YOKOGAWA SSC60D User Manual

7.7.1 Replacing Battery
This section describes replacement of battery placed in the processor module.
CAUTION
• Use only the battery specified by Yokogawa Electric Corporation.
•
If the memory contents must not be cleared when replacing the battery, make sure you
leave the power to the safety control unit turned on. Turning OFF the battery switch when
the power is off results in the loss of all the memory contents in the processor module.
n
Expiration Date Label
On the front cover of the processor module, a label is stuck to indicate the expiration date of
the battery
.
The expiration date of the battery varies with the ambient temperatures.
START
/STOP
BATTERY
RCV 1 2
SND 1 2
1 2 3 4 5 6 7 8
HRDY
RDY
CTL COPY
BUS1
BUS2
ON
OFF
Processor module
Battery expiration date label
BATTERY LIFE
(AVE.ROOM TEMP 30 °C MAX.)
V Net
START
/STOP
BATTERY
ON
OFF
PORT
DOM
ST A
CN1
Behind front cover
Figure SCP451/SCP401 Figure SCP461
Behind front cover
ON
OFF
CN2
Date of battery life
START/STOP switch
Battery
Battery ON/OFF switch
Connect or for battery
Figure 7.7.1-1 Battery Expiration Date Label
SEE
ALSO
For more information about battery replacement, refer to:
7.7, “Parts Requiring Periodical Replacement” on page 7-32
n
Replacing Battery
How to replace the battery is explained as follows.
<7.7 Parts Requiring Periodical Replacement > 7-34
IM 32Q06C10-31E 4th Edition : Jan.30,2015-00

YOKOGAWA SSC60D Specifications

General

Brand	YOKOGAWA
Model	SSC60D
Category	Control Systems
Language	English