Crestron electronic DIN Rail Universal Dimmer DIN-1DIMU4 User Manual

Page 31

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Crestron DIN-1DIMU4

DIN Rail Universal Dimmer

DIN-1DIMU4 Troubleshooting (Continued)

TROUBLE

POSSIBLE

CAUSE(S)

CORRECTIVE

ACTION

LOADS
LED on a
channel is
blinking once
per second.

Over current
protection has
tripped.

Check wiring on
corresponding output
for a short circuit.
Check total load on
corresponding output
for an overload.

LOADS
LED on a
channel is
blinking twice per
second.

Channel has been
programmed to use
reverse phase
control (REV) but
has detected a
magnetic load
connected.

Change programming
to use AUTO or FWD.

LOADS
LED on a
channel is
blinking three
times per
second.

The channel has
overheated and
shut down to
protect itself.

Reduce loading on the
channel. Reduce
loading on the module.
Improve enclosure
ventilation to reduce
ambient temperature.

Unit ignores
Cresnet
commands.

Unit is in Override
mode.

Take out of Override
mode by pressing OVR
button or releasing
override contact closure.

Disconnect load to verify
problem disappears.

Replace transformers.

LOADS
LED on a
channel is
constantly
blinking fast.
Light connected
to dimmer
intermittently
flashes to full
brightness.

The Electronic
transformers
connected are not
suitable for
dimming.

Add a minimum 10W
incandescent lamp in
parallel with
transformers.

(Continued on following page)

Operations & Installation Guide – DOC. 6668D DIN Rail Universal Dimmer: DIN-1DIMU4

27

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