18
INV2500-HS & INV5000-HS SERIES
OPERATING MANUAL
15.3
Take one of the inverter modules and turn the DC input circuit breaker on;
then after the Output OK LED has come on turn the AC output circuit breaker
on. This sequence must be performed for the inverter A side and then the B
side. Repeat this for each paralleled inverter in turn until all inverters are on.
Make sure that the three green LEDs are on for each inverter.
15.4
With all inverters on, turn on each AC output distribution circuit breaker. The
inverters will automatically share output currents to an accuracy of ± 10%.
16.0
REPLACING AN INVERTER MODULE
16.1
The following instructions are for replacing an INV2500-HS inverter module
in an INVR2U-HS shelf.
16.2
The inverter module may be field replaced only in an INVR2U-HS shelf, i.e.,
when it is parallel connected for 115VAC output. For the INV5000-HS-230
inverters, the replacement must be done at the factory due to the complexity
of the series connection of the inverter modules.
16.3
When the INV2500-HS inverters are operated in a N+1 redundant mode, only
the inverter module being replaced needs to be turned off as described in the
following paragraphs. In this case it is true hot-swap replacement. If the
115VAC INVR2U-HS is operated with two modules at its full 5,000 volt-
ampere load, then both modules should be shut down in the manner de-
scribed in paragraph 16.4. When starting up after replacement, both inverter
modules must be turned on as described in paragraph 16.5.
16.4
Perform the following steps on the inverter module to be removed:
16.4.1
Turn off the AC output breaker (down position).
16.4.2
Turn off the DC input breaker (down position).
16.4.3
Remove the front retention panel by removing the four Phillips
screws.
16.4.4
Remove the inverter module from its shelf.
16.5
To put a new inverter module in place, perform the following steps:
16.5.1
Make sure the input and output breakers of the new inverter
module are in the off (down) position.
16.5.2
Install the replacement inverter module in the shelf.
