For fan type IRB 250 E1 to IRB 500 F3 EC, IRB 500x250 E1 to 1000x500 F3 EC.
Operating conditions are indicated by the status LED with flashing code.
All others have alarm relay only.
LED Relays K1
Cause
Reaction of Controller
Adjustment
Code
(for function
Explanation
factory setting)
OFF
De-energized, No line voltage.
Line voltage available?
Unit switches OFF
terminals
and automatically
11-14
ON when the vol-
interrupted.
tage has been
restored.
ON
Energized,
Normal operation without fault.
terminals
11-14
bridged.
1 x
Energized,
No enable = OFF
terminals
Check terminals
11-14
Terminals “D1” - “24 V / 10 V”
“D1” - “24 V/10V”
bridged.
(Digital In 1) not bridged.
2 x
Energized,
Active temperature monitoring.
terminals
The device has an active temperature
At sinking temperature the
Check cooling
11-14
monitoring to protect it from damage
modulation rises again llinear.
of the controller.
bridged.
caused by excessively high interior
temperatures.In case of a temperature
increase above the predetermined
threshold value, the level control is
linearly reduced. To prevent a shut
down during reduced operation by to
high temperature of the entire system
(in this operating mode, allowable for
the controller) no switch off an no
alarm indication occurs by the relay.
F A U L T D E T E C T I O N EC motor with LED flashing code
OFF
ON
1 x
2 x
3 x
4 x
5 x
6 x
7 x
8 x
9 x
13
E N G L I S H
