YASKAWA S Series User Manual page 99

Application •
5.8.1 Holding Brake Interlock Signal
5.8 Appropriate Applications
5.8.1 Holding Brake Interlock Signal
■ Setup Procedure
Motor Stopped
SV ON SV_OFF
command
BK signal
(Drive ON)
tB: Brake Time (set from 0 to 50 ms in Cn-0012)
Timing with the Servo OFF, main power OFF, and an alarm
Motor Running
• Servo OFF (SV_OFF command)
• Alarm occurs
• Main power supply OFF
• Drive ON
• B K signal
• Motor rotation speed
This output signal can be output for interlocking motor circuit power status and motor rotation
speed.
The brake signal is output from 1CN-1(2). Delay time tB ( X 10 ms) from the brake turns ON until
the Servomotor drives OFF can be set in user constant Cn-0012. The following shows the Servo
ON signal and power supply timing.
Table 5.5 S e r v o ON Command and Main Circuit Power Supply Timing
Servo ON Command Timing
0 to 35 ms
Servo OFF
Servo ON
Brake OFF
OFF I O N
Speed r/min
Cn-0015
speed r/min
Main Circuit Power Supply Timing
Main Power
supply
BK signal
Brake ON
tg
P
(Drive ON)
tg: Brake Time (set from 0 to 50 ms in Cn-0012)
Servo OFF
Servo O N '
Normal
Alarm
ON
OFF
OFF
ON
(DB braking)
0
5 -18
ON
1 O F F
5 to 75 ms
tB
OFF
ON I
When this time exceeds
Cn-0016 x 10 ms, the BK sig-
nal turn OFF regardless of the
motor speed.