Omron SYSMAC CS Series Operation Manual page 621

Replacing User-serviceable Parts
Replacement Battery
!Caution We recommend replacing the battery with the power OFF to prevent the CPU
Unit Versions and Corresponding Battery Replacement Methods
Type
CS1 CPU Unit No unit version
CS1-V1 CPU Unit
CS1-H CPU Units Pre-Ver. 2.0
Unit Ver. 2.0
Unit Ver. 3.0
Replacement Procedure for CS1-H CPU Units (Pre-Ver. 2.0 and Ver. 2.0) with One Battery Connector
1,2,3...
When the ERR/ALM indicator flashes, connect the CX-Programmer to the
peripheral port and read the error message. If the message "BATT LOW"
appears on the Programming Console* and the Battery Error Flag (A40204) is
ON*, first check whether the battery is properly connected to the CPU Unit. If
the battery is properly connected, replace the battery as soon as possible.
Once a low-battery error has been detected, it will take 5 days before the bat-
tery fails for the CS1-H CPU Units and it will take the time indicated in the pre-
vious table for the CS1 CPU Units before the battery fails. Battery failure can
be delayed by ensuring that the CPU Unit power is not turned OFF until the
battery has been replaced.
Note *The PLC Setup must be set to detect a low-battery error (Detect Low Bat-
tery). If this setting has not been made, the BATT LOW error message will not
appear on the Programming Console and the Battery Error Flag (A40204) will
not go ON when the battery fails.
The battery replacement method depends on whether a CS1-H or CS1 CPU
Unit is used, and on the CPU Unit's unit version.
Unit's sensitive internal components from being damaged by static electricity.
The battery can be replaced with the power ON, but be sure to touch a
grounded metal object to discharge any static electricity before replacing the
battery. After replacing the battery, connect a Programming Device and clear
the battery error.
Unit version Number of
connectors
2
1
2
Note The replacement time indicates the time required to install a new battery after
turning OFF the power (25°C). If the CPU Unit is without a battery for a longer
period of time, data will not be stable.
Use the following procedure to replace a battery that has been completely dis-
charged.
1. Turn OFF the power to the CPU Unit. (If the power was already OFF, turn
the power ON for at least one minute before turning the power OFF again.)
BATT LOW
Replacement
battery time (see note)
30 s
3 min.
3 min.
Section 12-2
Replacement method
Refer to Replacement Procedure
for CS1, CS1-V1, and CS1-H (Ver.
3.0) CPU Units with Two Battery
Connectors.
Refer to Replacement Procedure
for CS1-H CPU Units (Pre-Ver. 2.0
and Ver. 2.0) with One Battery
Connector.
Refer to Replacement Procedure
for CS1, CS1-V1, and CS1-H (Ver.
3.0) CPU Units with Two Battery
Connectors.
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