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

9. CONNECTION TO SERVO OR SPINDLE
B63173EN/03
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(1)VCMD, EC (output)
VCMD and EC are the speed command signals for the servo amplifier.
For details, see (1) in Section 4.3, CONNECTION DETAILS.
(2)A, *A, B, *B, Z, *Z (input)
These signals are input from the pulse encoder. For details, see (7) A,
*A, B, *B, Z, *Z in Section 4.3, CONNECTION DETAILS.
(3)*PRDY (output)
*PRDY is the ready signal issued from the CNC to servo amplifier.
For details, see (4) *PRDY in Section 4.3, CONNECTION
DETAILS.
(4)ALM (input)
ALM is the alarm signal issued from the servo amplifier to CNC. If
the output from the servo amplifier is turned off (open, high level), the
CNC regards the servo system as being in the alarm state. When this
signal is not used, connect ALM and 0 V (the on state, low level).
24V
ALM
0V
CNC
Servo amplifier
Receiver
circuit
Electrical characteristics
Contact capacitance: 30 VDC, 16 mV or more
Leakage current between contact points when the circuit is open: 1
mA or less (voltage: 26.4 V)
Voltage drop between contact points when the circuit is closed: 2 V
or less (current: 8.5 mA, including voltage drop over the cable)
(5)*SRDY (input)
*SRDY is the ready signal issued from the servo amplifier to CNC.
When the output from the servo amplifier is on (connected, low level),
the CNC regards the servo system as being ready. The electrical
characteristics are the same as those of ALM.
(6)24VOUT (output)
24VOUT is the 24V power output from the CNC to servo amplifier.
24 V "10%. Output of up to 250 mA is possible from one JV1n
connector (up to 500 mA per unit).
When this power supply is used for the servo amplifier, the
specifications for the servo amplifier must be satisfied with the voltage
drop due to cable resistance taken into consideration.
9.5.5.3
Details of signals

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