Parker 591C - Page 368

590 Series DC Digital Drive Programming
D-119
Functional Description
Stop Hierarchy
Coast Stop - Terminal B9
• Disables the drive and opens the contactor via the pilot output
Enable - Terminal C5
• Suspends and resets the Control Loops
Program Stop - Terminal B8
• Independent ramp time
• Stop Timer
• Independent Current Limit that may be higher than normal Current Limit
Normal Run/Stop - Terminal C3
• Independent ramp time
• Contactor Delay
91
26
27
PROG STOP I LIM
PROG STOP TIME
STOP TIME
TAG# PARAMETER
100.00%
0.1 SECS
10.0 SECS
DEFAULT
SETTING
STOP RATES
217
STOP LIMIT
60.0 SECS
216
PROG STOP LIMIT
60.0 SECS
29
STOP ZERO SPEED
2.00 %
302
CONTACTOR DELAY
1.0 SECS
89
RAMP TO ZERO
RAMP TO ZERO
t
SPEED
SETPOINT
TO/FROM SPEED LOOP
SPEED
DEMAND
TO CURRENT LOOP
CURRENT LIMIT SWITCH
t
t
PROGRAM
STOP
SPEED
FEEDBACK
STOP (RUN)
PROGRAM STOP IS TRUE
W
HEN TERMINAL B8 LO
W
(STATUS LED OFF)
TO COAST
STOP LOGIC
TO DRIVE ENABLE
The Drive’s reaction to commands is defined by a state
machine. This determines which commands provide the
demanded action, and in which sequence. Consequently,
COAST STOP and PROGRAM STOP must be FALSE,
i.e. the drive is not in Coast or Program mode, before a
Run signal is applied otherwise the controller assumes a
Stop mode and remains disabled. Refer to Chapter 4:
“Operating the Drive” - Stopping Methods for
descriptions of Coast Stop and Program Stop.