[Cause]
The brake torque ($BCK_GRP[group number].$BRK_TORQUE[axis number]) of the displayed group and axis has not been set.
[Countermeasure]
Any of the following countermeasures are taken to re-execut brake diagnostics.
1. If brake diagnostics are to be executed for the displayed group and axis, set the brake holding torque ($BCK_GRP[group number].$BRK_TORQUE[axis number]), then execute brake diagnostics again. For brake holding torque values of each motor, refer to the ‘BRAKE SPECIFICATIONS’ (Brake specifications) chapter of AC SERVO MOTOR DESCRIPTIONS (AC servo motor specifications manual). Enter the value in [kgf*cm].
+-------------------------------------+----------------+ | AC SERVO MOTOR DESCRIPTIONS | Drawing number | +-------------------------------------+----------------+ | AC SERVO MOTORseries DESCRIPTIONS | B-65142EN | +-------------------------------------+----------------+ | AC SERVO MOTORseries DESCRIPTIONS | B-65232EN | +-------------------------------------+----------------+ | AC SERVO MOTORiseries DESCRIPTIONS | B-65262EN | +-------------------------------------+----------------+ | AC SERVO MOTORiseries DESCRIPTIONS | B-65302EN | +-------------------------------------+----------------+
2. If brake diagnostics are not to be performed for the displayed group/axis, configure the displayed axis not to perform brake diagnostics. To configure brake diagnostics to be performed, set $BCK_GRP[group number].$CHK_AXIS[axis number] to FALSE. Make this setting and execute brake diagnostics again. Also, for dual-drive axes, the master axis
and slave axis must have matching values of $BCK_GRP[group number].$CHK_AXIS[axis number].