12.5 Testing the Dimmer Option:
Once the system is completely wired, a full test should be performed to ensure proper
dimming level and ensure that the system is not overloaded during Inverter Mode. To
test the system, we recommend that a current clamp-on is used to measure OUT 1-3
current levels during the Charging Mode.
During Charging Mode, the Emergency Light fixture are controlled by the dimmer
since the 0-10 V signal is connected through the small signal control relay contacts.
Measure the current on OUT 1-3 and ensure that the sum of all the outputs do not
exceed the Inverters ratings.
By pressing each circuits respective TEST button the Emergency Lights will be
controlled by the Dimming Option. The dimming level can be adjusted to full brightness
if the DIM ADJ. is rotated fully clockwise (CW) or can be dimmed by rotating the DIM
ADJ. counter clockwise (CCW). Measure the current on OUT 1-3 and ensure that the sum
of all the outputs do not exceed the Inverters ratings.
Finally, press the SYSTEM TEST button to ensure all lights are illuminated and that
there are no faults when running in Inverter Mode.
Charger Mode Operation
While utility power is present, the Inverter
is in the charging mode. DIM 1 DRIVER is
connected directly to DIM 1 DIMMER
through a small signal relay
–
this allows
for the Normal Lights and the Emergency
Lights to be controlled from the Dimmer.
CMD 1 instructs the OUT 1 to turn on/off.
Inverter Mode Operation:
When the Inverter senses a utility power
loss, it transfers to the Inverter Mode. DIM
1 DRIVER is disconnected/isolated from
DIM 1 DIMMER by a small signal relay
–
this
allows the Normal Lights to be
disconnected/isolated from the Emergency
Lights. The Emergency Lights will go to full
brightness or to a preset level adjusted
internally in the Inverter. AC Output OUT 1
is energized regardless of the state of the
CMD 1.
Terminology
Charger Mode:
Utility Power is present and Inverter is
charging the batteries.
Inverter Mode:
Utility Power is not present
(Emergency) which signals the
inverter to provide output power and
discharges the batteries.
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