99
V400-R1CF/R1CS
User’s Manual
Section
5
Tro
ublesho
oting
Section 5
Appendix
Troubleshooting
Connection
Reading operation
External input/output signals (TRIG, OK, NG)
RS-232C
Symptom
Cause
Refer to:
Buzzer does not sound when
power is supplied
• The power supply is not properly connected.
• Not enough power capacity/current capacity.
p.31
p.100
Symptom
Cause
Refer to:
Unable to read
• Reading prohibition is set for the relevant code.
• The minimum resolution, reading distance and contrast
are not within the effective range.
p.60
p.27,
p.100
Symptom
Cause
Refer to:
Fails to respond to signal from
TRIG
• The signal line is not properly connected.
p.29
OK and NG signals are not output • The signal line is not properly connected.
p.29
Symptom
Cause
Refer to:
Communication failure
• The communication cable is not properly connected.
• Communication specifications do not conform to upper
equipment.
• Correct communication protocol is not selected.
p.31
p.50
p.47, p.81