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Chapter 9. TROUBLESHOOTING
9-9
Upper Display Lit LEDs Lower Display Motor Action Remarks
C A .C L OT2 CCW
↓
C A .O P OT1 CW
Upper Display Lit LEDs Lower Display Motor Action Alarm Display Cause
C A .C L OT2 CCW A L 1 2
↓
C A .O P OT1 CW
C A .C L OT2 CCW A L 1 2
↓
C A .O P OT1 CW
C A .C L OT2 CCW A L 1 1
A L 1 2
C A .C L OT2 CW A L 1 2
↓
C A .O P OT1 CCW
C A .C L OT2 CW A L 1 1
A L 1 2
C A .C L OT2 CW A L 1 2
↓
C A .O P OT1 CCW
■ Normal wiring for direct motor rotation
Readout decreases
from 1000 to 500 and
stabilizes.
Readout increases
from 500 to 9500 and
stabilizes.
If the motor rotates CCW
when OT2 lights, motor
terminals 1 and 2 are
wired for direct rotation.
■ Normal wiring for reverse motor rotation
Upper Display Lit LEDs Lower Display Motor Action Remarks
C A .C L OT2 CW
↓
C A .O P OT1 CCW
Readout decreases
from 9000 to 500 and
stabilizes.
Readout increases
from 500 to 9500 and
stabilizes.
If the motor rotates CW
when 1↔ 2 and G ↔ Y
are reversed and OT2
lights, motor terminals 1
and 2 are wired for
reverse rotation.
■ Alarm display caused by wrong wiring and causes
G↔Y
reversed
T↔G
reversed
T↔Y
reversed
1↔2
reversed
1↔2
reversed,
T↔G
reversed
1↔2
reversed,
T↔Y
reversed
Display increases and
stabilizes.
Display decreases and
stabilizes.
Display decreases and
stabilizes.
Display stabilizes at
9999.
Display stabilizes at
9999.
Display increases and
stabilizes.
Display decreases and
stabilizes.
Display stabilizes at
9999.
Display decreases and
stabilizes.
Display stabilizes at
9999.