Somat SPC-50S, Operation Manual

Page: 44 / 52

44
SYMPTOM POSSIBLE CAUSE CORRECTIVE ACTION
Not enough water in
Pulper. 1. Trough valve not
properly adjusted. 1. Open valve.
2. Low water pressure 2. See “
Display Module Instructions” to
increase pre-fill and to increase
frequency of make-up water
3. Faulty operation of
solenoid valve (see
equipment schematic
for location). 3. Check for loose electrical
connections. If the valve plunger is
stuck or the coil is burned out, replace
with a new valve.
Too much water in
Pulper. 1. Trough valve open
too far 1. Throttle down valve to decrease
water in pulper and increase water in
extractor (more overflow)
2. Misadjusted PLC
POT setting. 2. The PLC controls the circuit to the
solenoid valve. Too high a setting
would tend to hold the solenoid valve
open too long letting too much water
into the Pulper. See “
Display Module
Instructions” to correct the problem.
3. Faulty operation at
valve. (see equipment
schematic for location.) 3. Repair or replace solenoid valve.
4. Overflow fitting and
line clogged. 4. Clean fitting and line.