Siemens PXC Compact Series User Manual

Service Information
Troubleshooting Compact Field Panels
91 |
100
Siemens Industry, Inc.
Technical Reference Manual
145-172
Building Technologies
Restricted
2018-09-25
BATT LOW LED
The BATT LOW LED is on or the battery low warning is displayed at the
operator's terminal.
CAUTION
If you do not have a current backup, save the database before continuing.
1. Check that the mylar insert was removed from the AA (LR6) battery holder.
2. Check for polarity (+ to +) and (- to -).
3. Check that the battery is properly seated in the battery holder.
4. Replace the battery.
BATT LOW LED remains on after the battery has been replaced.
 Verify that the correct type of battery is being used. The LOW BATT LED remains
ON if an alkaline battery is used in PXC Compact models with extended
temperature range operation.
CAUTION
Only use a 3.6 Volt lithium battery in PXC Compact models with extended
temperature range operation.
Only use a 1.5 Volt alkaline battery in standard
PXC Compact models.
• The 3.6 Volt lithium battery is designed to operate at both high and low temperature
extremes, and it provides a long service life in an extended temperature environment.
• The 1.5 Volt alkaline battery is not guaranteed to provide backup protection in
models with extended temperature range operation, even if the controller is operating
in a room-temperature environment.
• If a 3.6 Volt lithium battery is used in standard PXC Compact
models, the battery
quickly discharges and provides much less backup protection than a 1.5 Volt alkaline
battery.

Siemens PXC Compact Series Specifications

General

Brand	Siemens
Model	PXC Compact Series
Category	Control Unit
Language	English