Periodic Checks - Toshiba PROSEC T1-16S User Manual

9. Maintenance and Checks

9.3 Periodic checks

!
CAUTION
Check the T1-16S based on the following items every six months. Also perform
checks when the operating environment is changed.
Item
Power supply
Installation
condition
Input/output
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T1-16S User's Manual
1. Pay special attention during the maintenance work to minimize the risk
of electrical shock.
2. Turn off power immediately if the T1-16S or related equipment is
emitting smoke or odor. Operation under such situation can cause fire
or electrical shock.
Measure the power voltage at the T1-
16S's power terminals.
Check that the terminal screw is not
loose.
Check that the power cable is not
damaged.
Check that the unit is installed
securely.
Check that the I/O module is inserted
securely. (if any)
Check that the expansion rack/unit is
installed securely. (if any)
Check that the expansion cable is
connected securely and the cable is
not damaged. (if any)
Check that the I/O module on the
expansion rack is inserted securely. (if
any)
Measure the input/output voltage at
the T1-16S's terminals.
Check the input status LEDs.
Check the output status LEDs.
Check that the terminal block is
installed securely.
Check that the terminal screw is not
loose and the terminal has a sufficient
distance to the next terminal.
Check that the each I/O wire is not
damaged.
Check Criteria
85 - 132/170 - 264Vac (AC PS)
20.4 - 28.8Vdc (DC PS)
Not loose
Not damaged
Not loose, no play
Not loose, no play
Not loose, no play
Not loose, not damaged
Not loose, no play
The voltage must be within the
specified range.
The LED must light normally.
The LED must light normally.
Not loose, no play
Not loose, not contacting the
next terminal
Not damaged
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