216EA61b ABB Control unit new automatic controller module

Description

The auxiliary supply is switched off by means of a switch on the
auxiliary d.c. supply units 216NG61, resp. 216NG62 or 216NG63.
The following must be noted in this respect:

Every electronic equipment rack is equipped with its own
auxiliary power supply unit.

Either one or a maximum of two redundant 216NG6. auxiliary
d.c. supply units can be installed in an equipment rack.

Where two redundant auxiliary d.c. supply units are fitted,
both units must be switched off.
(See also Section 2.2.)
Any work carried out on the protection such as internal adjustments, inserting soldered jumpers, wiring, connections etc., may
only be performed by suitably qualified personnel.
In addition to these instructions, all applicable local regulations
governing work and safety must be strictly observed when installing, wiring and commissioning the protection.
Modifications and repairs to the electronic units or software
changes may not be performed by the user. No liability will be
accepted and any warranty becomes invalid in the case of improper interference or tampering with the protection equipment.
Defective units must be returned to ABB for repair (see also
Section 7.).