Powerware SOLA 4000 manual Diesel Generator Operation

SOLA 4000 - Installation and Initial Start-Up

1 Installation

1.7 Diesel - Generator Operation

During diesel generator operation, if the frequency of the diesel- generator, with UPS and load connected, is unstable, it is advisable to disconnect the synchronisation of the inverter. This is achieved with a normally-open, voltage-free contact (which closes during diesel-generator operation) and is connected to the connector M4 Pin 7 and Pin 8 as follows:

FIG. 1.7.1 Connection for Diesel Generator Operation (connector M4) - synchronisa- tion disable.

Note1: For Hot-Standby or parallel systems, it is sufficient to feed one contact into one unit only, however they may be connected in parallel at M4 Pin7 and Pin 8 for all units

If it is necessary to reduce the current supplied by the diesel- generator, then a second voltage-free contact (again normally open) is required and must to be connected to the connector M8, Pin 1 and Pin 2 on the rectifier electronic mother board (RBPHC16) see FIG.1.7.2

FIG. 1.7.2 Connection for Diesel Generator Operation (connector M8) - second level current limitation.

Note 1: The cable used in both cases must be twisted pair, with a total shield.This shield must be grounded at one end (the cabinet of theUPS may be used).

Note 2: The cable for current limitation must be connected to all units for parallel or hot-standby units, using separate voltage-free contacts.

JUE 401265 33