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T1/T1S User’s Manual
9. Maintenance and Checks
9.3 Periodic checks
Check the T1/T1S based on the following items every six months. Also perform checks
when the operating environment is changed.
Item Check Criteria
Power suppl
Measure the power volta
e at the
T1/T1S’s power terminals.
85 - 132/170 - 264 Vac (AC PS)
20.4 - 28.8 Vdc (DC PS)
Check that the terminal screw is not
loose.
Not loose
Check that the power cable is not
dama
ed.
Not dama
ed
Installation
condition
Check that the unit is installed securel
. Not loose, no pla
Check that the option card is inserted
securel
. (if an
)
Not loose, no pla
Check that the expansion rack/unit is
installed securel
. (if an
)
Not loose, no pla
Check that the expansion cable is
connected securel
and the cable is not
dama
ed. (if an
)
Not loose, not dama
ed
Check that the I/O module on the
expansion rack is inserted securel
. (if
an
)
Not loose, no pla
Input/output Measure the input/output volta
e at the
T1/T1S’s terminals.
The volta
e must be within the
specified ran
e.
Check the input status LEDs. The LED must li
ht normall
.
Check the output status LEDs. The LED must li
ht normall
.
Check that the terminal block is installed
securel
.
Not loose, no pla
Check that the terminal screw is not
loose and the terminal has a sufficient
distance to the next terminal.
Not loose, not contactin
the next
terminal
Check that the each I/O wire is not
dama
ed.
Not dama
ed
!
CAUTION
1. Pay special attention during the maintenance work to minimize the risk of
electrical shock.
2. Turn off power immediately if the T1/T1S or related equipment is emitting
smoke or odor. Operation under such situation can cause fire or electrical
shock.
CTi Automation - Phone: 800.894.0412 - Fax: 208.368.0415 - Web: www.ctiautomation.net - Email: info@ctiautomation.net
