YASKAWA DX100 Maintenance Manual page 30

DX100
3.6
3.7
3 Inspections
3.6 Battery Inspections
Battery Inspections
The DX100 has a battery that backs up the important program files for
user data in the CMOS memory.
A battery alarm indicates when a battery has expired and must be
replaced. The programming pendant display and the message "Memory
battery weak" appears at the bottom of the display.
Please confirm that the above mentioned message is NOT indicated when
inspecting.
The way to replace the battery is described in chapter 5.1.1.1 "Replacing
the Battery" at page 5-3.
Power Supply Voltage Confirmation
Check the voltage of 1, 3, 5 terminal of the circuit breaker (QF1)
with an electric tester.
Table 3-1: Power Supply Voltage Confirmation
Measuring Items
Correlate voltage
Voltage between earth
(phase-S ground)
Fig. 3-2: Circuit Breaker (QF1)
3-5
Terminals Correct Value
Between 1 and 3, 3 200 to 220V (+10%, -15%)
and 5, 1 and 5
Between 1 and E, 5 200 to 220V (+10%, -15%)
and E
Between 3 and E About 0V
E
1 3
5
Breaker