Parker 590+ series - Normal Stop (C3); Starting and Stopping Methods

4-20 Operating the Drive
DC590+ 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 Ma
p
1
SETUP PARAMETERS
2
STOP RATES
MMI Menu Ma
p
1
SETUP PARAMETERS
2
STOP RATES
STOP TIME
MMI Menu Ma
p
1
SETUP PARAMETERS
2
CURRENT LOOP
MAIN CURR.LIMIT