IAI America ERC3 - Manual (Page 364)

Chapter 7
Troubleshooting
7.2 Fault Diagnosis
354
Situation Possible cause Check/Treatment
1) Positioner Mode 1.
Pulse Train Control
Mode
Status Display LED
on ERC3 turns ON in
red at the power boot
in MEC Mode 1 or
MEC Mode 3.
2) Positioner Mode 2.
MEC Mode 2
ALM in Status LEDs
on PIO Converter
turns ON at the
power boot.
(1) Occurrence of alarm.
(2) 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) 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.]
(2) 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.
The host controller (PLC)
cannot control PIO (24V
DC I/O).㩷
PIO signal communication is disabled.
1) Positioner Mode 1, MEC Mode 1
Connection failure of PIO Type I/O
cable to be connected to ERC3
2) Positioner Mode 1, MEC Mode 1
Connection failure of the ribbon
cable to be connected to PIO
Converter
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.