Parker ac890 - Page 208

Operating the Drive
8-9
890CS Common Bus Supply - Frames B & D; 890CD Common Bus Drive and 890SD Standalone Drive - Frames B, C & D
11
4
SPEED DEMAND
REMOTE SETPOINT
Speed 0%
RUN input
Ramp to zero speed at
DECEL TIME
Ramp SPEED TRIM to
zero at STOP TIME
SPEED TRIM
POWER
CIRCUIT
DISABLED
STOP DELAY
Figure 8.4 Ramp to Stop with a Remote Reference
SPEED DEMAND
REMOTE SETPOINT
Speed 0%
RUN input
Ramp SPEED DEMAND
to zero at STOP TIME
SPEED TRIM
POWER
CIRCUIT
DISABLED
STOP DELAY
Figure 8.5 Remote to Stop with a Remote Reference: DECEL TIME = 0.0s
A special case exists when the DECEL TIME is set to 0.0 seconds, or when the HOLD parameter is TRUE.
In both these situations the SPEED DEMAND will ramp down to zero at the STOP TIME.