Specifications

19
INV2500-HS & INV5000-HS SERIES
OPERATING MANUAL
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 invert-
ers, 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 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.
16.5.3 Replace the front rention panel by replacing the four Phillips
screws.
16.5.4 Turn on the DC input breaker (up position).
16.5.5 After the Output OK LED comes on, turn on the AC output
breaker (up position).
16.5.6 All green LEDs on the inverter modules should now be on,
indicating normal operation.