Main power
PWM output
Electromagnetic
brake release
signal output
(BRK)
Servo readiness
output (RDY)
Microcontroller
state
Note 1: If main circuit voltage is less than 170V/330V(for 220V/400V series), the
undervoltage fault occurs and the electrical level of the servo fault (ALM) output increases.
Note 2: If the drive temperature is less than 45 °C, the fan stops. If the IGBT temperature is
higher than 45 °C, the fan stops after the microprocessor stops.
Note 3: The output delay of the electromagnetic brake release signal can be set through
P3.57. If the speed slows down under the setting of P3.58 (30r/min by default) during the
time specified by P3.57, the BRK signal becomes invalid.
Note 4: The actual electrical levels corresponding to valid I/O states can be set through
P3.00–P3.15.
Note 1
Main circuit power lost
Program stopped running
Servo with output
Motor brake closed
Motor brake
released
Servo without output
Fan signal Fan stopped runningFan running
Note 2
Note 3
Valid Invalid
Program running
Note 4
Dynamic brake
state
PWM output
Electromagnetic
brake release
signal output
(BRK)
Servo readiness
output (RDY)
Servo fault output
(ALM)
Servo enabling (SON)
Note 1: Whether to immediately start the dynamic brake can be set through P4.30.
Note 2: The servo locking time after braking can be set through P3.56.
Note 3: The actual electrical levels corresponding to valid I/O states can be set through
P3.00–P3.15.
No fault alarm
Servo with output
Motor brake closed
Motor brake released
Servo without output
Dynamic brake switched onNote 1
Note 2
Normal
Dynamic brake
switched off
Enabled Disabled
Note 3