HNC Electric HSD7-E Series - Brake Output Time Settings; Servo OFF and Motor Stop Methods in Alarm

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5.9.3 Output Time of Brake Control Output (/BK) Signal when Servo Motor Stopped
When the servo motor is stopped, the /BK signal will also be OFF when the servo OFF (SV_OFF) command is
input. By setting the servo OFF delay time (Pn506), the time when the SV_OFF command is input to the actual
motor is not energized can be changed.
Pn506
Brake Command-Servo OFF Delay Time
Speed Position Torque
Setting range
Setting Unit
Factory setting
Effective time
Category
0〜 10000
1ms
0
Effective
immediately
Setup
 When used for vertical shafts and the like, the dead
weight or external force of the mechanical moving
part may cause the machine to move slightly. By
setting the servo OFF delay time (Pn506), the motor
can be in an energized state after the brake is
activated. To eliminate slight movement of the
machine.
 This parameter is used to set the time when the servo
motor is not energized when it is stopped.
Important
When an alarm occurs, regardless of this setting, the servo motor immediately enters a non-energized state.
At this time, the machine sometimes moves before the brake is activated due to the
dead weight or external force of the movable part of the machine.
5.9.4 Output Time of Brake Control Output (/BK) Signal in Servo Motor Rotation
When an alarm occurs during the rotation of the servo motor, the servo motor stops and the /BK signal is OFF.
At this time, the output time of the /BK signal can be adjusted by setting the brake command output speed
value (Pn507) and the servo OFF-brake command waiting time (Pn508).
(Note) When the stop method for alarm occurs is zero speed stop, the setting of Pn506 (brake command-servo OFF delay time)
shall be followed after the motor stops.
Pn507
Brake command output speed value
Speed Position Torque
Setting range
Setting Unit
Factory setting
Effective time
Category
0〜10000
1min
-1
100
Effective
immediately
Setup
Pn508
Servo OFF- Brake Command Wait Time
Speed Position Torque
Setting range
Setting Unit
Factory setting
Effective time
Category
10〜100
10ms
50
Effective
immediately
Setup
When any of the following conditions is met, the brake will act.
When the motor speed is less than the set value of Pn507 after the motor is not energized

When the set time of Pn508 elapses after the motor enters the non-energized state
Servo OFF (SV_OFF)
command input
/BK signal
Electrical machine
energized state
Servo OFF
ON (brake
released)
The motor is
energized
OFF (brake action)
The motor is
not energized
Servo ON
Servo OFF
Servo ON
Motor speed
Electrical machine
energized state
/BK signal
Servo OFF
(SV_OFF) command
input or alarm power
OFF
Energized
Not energized
Rotating servo motor: Pn507
Linear servo motor: Pn583
ON (brake
released)
OFF (brake action)
DB stop or free running stop
/BK signal
Servo OFF
(SV_OFF) command
input or alarm power
OFF
Servo ON
Servo OFF
Electrical machine
energized state
Motor speed
Energized
Not energized
Rotating servo motor: Pn507
Linear servo motor: Pn583
ON (brake
released)
OFF (brake action)
DB stop or free running stop