Lenze EVF8212-EV020 - 8 Troubleshooting and fault elimination; 8.1 Troubleshooting

Troubleshooting and fault elimination
821XKlimaBA0399 8-1
8 Troubleshooting and fault elimination
You can recognize immediately whether a fault has occured by
display elements or status information (chapter 8.1).
The faults can be analysed by using the history buffer (chapter 8.2)
and the list in chapter 8.3. This list helps you to eliminate the faults.
8.1 Troubleshooting
8.1.1 Display at the controller
During operation without operating module two LED at the unit
front indicate the operating status.
LED Operating status
green red
O
p
e
r
a
t
i
n
g
s
t
a
t
u
s
on off Controller enabled
on on Mains switched on, automatic start inhibited (AS_LC)
blinking off Controller inhibited
off blinking everysecond Fault message, check under C161
off blinking every 0.4 seconds Undervoltage switch-off
off off Programming mode
8.1.2 Display at the operating module
Status indications in the display indicate the controller status.
Display Meaning
OV Overvoltage
UV Undervoltage
IMAX Set current limit exceeded
TEMP Heat sink temperature near switch-off
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