Service Manual

GSM-205-523
Replacing a hold-up battery module
31st Oct 01
Maintenance Information: Horizon macro indoor
68P02902W09-B
CONTROLLED INTRODUCTION
Maint. 2–17
Replacing a hold-up battery module
To Replace a
hold-up battery
module
WARNING The batteries are capable of supplying high short circuit
currents and as such provides a high energy hazard.
To replace a hold-up battery module:
1. Verify that the enable switch of the replacement hold-up battery module is
set to O.
2. Cut the cable tie that secures the jumper lead to the isolation connection
access hatch. Open the access hatch by turning the fastener a quarter
turn anticlockwise and lifting.
3. Fit the jumper lead between the battery spade terminals as shown in
Figure 2-8. Close the access hatch and turn the fastener a quarter turn
clockwise to secure.
4. Set the enable switch of the faulty hold-up battery module to O (off). The
ACTIVE LED (green) will extinguish (the green LED may already be off, if
a fault has resulted in output failure). The ALARM LED (red) will light, or if
already lit due to alarm state, will stay on.
WARNING
The hold-up battery module weighs 5.9 kg. Handle with
care.
5. Unscrew the module attachment screws using a torxdriver, and remove
the module. The red LED will go off.
6. Insert the replacement hold-up battery module.
7. Ensure the replacement hold-up battery module is firmly in position and
tighten both module attachment screws using a torxdriver. Tighten to a
torque of 2.2 Nm.
8. Set the hold-up battery module enable switch to I (on). Check that the
CHARGE LED (green) is lit.
NOTE
The ACTIVE LED (green) will not light until 1.5 to 2 hours
after installation. The ALARM LED (red) may also be lit if
the initial battery voltage is below 19 V dc (+/–0.25 V).
9. Remove the battery isolation jumper lead from the faulty hold-up battery
module and secure it to the outside of the access hatch before
transportation.