Parker Zander BSP-MT 10/D3, Руководство по эксплуатации, Страница: 43 / 60

EN | User Manual Identify and eliminate faults
BSP-MT 10-95/D3 41
Fault Possible cause Remedy
Specialised personnel Service technician
Dryer does not switch
over Solenoid valve Y1/Y2 does
not open correctly. Check supply voltage, ca-
ble, contacts and solenoid;
replace, if necessary.
• •
Solenoid valve Y1/Y2 can-
not be opened properly
(audible humming sound or
valve fl apping). Check supply voltage.
Check pilot valves; replace,
if necessary.
• •
Control board defective. Check fuse in supply line
and in the switchbox; re-
place, if necessary.
• •
Power supply interrupted,
cable broken. Reconnect the unit to the
power supply.
• •
Compressor might be off. Check compressor synchro-
nisation circuit.
•
Error in control programme. Restart programme.
•
No expansion Solenoid valve Y3/Y4 can-
not be opened. Check supply voltage, ca-
ble, contacts and solenoid;
replace, if necessary.
• •
Solenoid valve Y3/Y4 can-
not be opened properly
(audible humming sound or
valve fl apping). Check supply voltage.
Check spring and solenoid;
replace, if necessary. Check
solenoid valve for contam-
ination; clean or replace, if
necessary.
• •
Dryer is continuously
bled Solenoid valve Y3/Y4
cannot be closed properly
(audible humming sound or
valve fl apping). Check supply voltage.
Check spring and solenoid;
replace, if necessary. Check
diaphragm; replace, if
necessary.
• •
Main valve V1/V2 does not
open. Check main valve, replace
if nec.
• •
Dryer is excessively
bled Solenoid valve Y1/Y2 can-
not be closed Check solenoid and
diaphragm; replace, if
necessary.
• •
Pressure dew point is
not reached Operating pressure is too
low. Increase operating pressure.
•
Compressed air volume fl ow
is too high. Reduce compressed air
volume fl ow
•