Documentation RM-310 C / RM-310 CT / RM-310 C Plug and Play / RM-310 CT Plug and Play
RDN 10001104
31
14.07.2020
7 Troubleshooting
Fault
Possible causes
Recommended action
The “ON” LED does not light
No mains voltage
Check the power supply
Fuse in device defective
Replace fuse
System EMERGENCY-STOP ac-
tuated
Check EMERGENCY-STOP
No valve activity
Wiring to valves interrupted
Check cables and electrical con-
nections
Solenoid defective
Replace coil
Cycle interrupted
-
Check hose connections
-
Check parameter groups D
and E
No downtime cleaning
Parameter E9 = 0
(downtime cycles)
Check parameter E9 “Downtime
cycles”
Contact on input E1 does not
open
Check contact on input E1
Cleaning not effective
Interval too long
Set parameter E1 “Interval 1” to
lower value
Pressure too low
-
Increase pressure
-
Set parameter E1 “Interval 1”
to higher value
Valve defective
Check / replace valves
Pulse time too short
Set parameter E5 “Pulse time” to
higher value
Cycle frequently interrupted
Check differential pressure
transmitter and hose connections
Differential pressure display error Hose connection error
-
Drain hoses. Clean hose con-
nection points on the filter
housing with compressed air
(only in direction of filter, never
in direction of sensor)
-
Install hoses without kinks
-
Check hose connections in
the device for water, kinks, etc.
The display shows the message
„RM-VXX Comm.Alarm" (com-
munication alarm).
The number of connected I/O
modules RM-V6/X or RM-V8 /
RM-V16 does not agree with the
parameter setting.
-
Check the EB parameter set-
ting and correct if necessary
-
Check bus connection for po-
larity and electrical connection.
-
Check address setting of the
I/A modules.
