Operating Instructions

Chapter 4—Troubleshooting
Service Information
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118
Siemens Industry, Inc.
Owner's Manual
553-104
Building Technologies
2018-10-01
Electrostatic Discharge
An electrostatic discharge (ESD) wrist strap is generally not required when installing or
servicing a PXC Compact. However, if the field panel is installed in a very dry
environment where a high static discharge is likely, an ESD wrist strap is
recommended.
Error Status Messages
For error status message descriptions, see the APOGEE P2 ALN Field Panel User's
Manual (125-3019) or the APOGEE BACnet ALN Field Panel User's Manual (125-
3020) (125-3019 or 125-3020).
Ordering Replacement Parts
If a PXC Compact Series is not operating correctly, it should be replaced.
Replacing the Batteries
CAUTION
AC power must be ON during battery replacement. Otherwise, data loss will occur.
NOTE:
The battery is taped in the tray to secure it during shipping. The tape does not need to
be replaced.
1. Pull the release tab on the curved side of the battery compartment cover.
2. Remove the battery compartment cover.
3. Remove the failed battery, and place a fresh battery in the tray with the positive (+)
and negative (-) ends properly aligned.
– For the AA battery, make sure the positive (+) and negative (-) ends are
properly aligned.
– For the coin cell battery, make sure the positive (+) side is facing up.
4. Replace the battery compartment cover.
Figure 43: Replacing the AA Battery.