Group 22
Quick Reference
ELECTRONICS
10
FWD
STAT
REV
PWR
CALIBRATE
SET POS
100%
SET POS
0%
SET DEM
100%
SET DEM
0%
DEMAND
POSITION
TORQUE
STALL
TEMP °F
FB OPEN
UVOLT
ACKNOWLEDGE
LOCAL PUSHBUTTON
INTERFACE / LEDs
OVERVIEW LEDs
There are four LEDs in the upper right corner
of the DCM-2 circuit board. These provide an
overview of DCM-2 status.
PWR
This LED is lit when power is applied to the
drive. After initial power up, this LED pulses
from bright to dim indicating the micro-
processor is operating.
STAT
This LED is lit when a system alarm occurs.
When the STAT LED is lit, typically a status
indication LED will be illuminate to further
explain the status.
REV
This LED is lit when the drive is instructed to
move in the reverse direction. The instructions
may come from a demand signal, a control
override input, the handswitch, HART, or serial
commands.
FWD
This LED is lit when the drive is instructed to
move in the forward direction. The instructions
may come from a demand signal, a control
override input, the handswitch, HART, or serial
commands.
STATUS INDICATION LEDs
The status indication LEDs are located on the
left side of the local pushbutton interface.
The applicable status indication LED(s) will
illuminate when the “STAT” LED is lit, to reveal
the condition(s) as described below. When more
than one status LED is required at one time, the
illuminated LEDs will cycle rather than illuminate
all at once.
Refer to the troubleshooting section of this
manual for corrective actions that will eliminate
system alarms, status indication LEDs from being
lit, and the STAT LED from being lit.
DEMAND
The demand signal is outside of the acceptable
range of values.
(Standard current range is 3.2 - 21.0 mA DC)
POSITION
The internal position signal from the CPS-4
is outside of the acceptable range of values.
(Standard voltage is 1.3 - 3.7 volts DC)
TORQUE
The torque sensed at the output shaft of the
actuator exceeds the torque alarm threshold.
(Standard torque alarm threshold is 105%)
STALL
The drive is in a stall condition and stall
protection has been activated.
TEMP °F.
The temperature sensed at the DCM-2 is
outside of the acceptable range.
(Acceptable range is -40°F to 185°F (-40°C
to 85°C)
FB OPEN
The feedback current loop is disconnected,
open, or does not sense a load.
UVOLT
The operating voltage is below the rated
voltage tolerance (under voltage condition).
This LED could also be lit if an individual phase
of a three-phase operating voltage is lost.
ACKNOWLEDGE
Temporarily lit when a pushbutton configuration
operation is performed to confirm that the
pushbutton configuration operation has been
completed.
When a status LED is lit the system alarm
contact will change state. Indication of the system
alarm is available as a dry contact at terminals 12
and 13. The standard factory setting is for the
contact to be closed in the normal state and open
in an alarm state.
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