
EDIT DATE DESIG.
Small Machine operator’s panel
connection manual
TITLE
A-83122E
3.7 Manual Pulse Generator Interface
When using other manufacture’s manual pulse generators, ensure that the following
specifications are satisfied.
Pulse width
The relationship between the HAn and HBn signals and the CNC pulses shall be as shown in
Fig. 3.7 (a).
Pulse cycle T
1
shall be 200μsec or more.
Pulse cycle T
1
/4 direction pulse shall be 50μsec or more.
Fig. 3.7 (a)
Receiver
The circuit receives signals input from the manual pulse generator shall be configured as
shown in Fig. 3.7 (b).
Fig. 3.7 (b)
Click
point
Reverse direction
Forward rotation Backward rotation
+ direction pulse
- direction pulse
Filter
Connector
Receiver’s internal
circuit
Input signal level change point (threshold)
When the voltage is 3.7V or higher, the input signal level changes from low to high.
When the voltage is 1.5V or lower, the input signal level changes from high to low.