Honeywell Excell 500/600 Controll System 500-XCL5010 - Manual (Page 17)

EXCEL 500/600 INSTALLATION INSTRUCTIONS
Battery Activation during Commissioning
(XC6010, only)
The controller is delivered from the factory with the battery in
the computer module electrically isolated from the internal
circuitry by a safety tag to prevent the battery from
discharging in transit.
The controller is delivered from the factory with the battery in
the computer module electrically isolated from the internal
circuitry by a safety tag to prevent the battery from
discharging in transit.
1. Unscrew the computer module cover with a
screwdriver.
Fig. 37. Accessing the battery compartment
Fig. 38. Removing the faceplate
Fig. 39. Battery compartment
2. Remove the safety tag.
3. Install the cover.
Replacing the Battery
IMPORTANT
Batteries must not be disposed of as household
waste. The law requires that you as the consumer
return the waste batteries. Dispose of the battery
according to legal regulations
During normal operation, the battery is periodically tested
under load. If the battery voltage falls below a threshold of
2.45 V during operation or under load, the computer module
generates an error message which is displayed on the MMI
as a system alarm. The battery must be replaced as soon as
possible after the system alarm.
IMPORTANT
The line power supply must not be interrupted while
replacing the battery; otherwise, all data held in RAM
is lost.
NOTE: In the event that your fingers touch the battery
contacts, please clean the contacts with cleaning
agent.
1. Unscrew the computer module cover with a screwdriver
as shown in the previous section.
2. Release the latch holding the battery in its compartment
(See Fig. 39).
3. Remove the old battery.
4. Insert the new battery with the positive contact pointing
upwards.
Battery type:
Lithium battery 3 V, 1000 mAh, e.g. VARTA lithium battery
CR1/2 AA – 3 V, 1000 mAh
17 EN1R-1047GE51 R0902