Valworx 561020C - Actuator Failure Due to Environment; Limit Switch Signal Output Problems

2
Doc: iom5610.5616.dps.trouble.0618 Cornelius, N.C. • USA www.valworx.com
Troubleshooting Guide
Electric Actuators with DPS Positioner
5610/5616 Series
IOM
5610
5616
TSG DPS
PROBLEM POSSIBLE CAUSE SOLUTION
Actuator fails to operate and condensaon
or water is found inside the actuator
 DIN plug connectors are loose, missing or have
damaged seals. Connector seals installed
incorrectly.
 Inspect seals and replace if necessary. Make sure
seals are installed correctly and ghten DIN
connector screws securely (0.4 to 0.5Nm).
 Built in heater was not acvated connuously  Power must be maintained ‘ON’ to acvate
internal heater. This heater will help prevent
condensaon buildup inside the actuator. If the
actuator has failed due to excessive condensaon
or water inside the actuator, replace with a new
actuator.
Actuator fails and excessive black dust
and/or corrosion is found under the red
cover
 Excessive condensaon or water inside
actuator. Highly corrosive environment,
saltwater, chemicals, other.
 If the actuator has failed due to excessive black
dust or corrosion inside the actuator, typically it is
non-repairable and must be replaced with a new
actuator.
 Black dust from motor brush wear may be
caused by exceeding the 75% duty rang of the
actuator.
 Actuator must operate within the 75% duty cycle
rang. Typically, this means the motor can be
running for 45 seconds, then must be o for 15
seconds of each minute.
 Actuator is worn out  Replace with a new actuator
No output signal from posion
conrmaon limit switches
 Switches are wired incorrectly  Check the switch wiring and make sure the
common for limit switches is on PIN 1. If checking
connuity, you should have connuity between
PIN 1 and 2 when actuator is closed and
connuity between PIN 1 and 3 when open. No
connuity when actuator is moving in between
closed and open posions.
 Exceeding the current capacity has damaged
the limit switch. Switch rang 3 amps @
125/250VAC, 30VDC resisve load.
 Damage to the limit switches is not a eld
repairable item. Either return actuator to the
factory for possible repairs or replace with a new
actuator.
 Limit switch cams are out of adjustment.  Limit switch cams can be adjusted if necessary.
Contact customer service for Service Procedure.
Manual Override
Selector Lever
MAN: Manual Mode
AUTO: Automac Mode
Visual Posion
Indicator (shown in
open posion)
LED Power On and
Diagnosc Light
Manual Override
Knob
DIN Plug Connectors