Code SP0061: Excessive semi-closed loop/closed loop position error alarm

Amplifier LED display: 61 Also shown as: SP0061 (15i), SP9061 (30i/31i/32i), SP9061 (0i-D) Cause: A magnetic pole detection error occurred. This spindle alarm is issued for the BiS Series spindle motors (synchronous spindle motors). Troubleshooting when this alarm is issued When this alarm is issued at the start, possible causes are all of (a) to (f) below. When the machine has been operating normally, possible causes are (d), (e), and (f). (a) There is a setting error in a parameter (number of teeth of a motor sensor or number of phases of a motor). Check whether the settings of the parameters of the number of teeth of the motor sensor (bits 2, 1, and 0 of parameter No. 4011 and parameter No. 4334) and the number of phases of the motor (bits 7 and 3 of parameter No. 4011 and parameter No. 4368) are correct. (b) The phase sequence of the motor power lead differs from that of connection of motor sensor feedback. (c) The motor power lead is not connected. (d) The motor is locked and cannot move. Alternatively, the excitation current is low and the motor cannot move smoothly due to the effect of friction. Detect the magnetic pole when the motor can move smoothly. (e) The motor sensor or rotor shaft slips and the phase relationship between the motor sensor and rotor changes. (f) A count error occurs in the motor feedback signal due to the effect of noise.