2.4 HOA Keypad Battery Replacement
The HOA keypad contains a monitor battery that allows the user to check drive functions. The battery requires periodic
replacement because the lifespan of the battery is shorter than the performance life of the HOA keypad.
WARNING! Fire Hazard. Properly handle the HOA keypad battery. Improper use of the battery may cause fire by explosion and injury.
Correctly install the battery, paying attention to polarity (+/-). Do not charge the battery or improperly disassemble the HOA keypad.
When replacing the battery, use a Hitachi Maxell CR1220 Lithium Manganese Dioxide Battery or an equivalent battery with
the following specifications:
• Nominal Voltage 3 V
• Operating Temperature Range -20 °C to +85 °C
• Nominal battery life of 2 years (ambient temperature of +20 °C).
NOTICE: Do not heat or throw the battery into fire. The battery remains in use even when power to the drive has been shut off. Be sure to
also remove the battery in the HOA keypad when the drive will be shut off for long periods of time.
A dead battery left inside the HOA keypad may leak and damage the keypad and drive. Replace the battery with a new one immediately
after the expected lifespan has passed or when the “bAT” error is displayed on the HOA keypad.
NOTICE: Observe Perchlorate Best Management Practices (BMPs). BMPs apply to primary lithium (manganese dioxide) coin batteries sold
or distributed in California. Perchlorate Material special handling may apply, please refer to: www.dtsc.ca.gov/hazardouswaste/perchlorate.
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Replacing the Battery
1.
Shut off the power to the drive and remove the HOA keypad.
2.
Insert the tip of a straight-edge screwdriver into the slot in the middle of the battery cover and turn the cover counter-
clockwise to remove the cover.
A – Closed B – Open
Figure 2.1 Remove the Battery Cover
3.
Remove the battery from the HOA keypad.
4.
Correctly install the new battery.
Figure 2.2 Install the Battery
5.
Replace the battery cover on the HOA keypad, insert the tip of a straight-edge screwdriver, and turn the cover
clockwise to close.
6.
Replace the HOA keypad onto the drive.
7.
Apply power to the drive and set o4-17 to 1 to set the Real Time Clock (RTC). Refer to the User Manual packaged
with the drive for details on setting the RTC.
2.4 HOA Keypad Battery Replacement
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YASKAWA SIEP YAIZ1U 03B YASKAWA AC Drive – Z1000 Programming Manual
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