LEGRAND BSK93, Operating Manual

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Installation and start-up of KEOR HPE UPS 400-500 kVA
Installation et démarrage de l’ASI KEOR HPE 400-500 kVA
Installazione e avviamento KEOR HPE UPS 400-500 kVA
OMT87187 REV. A 37
4.5 CONNECTION OF THE AUXILIARY CABLES
The UPS systems of the KEOR HPE 400-500 kVA line can be connected to external
controls/components specifically designed to improve the safety and reliability of the device.
 External manual bypass (MBCB);
 External Normal/Bypass selector switch;
 External output switch (OCB);
 Remote emergency power off button (EPO);
 Battery switch auxiliary contact (BCB).
 Diesel generator
The auxiliary cables are connected to a dedicated terminal board. Wires up to 4 mm 2 can be
connected to the terminals.
Auxiliary contacts of OCB - MBCB - BCB
The auxiliary contacts of the external switches MBCB, BCB and OCB (if provided)
must be mandatorily connected to the UPS.
Picture 8 – Auxiliary terminals of KEOR HPE 400-500 kVA
4.5.1 External manual bypass
Auxiliary contact of the external Manual Bypass Switch (if provided) on terminals X10-1/2.
A normally open contact is required; when the contact is closed (see Manual Bypass procedure), the
microprocessor will acquire the status of the contact and shut down the inverter.
4.5.2 NORMAL/BYPASS selector
Auxiliary contact of the external NORMAL/BYPASS selector on terminals X10-3/4.
When the contact is closed the UPS will UPS will transfer the load from inverter to bypass.
4.5.3 UPS output switch
Auxiliary contact of the external UPS output switch (if provided) on terminals X10-5/6.
This auxiliary contact is necessary to indicate the position of the isolator (open-closed)..
In case the external switch is not provided short-circuit the terminals 5-6.