YASKAWA GA700 Technical Manual page 299

Code Name
E5 MECHATROLINK
Watchdog Timer Err
Note:
• If detected, H2-xx = 10 [MFDO Function Select = Minor Fault] will be ON.
• If detected, the drive will operate the motor according to the stop method set in F6-25 [MECHATROLINK Watchdog Error Sel].
Code Name
EF FWD/REV Run Command
Input Error
Note:
• The motor ramps to stop when EF is detected.
• If detected, H2-xx = 10 [MFDO Function Select = Minor Fault] will be ON.
Code Name
EF0 Option Card External Fault
Note:
• Detected if the alarm function on the external device side is being operated.
• If detected, H2-xx = 10 [MFDO Function Select = Minor Fault] will be ON.
• If detected, the drive will operate the motor according to the stop method set in F6-03 [Comm External Fault (EF0) Select].
Code Name
EF1 External Fault (terminal S1) The multi-function digital input terminal
Note:
If detected, H2-xx = 10 [MFDO Function Select = Minor Fault] will be ON.
Code Name
EF2 External Fault (terminal S2) The multi-function digital input terminal
Note:
If detected, H2-xx = 10 [MFDO Function Select = Minor Fault] will be ON.
YASKAWA ELECTRIC SIEP C710617 01B YASKAWA AC Drive GA700 Technical Manual
Cause
A watchdog circuit exception was
detected while receiving data from the
controller.
Cause
A forward command and a reverse
command were input simultaneously for
longer than 500 ms.
Cause
The communication option card
received an external fault from the
controller.
Programming error occurred on the
controller side.
Cause
S1 triggered an external fault via an
external device.
The wiring is incorrect.
External fault [H1-01 = 2C to 2F] is
assigned to MFDI terminal S1 that is not
in use.
Cause
S2 triggered an external fault via an
external device.
The wiring is incorrect.
External fault [H1-02 = 2C to 2F] is
assigned to MFDI terminal S2 that is not
in use.
6.5 Minor Faults/Alarms
Possible Solution
Check the MECHATROLINK cable connection. If
this error occurs frequently, check the wiring and
minimize the effects of noise in accordance with
the following manuals:
• MECHATROLINK-II Installation Guide
(MECHATROLINK Members Association,
manual number MMATDEP011)
• MECHATROLINK-III Installation Manual
(MECHATROLINK Members Association,
publication number MMATDEP018)
Possible Solution
Check the sequence and confirm that the forward
and reverse inputs are not set simultaneously.
Possible Solution
1. Identify the device that triggered the external
faults and remove the cause.
2. Clear the external fault input from the
controller.
Check the operation of the controller program.
Possible Solution
1. Identify the device that triggered the external
faults and remove the cause.
2. Clear the external fault input in the multi-
function digital input.
Connect the signal line to multi-function digital
input terminal S1 properly.
Set the multi-function digital input properly.
Possible Solution
1. Identify the device that triggered the external
faults and remove the cause.
2. Clear the external fault input in the multi-
function digital input.
Connect the signal line to multi-function digital
input terminal S2 properly.
Set the multi-function digital input properly.
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