Evoqua WALLACE & TIERNAN Barrier M 1200, Operating Manual

Page: 74 / 110

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WT.090.370.000.DE.IM.0715
Operation
Barrier M
5.
5.12 Errors
Error messages are indicated on the operating panel by the re-
spective LEDs and are shown as text on the display depending on
what screen the unit currently has open. If there are several errors
at the same time the respecitve messages are displayed alterna-
tely. The error message is shown on the display until it is acknow-
ledged by pressing the acknowledge key. Active errors can be
read off in the diagnosis menu.
When the error has been remedied, the error must be reset under
the menu item "Alarm Reset" using the acknowledge key on the
operating panel. The error message is deleted from the diagnosis
menu.
Each signaled error, except a cleaning alarm can also be reset by
the external release contact e. g. from a switching room. An auto-
matic reset takes place by switching the unit off first and, after re-
moval of the malfunction, restart it again. To this the DIP switch 10
„Alarm reset via external release” must be in position „ON” (this
can only be done by customer services or authorized and trained
technical personnel).
If it is not possible to remedy the fault or error yourself, please con-
tact us directly.
Alarm Reset
Error message /
Fault
Cause Remedy
Display dark and
LEDs do not light up • No power supply • Have an electrician check whether
• power is supplied
No lamp LEDs light
up • The lamp does not switch
itself on • Have an electrician check whether
• the enable input is connected or
bridged (refer to wiring diagram)
• the power circuit breaker in the cont-
rol cabinet is switched on.
• the fuse on the controller is faulty -
replace the fuse (see chapter 6.1,
Spare parts).
• Replace faulty lamps