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Cables shall be passed through the hole under the connection terminals.
Make sure that all circuit breakers are “OFF”/”0” before starting with the installation.
Connections shall be done with the order below.
2nd5.1.1
Protective Earth (Ground) Connections
The device shall be earthed for a safe and reliable operation.
Connect the PE ground connectors
before connecting any other cable
Input protective earth connection terminal (PE) of the UPS shall be connected to ground with a low
impedance connection.
PE terminals of the loads shall be connected to output protective earth terminal of the UPS.
If there is an external battery cabin present, it shall be grounded via battery protective earth terminal of
the UPS.
2nd5.1.2
Input Connection
Bring the circuit breaker on the distribution panel to “OFF” or “0” position before making the
connections
Connect the phases to input (X2) L1, L2 and L3 terminals.
A definite phase sequence is needed for the UPS to operate. If you encounter “IN SEQ FLR” alarm at
start up, decommission the UPS, make the protection devices on the input distribution panels “0”/”OFF”
and interchange any two phase cable.
Connect neutral to N terminal of X2.
2nd5.1.3
Separated by-pass mains input connection (optional)
Bring the circuit breaker on the distribution panel to “OFF” or “0” position before making the
connections
Connect the phases to bypass (X3) L1, L2 and L3 terminals.
Make sure that the phases have the same sequence with the input supply.
Connect neutral to N terminal of X3.
2nd5.1.4
External Battery Connection
Do not put the battery fuses into the fuse holder (F5) before operating the equipment and seeing
the “NORMAL” message on the LCD.
Devices with internal batteries may have dangerous voltages on the battery terminals
To connect external batteries, do the following:
