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Batteries should be disposed of according to the user's in-house regulations.
•
NEVER drop the batteries into fire. NEVER short-circuit, charge,
disassemble or heat them. Otherwise, liquid leakage or rupture may be
caused.
3.3.4
Replacement of Switching Power Supply Unit
The life of the switching power supply unit (DC5 V/DC24 V) used in the TS2000
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.
[Replacement procedures]
1)
Turn off the main power switch.
2)
Turn off the power breaker.
3)
Remove the cover from the controller.
4)
Remove all connectors in the control panel, which are linked to the X8HC,
X8HS (2 pcs.) and X8HP printed boards. (For the position of each printed
board, see Fig. 3.1.)
5)
Remove the X8HC, X8HN (X8HI), X8HS (2 pcs.) and X8HP printed boards
from the body.
6)
Disconnect the cable connecting the power module and the cable between
PS1 and mother board.
!
CAUTION
– 3–9 –
MAINTENANCE MANUAL
STE 73872
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