Replacing The Absolute Encoder Battery (Abs) - Omron OMNUC R88D-WT15HF User Manual

Troubleshooting
5-6

Replacing the Absolute Encoder Battery (ABS)

Replace the absolute encoder backup battery if it has been used for at least five years, or
if an A.93 (battery warning) warning or an A.83 (battery error) alarm occurs.
H Battery Model and Specifications
Item
Name
Model numbers
Battery model
Battery voltage
Current capacity
Note Refer to 2-10 Absolute Encoder Backup Battery Specifications for dimensions and wiring details.
H Battery Replacement Procedure
• Replace the battery using the following replacement procedure. After replacing the battery, if a A.81
(backup error) alarm does not occur, the replacement is completed. If an A.81 alarm occurs, you need
to set up the absolute encoder.
1. Turn ON the power supply to the Servo Driver's control circuit.
S Turn ON the power supply to the Servo Driver's control circuit only. This will supply power to the
absolute encoder.
Note If an A.93 warning occurs when the power supply is ON, turn OFF only the main circuit power
supply after completing operation and then perform the following replacement procedure. If
the control circuit power supply is turned OFF, the absolute data in the absolute encoder may
be inadvertently cleared.
2. Replace the battery.
S Remove the old battery from the Servo Driver's battery holder, and disconnect the connector to the
battery from the battery connector CN8.
S Place the new battery in the battery holder, and insert the connector correctly into battery connec-
tor CN8.
3. Turn the power supply OFF, then ON again.
S After correctly connecting the new battery, turn OFF the power supply to the Servo Driver, then
turn it ON again.
S If a Servo Driver alarm is not displayed, battery replacement is completed.
Note If A.81 (backup error) is displayed, you need to set up the absolute encoder. Refer to 4-2-2
Absolute Encoder Setup and Battery Changes, and perform the setup and make the initial
settings for the Motion Control Unit.
Absolute Encoder Backup Battery Unit
R88A-BAT01W (For all Servo Drivers except R88D-WT60H to R88D-WT150H)
R88A-BAT02W (For R88D-WT60H to R88D-WT150H)
ER3V (Toshiba)
3.6 V
1,000 mASh
Specification
Chapter 5
5-23