Toshiba GRZ100 B Series, Instruction Manual, Page: 261 / 447

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260
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6 F 2 S 0 8 4 6
The software name is indicated on the memory device on the module with letters such as
GS1ZM1-
∗∗∗
, GS1ZF1-
∗∗∗
, etc.
CAUTION
When handling a module, take anti-static measures such as wearing an earthed
wrist band and placing modules on an earthed conductive mat. Otherwise, many
of the electronic components could suffer damage.
CAUTION
After replacing the SPM module, check all of the settings including the PLC
and IEC103 setting data are restored the original settings.
The initial replacement procedure is as follows:
•
Switch off the DC power supply.
•
Disconnect the trip outputs.
•
Short circuit all AC current inputs and disconnect all AC voltage inputs.
Hazardous voltage can be present in the DC circuit just after switching off the
DC power supply. It takes approximately 30 seconds for the voltage to
discharge.
•
Unscrew the relay front cover.
Replacing the Human Machine Interface Module (front panel)
•
Open the front panel of the relay by unscrewing the binding screw located on the left side of
the front panel.
•
Unplug the ribbon cable on the front panel by pushing the catch outside.
•
Remove the two retaining screws and one earthing screw on the relay case side, then detach
the front panel from the relay case.
•
Attach the replacement module in the reverse procedure.
Replacing the Transformer Module
•
Open the right-side front panel (HMI module) by unscrewing the two binding screws located
on the left side of the panel.
•
Open the left-side front panel (blind panel) (*) by unscrewing the two binding screws located
on the right side of the panel.
(*) This blind panel is attached only to models assembled in the type B case.
•
Detach the module holding bar by unscrewing the binding screw located on the left side of the
bar.
•
Unplug the ribbon cable on the SPM by nipping the catch.
•
Remove the metal cover by unscrewing the binding screw located at the top and bottom of the
cover.
•
Pull out the module by grasping the handles.
•
Insert the replacement module in the reverse procedure.
Replacing other modules
•
Open the right-side front panel (HMI module) by unscrewing the two binding screws
located on the left side of the panel.
•
Open the left-side front panel (blind panel) (*) by unscrewing the two binding screws located
on the right side of the panel.
WARNING