SAF OP-STOP DCI User Manual
Page 13
OP-STOP DC INJECTION BRAKE
Page 8
3.3 ADJUSTMENTS
3.3.1 POTENTIOMETERS
POT
NAME
RANGE DEFAULT
SETTING
DESCRIPTION
RV1 BRAKING
TIME
1-60 sec
30%
Adjust the braking time
CW rotation increases the time
RV2
TORQUE
100-300%
50%
Adjust DC current
CW increases the braking torque
(current)
3.3.2 1LINK SELECTION
LINK
NAME
POSITION DESCRIPTION
JP1
VOLTAGE
LEVEL
LO
(Normal)
Braking action starts when motor starter has opened
and the motor terminal voltage has decreased to
30% of the line voltage.
HI
Braking action starts when motor starter has opened
and the motor terminal voltage has decreased to
80% of the line voltage. See important notes below.
HI setting is only used when the stopping time is critical and must be around 1-2 seconds. For this
application 300% DC current is not adequate. Consult factory before using this jumper position.
When the OP-STOP is set on the HI level a current surge could occur due to the motor CEMF and
the free wheeling action of the power circuit.
3.3.3 PUSHBUTTON
PUSHBUTTON
NAME
DESCRIPTION
SW1
RESET
Reset IOC fault trip