Troubleshooting; Troubleshooting And Alarm States - Pepperl+Fuchs LAL-SRW series Manual

WARNING DEVICE LAL-SRW

Troubleshooting

6
6.1
EN
LED indication
All LEDs are off.
"SUPPLY" LED flashes.
"SUPPLY" LED lights up.
■
"SYSTEM OK" LED lights
■
up.
"SUPPLY" LED lights up.
■
"SYSTEM OK" LED
■
flashing.
"SUPPLY" LED lights up.
■
"OVERFLOW ALARM"
■
LED lights up.
"SUPPLY" LED lights up.
■
"OVERFLOW ALARM"
■
LED flashing.
"SUPPLY" LED lights up.
■
"HIGH OIL LEVEL" LED
■
lights up.
"SUPPLY" LED lights up.
■
"HIGH OIL LEVEL" LED
■
flashes.
28 - EN
Troubleshooting

Troubleshooting and Alarm States

Note!
If the DIP switch "Acoustic alarm" is set to ON (see chapter 4.1), an acoustic
signal sounds when an alarm or sensor fault occurs.
Cause
The warning device is not
functioning.
System is being put into
operation. Overflow sensor in
warm-up phase
(approx. 10 s ... 20 s).
No alarm at present. The warning system is operating normally.
No alarm at present. An alarm
occurred in the past.
Excessive liquid level
Sensor fault or lead breakage
Maximum oil layer thickness
reached.
Sensor fault or lead breakage
Action
Check that the supply voltage is
connected.
Wait until the overflow sensor has
reached operating temperature.
1. Check the status of the separator.
2. Press the "ALARM RESET" button.
It is essential to check the separator
status. If necessary, takes measures to
stop the alarm situation. The alarm
situation can result if:
the coalescence filter is blocked or
■
the drain is defective or blocked.
■
Check sensor and sensor installation
and replace the overflow sensor, if
necessary.
It is essential to check the separator
status. Empty (dispose of) the oil/petrol
separator, if necessary.
Check sensor and sensor installation
and replace oil level sensor, if
necessary.