Mitsubishi Electric MELSERVO-J4 Instruction Manual page 69

1. TROUBLESHOOTING FOR SERVO AMPLIFIER (DRIVE UNIT)
Alarm No.: 63 Name: STO timing error
Alarm content
Detail
Detail name
No.
63.1 STO1 off (1) STO1 was turned off
63.2 STO2 off (1) STO2 was turned off
63.5 STO by (1) STO of the functional
functional safety
unit
Alarm No.: 64 Name: Functional safety unit setting error
Alarm content
Detail
Detail name
No.
64.1 STO input error (1) When a functional
64.2 Compatibility (1) When a functional
mode setting
error
64.3 Operation mode (1) The speed observation
setting error
STO input signal turns off while the servo motor is rotating.
Cause
Check if STO1 is off
(enabled) under the (enabled).
following speed
conditions.
1) Servo motor speed:
50 r/min or more
2) Linear servo motor
speed: 50 mm/s or
more
3) Direct drive motor
speed: 5 r/min or
more
Check if STO2 is off
(enabled) under the (enabled).
following speed
conditions.
1) Servo motor speed:
50 r/min or more
2) Linear servo motor
speed: 50 mm/s or
more
3) Direct drive motor
speed: 5 r/min or
more
Check if STO of the
safety unit was turned functional safety unit is
off (enabled) under the off (enabled).
following speed
conditions.
1) Servo motor speed:
50 r/min or more
2) Linear servo motor
speed: 50 mm/s or
more
3) Direct drive motor
speed: 5 r/min or
more
A setting of the servo amplifier or functional safety unit was incorrect.
Cause
Check the connection
safety unit is used, a of the CN8 connector.
connector is connected
to CN8 of the servo
amplifier.
Check the parameter
safety unit is used, the setting.
J3 compatibility mode is
set.
Check if the parameter
function turned to be setting is correct.
enabled in the fully
closed loop control
mode, linear servo
motor control mode, or
DD motor control mode.
Check method Check result
It is off (enabled).
It is off (enabled).
It is off (enabled).
Check method Check result
It is connected.
The J3 compatibility
mode is set.
The setting is
incorrect.
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Action Target
Turn on STO1 [A]
(disabled). [B]
[WB]
[RJ010]
[GF]
Turn on STO2
(disabled).
Turn on STO [A]
(disabled). [B]
[GF]
Action Target
Turn off the control [A]
circuit power supply [B]
of the servo [GF]
amplifier, and then
remove the
connector of CN8.
The J3 compatibility [B]
mode is not
supported with the
functional safety
unit. Set it correctly.
Set it correctly. [A]
[B]
[GF]