ETC SineWave Power Module (Ethernet) - Manual (Page 11)

IES Ethernet PowerModule Operators’ Manual v1.4 Isine 11
6.11.3 To activate current limitation
1. Press INST.
2. Press Ð or Ï to choose GENERAL
SETTINGS menu. Press ENT.
3. Press Ð or Ï to choose CURRENT
LIMIT menu. Press ENT.
4. The screen shows:
GENERAL
CUR.LIMIT: [ON]
5. Press Ï or Ð to set the current limiting
function either ON or OFF (shown in
square brackets).
6. Press ENT to leave the menu and
record the changes or EXIT (to leave
the previous settings unchanged).
6.12 Voltage regulation
Voltage regulation is a software feature which
maintains the dimmed level of channels in the
event of the mains supply fluctuating (e.g. when
power is supplied from a generator source or a
high-impedance main). The dimmer’s incoming
voltage is measured, and if it diverts from the
anticipated incoming voltage, the dimmer will
adjust the output accordingly to maintain a
constant voltage at the output. The dimmer will
maintain output to about 1V for every 10V input
voltage swing. This feature does not maintain the
voltage of full-on dimmer channels, as the
regulation circuit can only work with sufficient
voltage headroom. Programming involves two
stages, firstly setting the nominal voltage, and
secondly activating the voltage regulation
software.
6.12.1 To set nominal voltage
1. Press INST.
2. Press Ð or Ï to choose LINE
PARAMETERS menu. Press ENT.
3. The screen shows:
LINE V[230]
I:44 FREQ:50
4. Press Ï or Ð to set the voltage
expected (shown in square brackets).
5. Press ENT to leave the menu and
record the changes or EXIT (to leave
the previous settings unchanged).
6.12.2 To activate voltage regulation
1. Press INST.
2. Press Ð or Ï to choose GENERAL
SETTINGS menu. Press ENT.
3. Press Ð or Ï to choose VOL.
REGULATION menu. Press ENT.
4. The screen shows:
GENERAL
VOL.REG. [ON]
5. Press Ï or Ð to set the voltage
regulation function either ON or OFF
(shown in square brackets).
6. Press ENT to leave the menu and
record the changes or EXIT (to leave
the previous settings unchanged).
6.14 Start Mode
PowerModules are equipped with a software
feature to alter the criteria for dimming cold
filaments. The response of a dimmer depends on
the resistance of the filament, which varies
according to temperature. A cold filament has a
slower response than a warm filament. Although
the Isine modules restrict maximum current to 10
times the nominal current, if the complete rig is
subject to a sudden loss and resumption of power,
it is possible for the combined cold switch-on load
to exceed the diversified power supply can
withstand, resulting in nuisance tripping of circuit
breakers. For this reason, the dimmers are
installed with a range of start modes to give the
users flexibility in the set-up characteristics of the
dimmer.
An additional feature is Blink mode which flashes
the dimmer channel with a controllable mark-
space and flash rate for warning signs in the
studio or backstage. The options are:
BASIC: Normal mode
SOFT START: If the circuit has not been
used for 5 minutes, the initial
response time is automatically
set to 500 ms
BURST: If the circuit has not been used
for 5 minutes, the dimmer
burst-fires 20 cycles at full
power to heat the filament
rapidly and to improve
response.
PROP: Proportional burst start mode.
The number of full power
cycles is in relation to the
speed of rise of DMX signal
between 0% and 9%.
BLINK: Flashes the output to full. T-IN
sets the fade in time, T-OUT
sets the fade out time, and the
DMX level sets the flash
period.
6.14.1 To set start mode
1. Press CONF.
2. The screen shows the individual
channel number (or T if the dimmer set-
up scheme copies characteristics to all