User guide

A-4
Appendix
IL-E
When an error occurs, an error message appears on the sensor amplifier.
Error Displays and Corrective Actions
Reference
• If an error occurs, the judgment output changes to the error status and
the alarm output turns OFF.
• “5. Output State” (page 4-14)
•
When [ ErC ] is displayed, all judgment outputs and alarm outputs turn OFF to
protect the outputs.
• When the error display is other than [ErC] or [ErE], the analog voltage
output is 5.5 V and the analog output current is 3.0 mA.
Error displays Error contents Corrective actions
Head error
• The sensor head is not
connected.
• The head cable is damaged.
• The sensor head is
damaged.
• A sensor head is connected
that is incompatible with this
amplifier.
• Check the sensor head connection.
• Check whether the head cable is damaged.
• Check the connection of the head cable to the
connector.
• After checking the above matters, turn the
power ON again.
• Check the models of the sensor head and
sensor amplifier.
Transmitter laser error
Laser inside head is
damaged.
Replace the head.
Head model error
A head incompatible with this
amplifier is connected.
Check the head and amplifier models.
Overcurrent error
Overcurrent beyond
specification is flowing
through the judgment output
and alarm output.
• Wire the unit correctly.
“Output Circuit Diagram” (page 5-5)
• Check the load and reduce the current to be
within the specification range.
• Check that the output wire is not touching other
wires or the frame.
EEPROM error
Reading/writing the
nonvolatile memory
(EEPROM) storage data
failed.
Turn the power on again.
Perform the initial reset.
“Initial Reset (Initialize)” (page 3-8)
Data has been written in the
nonvolatile memory (EEPROM)
over 1 million times and
malfunction occurred.
To save the setting values when the power is
turned OFF, replace the sensor amplifier.
When using the zero shift function frequently, make sure that the
zero shift value is not saved in the nonvolatile memory (EEPROM).
“13. Zero Shift Value Memory Function” (page 4-38)
Communication
error
Communication cannot be
established between the
added sensor amplifiers.
Make the setting for the added sensor amplifiers
again after the power is turned OFF.
“Mounting the Sensor Amplifier” (page 2-2)
LASER
BANK
0
1
2
3
HI
LO
R.V.
ANALOG
HI SHIFT
ZERO SHIFT
TIMING
LO
'T*
GO
HOLD CALC CHECK
LASER
BANK
0
1
2
3
HI
LO
R.V.
ANALOG
HI SHIFT
ZERO SHIFT
TIMING
LO
'T*
GO
HOLD CALC CHECK
.#5'T
V;2'
LASER
BANK
0
1
2
3
HI
LO
R.V.
ANALOG
HI SHIFT
ZERO SHIFT
TIMING
LO
'T*
GO
HOLD CALC CHECK
LASER
BANK
0
1
2
3
HI
LO
R.V.
ANALOG
HI SHIFT
ZERO SHIFT
TIMING
LO
GO
HOLD CALC CHECK
'T%
LASER
BANK
0
1
2
3
HI
LO
R.V.
ANALOG
HI SHIFT
ZERO SHIFT
TIMING
LO
GO
HOLD CALC CHECK
'T'
Reference

LASER
BANK
0
1
2
3
HI
LO
R.V.
ANALOG
HI SHIFT
ZERO SHIFT
TIMING
LO
ALIGNMENT
'T%Q/
GO
HOLD CALC CHECK