Yaskawa AC Drive P1000 Bypass Technical Manual - Manual (Page 219)

7.4 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.
u Real-Time Clock Adjustment
The HOA keypad will display the Real Time Clock Adjustment Display as shown in Figure 7.1 where the user the user can
adjust the Real-Time Clock. Refer to Manual Clock Adjustment Procedure on page 220 for the Real-Time Clock setting
procedure.
20 1 0/01/01 00:00
Second per month
+ 0 sec
YYYY/MM/DD HH:MM A
B
A – Real Time Clock Setting Display B – Gain/Loss Adjustment Display
Figure 7.1 Real Time Clock Adjustment Display
Display Description
YYYY Set the year with the last two digits.
MM Set the month with two digits.
DD Set the day with two digits.
HH:MM Set the hours and minutes, with two digits for each.
Second per month Set the gain or loss in seconds per month.
Moving the Cursor
Pressing the F2 key or the RESET key will move the cursor to the digit on the right. Pressing the F1 key will move the cursor
to the left.
Changing Settings
• Changing YYYY/MM/DD HH:MM: Pressing the up arrow key will increase the number selected by the cursor from 0 to
9. Pressing the down arrow key will decrease the number selected by the cursor from 0 to 9.
• Setting the Seconds per Month: Pressing the up arrow key will increase the number selected by the cursor from -504 to
+488 in increments of 8. Pressing the down arrow key will decrease the number selected by the cursor from -504 to +488
in increments of 8.
Verifying the New Time Setting
After pressing ENTER , the display will indicate “Entry accepted” and the new time value will be saved to the Real-Time
Clock (RTC).
7.4 HOA Keypad Battery Replacement
YASKAWA SIEP YAIP1B 01A YASKAWA AC Drive – P1000 Bypass Technical Manual 219
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Periodic Inspection & Maintenance