Part replacement period, Replacing the battery for an absolute encoder, Recommended battery – Yaskawa FSP Short Form User Manual
Page 42

FSP Amplifier Short Form Installation Guide
Inspection and Maintenance
42
7.2. Part Replacement Period
The following parts are subject to mechanical wear or deterioration over time. 
To avoid failure, replace these parts at the frequency indicated. 
If the FSP Amplifier has been repaired at YEA, its parameters will be set back to
standard settings at shipment. Always check parameters before operating the 
servomotor. 
Part
Standard
Replacement
Period
Replacement Method
Operating
Conditions
Cooling Fan
4 to 5 years
Replace with new part
Smoothing
Capacitor
7 to 8 years
Test. Replace with new part if
necessary.
Relays
—
Test. Replace if necessary.
Fuse
10 years
Replace with new part.
Electrolytic 
Capacitor on 
Circuit Board
5 years
Test. Replace with new 
circuit board if necessary. 
• Ambient
temperature:
annual average 
30ºC 
• Load factor:
80% max.
• Operation rate:
20 hours/day 
max. 
7.3. Replacing the Battery for an Absolute Encoder
Battery replacement is only required for servo systems using an absolute 
encoder. When battery voltage is 2.7 V or less, the FSP Amplifier outputs an 
absolute encoder battery alarm (A.83, when using Yaskawa Sigma II motors 
with an absolute encoder) only when the FSP Amplifier's power is ON, but not 
while the FSP Amplifier is operating. 
7.3.1. Recommended
Battery
Lithium battery: ER3V, manufactured by Toshiba Battery Co. Ltd., 
3.6 V 1000 mAh or other compatible lithium battery. 
Battery kit (battery with connector) for Absolute Encoder Cable Adapter
or wiring into CN1: JZSP-BA01 
 
Battery kit (battery with connector) for wiring into CN1: JZSP-BA01-1 
For wiring into CN1, refer to the Sigma FSP Servo System User’s M anual 
(Document # YEA-SIA-FSP-3), Absolute Encoder Battery. 
 
Note: The JZSP-BA01-1 has leads 3 cm longer than the JZSP-BA01. 
