ETC SineWave Power Module (Ethernet) - Manual (Page 10)

IES Ethernet PowerModule Operators’ Manual v1.4 Isine 10
5. Press ENT to leave the menu and
record the changes or EXIT (to leave
the previous settings unchanged).
6.10 Non-dim operation
PowerModules may be set to switch on and off
rather than dim, and in this way are used for many
other functions such as switching power to
working lights, non-dim and auxiliary circuits.
There are two methods of selecting non-dim
operation – as described here, and also as one of
the ‘Dimmer Curves’ as described in the previous
section. In this mode the channel switches on at
6% and switches off at 5%.
6.10.1 To select a dimmer to operate as a non-
dim switch
1. Press CONF.
2. The screen shows the individual
channel number (or T if the dimmer set-
up scheme copies characteristics to all
dimmers in the rack) and gives access
to all configuration options.
3. Press Ï or Ð to select the channel, and
then press Î to select the NON-DIM
option shown as follows:
CONFIG: CH:1
I/O: [NO]
4. Press Ï or Ð to select I/O operation
(either YES for Non-Dim or NO for
normal dimming operation).
5. Press ENT to leave the menu and
record the changes or EXIT (to leave
the previous settings unchanged).
Note: A special feature is included to
prevent damaging accidental ‘flashing’ to
discharge loads. If T-IN is set to, say, 10
secs. and T-OUT to 99secs, then the on
period is fixed for 10 seconds, and 99
seconds has to elapse before switching on
is possible again.
6.11 Maximum current
Each PowerModule has a facility to measure the
current and to restrict the operation of all dimmers
(or in the case of PM3 or 6, the dimmers on each
phase) to ensure the maximum current is not
exceeded. This operates as a ‘maximum demand’
protection system, and reduces the levels of all
dimmers on the phase which is exceeding the
preset current.
However, to eliminate the risk of an important light
automatically dimming during a performance, it is
possible to prioritise the channels which will
reduce in intensity to ensure the maximum
demand is not exceeded. This is achieved by
setting the dimmer channel to “priority”, and it will
then ignore any instruction to reduce level if the
maximum demand is exceeded. Similarly, non-dim
channels are also unaffected by the current
limiting function.
This function is activated in three steps: setting a
current limit, choosing any priority channels, and
activating current limiting as described below.
6.11.1 To set up maximum current levels
1. Press INST.
2. Press Ð or Ï to choose LINE
PARAMETERS menu. Press ENT.
3. The screen shows:
LINE V[240]
I:40 FREQ:50
4. Press Ï or Ð to set the typical voltage
of the mains supply (shown in square
brackets).
5. Press Î to select maximum current for
the module (or per phase for the PM6),
and adjust the level using Ï and Ð.
6. Press Î to select frequency and press
Ï or Ð to switch between 50Hz or
60Hz.
7. Press ENT to leave the menu and
record the changes or EXIT (to leave
the previous settings unchanged).
6.11.2 To set up priority channels
1. Press CONF.
2. The screen shows the individual
channel number (or T if the dimmer set-
up scheme copies characteristics to all
dimmers in the rack) and gives access
to all configuration options.
3. Press Ï or Ð to set the channel number
required, followed by Î repeatedly to
select PRIORITY option shown as
follows:
CONFIG: CH: T
PRIORITY: [NO.]
4. Press Ï or Ð to select this channel for
priority operation (either YES for priority
or NO for normal operation).
Note: If set to No, the dimmer will take part in a
general reduction of the intensity if the
preset maximum current (maximum
demand) for the phase in this dimmer
rack is exceeded. If set to Yes, the
dimmer will remain at its level, and
others will reduce in level to maintain the
maximum phase current.
5. Press ENT to leave the menu and
record the changes or EXIT (to leave
the previous settings unchanged).