
MAINTENANCE MANUAL
236
STE 85357
7.3.4
Replacement of Switching Power Supply Unit
The life of the switching power supply unit (DC5 V/DC24 V) used in the robot
controller differs with the operating conditions. This unit uses an aluminum
electrolytic capacitor, and if the load current is large, the running time is long and the
ambient temperature is high, the life will reduce.
As the life varies largely with the user's operating conditions (5 ~ 10 years), replace
the power supply unit every five (5) years for preventive maintenance.
[ PS1 replacement procedures]
1) Turn off the main power switch.
2) Turn off the power breaker.
3) Remove eleven(11) cross truss head screws (M3 x 6) that secure the cover, and
then remove the cover from the main body.
Fig. 7.6 Removal of cover (TS3000, TS3000E)
cross truss head screws
(M3 x 6)