FL20-C Series
114
2.
Servo drive becomes disabled status, and after delay time of 2008h-04h .
OFF
OFF
ON
ON
T1
OFF
OFF
OFF
ON
OFF
OFF
ON
OFF
300ms
100ms
Delay time
Delay time
Servo and motor
enable status
Electromagnetic
braking signal
Enable
signal
Braking status
Fig 7-1-4 Electromagnetic brake sequence diagram
Note: servo enabled is off, T1 is the smaller value between 2008h-04h and the time taken
by speed decreasing to 2008h-11h.
7.1.4 Setting the Overtravel Limit Function
The overtravel limit function forces movable machine parts to stop if they exceed the allowable
range of motion. The function adopts a limit switch or a photoelectric switch.
1.
Hardware overtravel protection function
As soon as the servo drive detects the on/off signal from the limit switch, it will force the speed
in the present direction to turn to 0, but it does not work for the speed of opposite direction.
Servo
motor
Reverse rotation direction
Servo
drive
Limit switch
R-INH
F-INH
Forward rotation direction
Limit switch
Fig 7-1-5 Overtravel Limit Function
(1) Input signal
Signal name
Code
Remarks
Forward run prohibited
F-INH
Forbidden servo drive forward run.
Reverse run prohibited
R-INH
Forbidden servo drive reverse run.
(2) Setting related parameter
2008h-12h
Forward run prohibited PP PV PT CSP CSV CST HM
Setting range
Setting unit
Mfr’s value
When enabled
0: Prohibited invalid
1: Prohibited valid
N/A
1
Effective
Immediately
Function code
Mapping
Data type
Accessibility
So-17
N
UINT16
RW
