IAI America ERC3 - Manual (Page 363)

Chapter 7
Troubleshooting
7.2 Fault Diagnosis
353
7.2 Fault Diagnosis
This section describes faults largely divided into three types as follows:
(1) Impossible operation of controller
(2) Positioning and speed of poor precision (incorrect operation)
(3) Generation of noise and/or vibration
7.2.1 Impossible operation of controller
Situation Possible cause Check/Treatment
1) Positioner Mode 1.
Pulse Train Control
Mode
Status Display LED
does not turn ON in
green even though
the power to ERC3 is
supplied in MEC
Mode 1 or MEC Mode
2.
2) Positioner Mode 2.
SV in Status Display
LEDs does not turn
ON even though the
power to PIO
Converter is supplied
in MEC Mode 2.
(1) Proper power is not supplied.
(2) Servo-on command PIO is not input
to ERC3 and PIO converter.
1) Poor contact of flat cable
(3) Occurrence of alarm.
(4) During emergency-stop.
1) Was the emergency-stop switch
released?
2) Positioner Mode 1, MEC Mode 1,
Pulse Train Control Mode
EMG on the ERC3 is not
connected.
3) Positioner Mode 2, MEC Mode 2
EMG- on the power supply
connector of PIO Converter is
disconnected.
4) MEC Mode 3
The wiring of the emergency stop
connector on Quick Teach is
disconnected.
(1) Ensure that appropriate voltage is
supplied and the wiring is in the right
condition.
[Refer to Chapter 3, 3.1.3 [1], 3.2.3
[1], 3.3.3 [1], 3.4.3 [1] and 3.5.3 [1]
wiring of Power Line and
Emergency Stop Circuit.]
(2) 1) Are the PIO cable connectors
inserted to the mating connectors
securely? Check the input signals
on the I/O monitor of the teaching
tool such as PC software.
Caution
In I/O cable conduction check, do not
widen female pins of the connectors.
Failure to follow this may cause poor
contact.
(3) Check the error code with the
teaching tool being connected and
remove the cause by referring the
alarm list.
[Refer to 7.4 Alarm List.]
(4) 1) Release the emergency stop
switch.
2) Positioner Mode 1, MEC Mode 1,
Pulse Train Control Mode
Check the connection of wires on
EMG of ERC3.
3) Positioner Mode 2, MEC Mode 2
Check the connection of wires on
PIO Converter power supply
connector EMG-.
[Refer to Chapter 3, 3.1.3 [1],
3.2.3 [1], 3.3.3 [1], 3.4.3 [1] and
3.5.3 [1] wiring of Power Line and
Emergency Stop Circuit.]
4) Check the wiring of the
emergency stop connector on
Quick Teach. If it is not to be
used, have the enclosed plug
connector to make short-circuit.