GE IS200TREGS2B Backup trip at 24 V dc
2.2.1.11 Energy Pack ConnectorThe CPE400 compatible Energy Pack, IC695ACC403, is supplied with a purpose-built cable which
installs in the connector shown in Figure 3.
Use of the Energy Pack is optional. Once charged up, the ACC403 allows the CPE400 to instantly save
user memory to non-volatile storage in the event of loss of power. Upon restoration of power, with
the ACC403 connected, the CPE400 PLC function is able to resume operations from the state saved
at power-down.
Refer to the PACSystems RX3i Rackless Energy Pack IC695ACC403 Quick Start Guide, GFK-3000, for
complete wiring and grounding instructions.
Note that the connector shown in Figure 3 is not supplied with the CPE400.
2.2.1.12 Input Power Connector
If no Energy Pack is to be connected, refer to Section 2.4 of the RX3i IC695CPE400 1.2GHz 64MB
Rackless CPU w/Field Agent Quick Start Guide, GFK-3002. Otherwise, refer to the PACSystems RX3i
Rackless Energy Pack IC695ACC403 Quick Start Guide, GFK-3000,
2.2.1.13 Backwards Compatibility of CPE400
In Proficy Machine Edition, the CPE400 is identified as a PLC within the PACSystems RX3i Rackless
family. To convert an existing project which uses any other PLC, use the Family Conversion feature in
PME. Be aware of the constraints involved. For instance, the first PROFINET Controller in an RX3i
CPU320 application will be assigned to the Embedded PROFINET Controller feature (refer to Section
2.1.6) of the CPE400

The CPE400 is shipped with a real-time clock (RTC) battery installed on an internal circuit board (see
Figure 7). This battery will need to be replaced periodically by a qualified service technician. Typically,
no action is required during initial installation.
Should the RTC battery fail, the CPU date and time will be reset to 12:00 AM, 01-10-2000 at start-up.
The CPU operates normally with a failed or missing RTC battery; however, the initial CPU time-of-day
(TOD) clock information will be incorrect.
There are no diagnostics or indicators to monitor RTC battery status. The RTC battery has an
estimated life of 5 years and must be replaced every 5 years on a preventative maintenance
schedule.
To replace a depleted battery:
1. Power down the CPE400.
2. Disconnect the external cables attached to the CPE400, labelling each for later reconnection.
3. Remove the CPE400 from its installed location.
4. Take the CPE400 to a clean environment.
5. Remove the DIN-rail or panel-mount adaptor plate, as applicable.
6. Place the CPE400 on a workbench so that the heat-sink adjacent to the GE logo on the front
panel is facing up.
7. With ESD protection in place, remove the four screws holding the upper side heat sink in place.
8. Remove the heat sink. This exposes the circuit board, connectors and coin battery shown in
Figure 7.