the NOT STOP signal goes inactive before the drive is stopped. Various
combinations of stop logic are shown below.
SPEED DEMAND
REMOTE SETPOINT
Speed 0%
RUN FORWARD
NOT STOP
REMOTE SETPOINT
RUN REVERSE
RUN FORWARD ignored
as already running
RUN FORWARD not
i
g
nored as now sto
pp
in
g
RUN FORWARD not
ignored as now stopping
Figure 7.9 Interaction between RUN FORWARD, RUN REVERSE and NOT STOP Parameters