6-84
Programming Your Application
590+ Series DC Digital Converter
STOP RATES
Functional Description
Stop Hierarchy
Coast Stop - Terminal B9
x
Disables the drive and opens the contactor via the pilot output
Enable - Terminal C5
x
Suspends and resets the Control Loops
Program Stop - Terminal B8
x
Independent ramp time
x
Stop Timer
x
Independent Current Limit that may be higher than normal Current Limit
x
Independent zero speed
Normal Run/Stop - Terminal C3
x
Independent ramp time
x
Contactor Delay
Note:
The Converter’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 Converter” - Stopping
Methods for descriptions of Coast Stop and Program Stop.
Parameter
Tag
Range
CONTACTOR DELAY
302
0.1 to 600.0 s
This defines the time the contactor stays energised for after the STOP ZERO SPEED limit
is reached.
Maintain zero speed during contactor delay.
CURR DECAY RATE
594
0.00 to 200.00
This is the rate at which the current is quenched when the current loop is disabled.
PROG STOP TIME
26
0.1 to 600.0 s
Time to reach zero speed from 100% set speed in Program Stop mode (B8 = 0V).
PROG STOP LIMIT
216
0.0 to 600.0 s
The maximum time a Program Stop (regenerative breaking) can take before the contactor is
de-energised and the drive is disabled. The timer is triggered when terminal B8 = 0V.
PROG STOP I LIM
91
0.00 to 200.00 %
Main current limit level (assuming current limit not overridden by I Profile or Inverse Time
limits) when performing a Program Stop.
STOP ZERO SPEED
29
0.00 to 100.00 %
The threshold at which the CONTACTOR DELAY timer starts in Program Stop and
Normal Stop modes. See also CONTACTOR DELAY above.