Calibration and Start-Up
4-17
DC590+ DRV Series DC Digital Drive
Starting and Stopping Methods
Stopping Methods
•
If the Drive is “non-regenerative” (2-quad - 591+) it effectively coasts to a stop once the current demand reverses.
•
If the Drive is “regenerative” (4-quad - 590+) then it can stop faster because it uses energy from the load, i.e. reverse current is allowed to flow.
Normal Stop and Program Stop are only relevant for a “regenerative” controller.
The parameters STOP TIME and PROG STOP TIME have associated timers which initiate a Coast Stop after the timed
period.
The Coast Stop has direct control of the Run relay with no intervening electronics.
All associated parameters can be found in the STOP RATES menu.
Terminal Description
Function
Parameter
Priority
B9
Coast Stop
Motor coasts to rest
--
Overrides Program Stop and Normal Stop
B8
Program Stop
Motor decelerates at Program Stop rate PROG STOP TIME Overrides Normal Stop
C3 Start/Run
(Normal Stop)
Motor decelerates at Normal Stop rate STOP TIME
--
Normal Stop (C3)
This is achieved by removing 24V from Terminal C3.
The motor speed is brought to zero in a time defined by the STOP TIME parameter.
During Normal Stop, the current is limited by the MAIN CURR. LIMIT parameter
MMI Menu Map
1
SETUP PARAMETERS
2
STOP RATES
MMI Menu Map
1
SETUP PARAMETERS
2
STOP RATES
STOP
TIME
MMI Menu Map
1
SETUP PARAMETERS
2
CURRENT LOOP
MAIN
CURR.LIMIT
Summary of Contents for 590+ DRV
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Page 166: ...5 8 Control Loops DC590 DRV Series DC Digital Drive...
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