GE Industrial Solutions GERAPID 2508, 4008, 5008, 6008 WITH ARC CHUTE 1X2 - Manual (Page 10)

10 Design and specifications are subject to change without notice S47183De rev.02 2011-03-14
3.2.12 Operation counter
An operations counter is available on the UL Gerapid Breaker.
It is an electro-mechanical, non-resettable design, and
increments with each open/close cycle as long as control
power is available (manual operation of the breaker with
control power removed with not increment the counter).
.
Fig, 17.1 Control box with counter.
Fig. 17.2 UL with Close-Stop Interlock and Cover
3.2.13 Remote/Local Close-Stop Interlock
As a standard feature on UL Labeled breakers, the Close-Stop
Interlock switch mounted on the control box front cover
provides the means to electrically block both local and remote
closing signals from closing the breaker. The selector switch
can be padlocked in the “Disabled” position for LOTO
procedures. The Close-Stop Interlock feature is optional on
non-UL breakers.
3.2.14 Electronic control system
All the control cards are installed in the upper compartment of
the control box [Fig. 18]. There are six slots. Slots 1 and 5 are
empty. Starting from left following cards are installed:
Fig. 18 Control box inside
 Slot (2) NEKO control unit [Fig. 19-1] – internal control unit
with capacitor bank. Releases firing signal for ED coil (-X2
:10/:11) and provides indication of the capacitors charging (-
X3 :6/:7). NEKO control unit also blocks the firing signal until C-
bank is fully charged (~15 sec).
 WARNING: NEKO unit requires a high quality firing signal. Be
sure, that voltage level is between 6 V…24 V DC and there are
no short spikes on signal (<3 ms). This might lead to major
defect of the NEKO control unit!
Fig. 19-1 NEKO control unit
 Slot (3) Internal voltage converter [Fig. 19-2] - converts
external supply voltage (-X3:4/:5) to the internal 24 V DC.
Required by controls (except for the drive supply).
Fig. 19-2 Voltage converter 110V/24 V DC.