ETC SineWave Power Module (Ethernet) - Manual (Page 14)

IES Ethernet PowerModule Operators’ Manual v1.4 Isine 14
For further information, please refer to the
DimSTAT software manual.
8. Fault finding
8.1 Reported faults
8.1.1 No load (control present but no output)
This can be reported if either a load fails (lamp
blows without shorting the output first), or the load
is disconnected in error, or a load is not
connected.
8.1.2 Short circuit
This can happen if a lamp filament blows, or if a
faulty cable or luminaire is connected to the circuit.
A temporary short circuit such as a lamp failure
will produce a SHORT report in the log, but the
dimmer will usually reset to normal operation
when the fault has cleared. If the fault continues,
the report will change to DISABLE. Disconnect the
load from the dimmer and check the circuit wiring
and connected loads for the short.
8.1.3 Over-temperature
If one of the Isine modules exceeds an operating
temperature of 78°C, the dimmer will switch off
and report an over-temperature condition. This
can be caused if the ventilation is obstructed (e.g.
the dimmer is resting on the floor and is being
used continuously at full load).
Note: if the dimmer module is not suspended
in free air then it will cooled less
effectively and its power handling
capacity will be limited.
8.1.4 Overload
The dimmer will respond quickly to any error
which demands a higher current than expected,
for example 4 kW plugged into a 2.5 kW dimmer.
The dimmer will automatically switch off and after
3 seconds will attempt to fade up the circuit again.
If this process fails 3 times, the dimmer will report
an overload and will disable until the fault is
cleared and the dimmer reset.
8.1.5 Control
The control fault indicates a problem controlling
the load within the dimmer. This can result in the
dimmer channel giving a full output under any
control condition, and can only be repaired by
exchanging an Isine module. However, if this fault
occurs the dimmer circuit should be carefully
assessed to find a cause before another module
suffers the same problem. Typical system
problems are high voltage spikes caused by an
unbalanced generator supply.
8.1.6 Voltage out of range
If the supply voltage varies above or below the
nominal voltage anticipated (and set as the
benchmark) the dimmer will close down and report
a voltage error. In the case of temporary supply
fluctuations, the fault will auto-reset, but if the
dimmer shuts down, the first point to check is the
voltage calibration setting of the dimmer to make
sure it is set to the local supply voltage.
8.1.7 Disable
If a fault persists beyond the auto-reset time of 10
seconds, the dimmer will close down awaiting
manual intervention and reset. Check the fault log
to see the type of fault which caused the dimmer
to disable.
8.2 First line maintenance
This check list provides initial assistance in the
case of a problem which has not been identified
and reported by the dimmer’s own software.
8.2.1 LCD display blank
Check all power supply connections. Check
module’s RCBO or MCB is on.
8.2.2 LCD display corrupted
Switch off and on again. If the fault persists, open
the module and check all connections, and that
plug-in ICs are secure in their sockets.
8.2.3 No output from one channel
Check the control signal is active. Check the DMX
address is correct. Check there is no ‘l’ showing
on the output screen. Remove the module and
check the internal 15 A fuse.
8.2.4 RCBO trips continuously
Unplug all load plugs. If the fault persists, refer to
service technician. If the RCBO holds in, replace
one plug at a time until the RCBO trips again.
Check the circuit (cables, plugs and sockets,
distribution, lights) for a loose terminals, a phase
to neutral short, a phase to earth short or a neutral
to earth short and correct where necessary.
8.2.5 Dimmer output is full on all the time
Disconnect the DMX cable to isolate control. If the
dimmer is still on, check a) the MANual level has
not been set to 100%; b) the dimmer curve has
not been set to ‘Inverted’; c) the MIN level is at
zero. If the dimmer is still on, and there is no
‘Control’ fault identified, refer to a service
technician.
If the dimmer switches off when the DMX cable is
removed, check that both NON-DIM mode
selections (dimmer curve and Channel
Configuration I/O) are set to OFF. If one or both
these functions are set to ON, the dimmer will be
operating in Non-Dim mode.
8.2.6 Lamp filaments are noisy
Replace the lamp with a new lamp, and in the
case of 110 V PAR lamps, try the circuit with a
different manufacturer’s lamp, as some lamps are
noisy even on smooth mains supplies.
8.2.7 Dimmers work, but DimSTAT doesn’t
recognise all or some dimmers
Check the DMX network to ensure 2-pair cable is
used and correctly connected throughout. If a
DMX booster/isolator unit is used in the network,
check that it supports bi-directional data on pins 4
and 5.