FANUC Power Mate i-MODEL H CONNECTION MANUAL (HARDWARE)

10. CONNECTION TO PERIPHERALS
B63173EN/03
394
In the Power Mate iH, an external pulse generator with a singlephase
input can be connected instead of the manual pulse generator
manufactured by FANUC.
The relationship between the HAn and HBn signals and the Power Mate
pulses shall be as shown in Fig. 10.3.4 (a).
Pulse cycle T
1
shall be 200 msec or more. Pulse cycle T
1
/4 shall be 50 msec
or more.
t
1
HAn
HBn
T
1
4
T
1
T
1
44
T
1
direction
pulse
+ direction
pulse
Forward rotation
Click point
Reverse direction
Backward rotation
Fig. 10.3.4 (a)
A circuit configuration shown in Fig. 10.3.4 (b) is recommended for the
output signals of the external pulse generator.
Recommended circuit
V
CC
to CNC
0V
300 W
Fig. 10.3.4 (b)
Input signal level change point (threshold)
When the voltage is 3.7 V or higher, the input signal level changes
from low to high.
When the voltage is 1.5 V or lower, the input signal level changes from
high to low.
10.3.4
Interface of the
External Pulse
Generator (for Power
Mate iH)
D Pulse width
D Recommended output
signal circuit
D Threshold voltage of the
Power Mate receiver

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