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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
y
Measure the power volta
g
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
g
ed.
Not dama
g
ed
Installation
condition
Check that the unit is installed securel
y
. Not loose, no pla
y
Check that the option card is inserted
securel
y
. (if an
y
)
Not loose, no pla
y
Check that the expansion rack/unit is
installed securel
y
. (if an
y
)
Not loose, no pla
y
Check that the expansion cable is
connected securel
y
and the cable is not
dama
g
ed. (if an
y
)
Not loose, not dama
g
ed
Check that the I/O module on the
expansion rack is inserted securel
y
. (if
an
y
)
Not loose, no pla
y
Input/output Measure the input/output volta
g
e at the
T1/T1S’s terminals.
The volta
g
e must be within the
specified ran
g
e.
Check the input status LEDs. The LED must li
g
ht normall
y
.
Check the output status LEDs. The LED must li
g
ht normall
y
.
Check that the terminal block is installed
securel
y
.
Not loose, no pla
y
Check that the terminal screw is not
loose and the terminal has a sufficient
distance to the next terminal.
Not loose, not contactin
g
the next
terminal
Check that the each I/O wire is not
dama
g
ed.
Not dama
g
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