Fanuc Serial Encoder Converter Connector Pinout

Connectors :

P2 is the serial encoder input.
Signal Pin Description
REQ 5 Request to encoder
REQ/ 6 Inverted Request
SD 12 Serial Data
SD/ 13 Inverted Serial Data
+5 8, 15 +5 V power
Batt 14 Backup power source
Gnd 1, 2, 3, 4 Ground
P1 is the output of quadrature encoder signals and commutation signals.

Pins are as follows :

Signal Pin Description
A 7 Quadrature A Output
A/ 6 Inverted A Output
B 8 Quadrature B Output
B/ 12 Inverted B Output
Z 14 Quadrature Index Output
Z/ 13 Inverted Index Output
U 1 commutation signal
V 2 commutation signal
W 3 commutation signal
OK 4 Encoder signal OK
G 15 Power Ground
+5V 5 +5 Volts Power Supply
LED D2 (green) indicates the converter has power.

LED D1 (red) indicates the converter is not receiving a valid signal from the encoder.

Resolution Switch Settings :
1 2 3 resolution Counts/Rev
ON ON ON 32K (32768)
OFF ON ON 64K (65536)
ON OFF ON 128K (131072)
OFF OFF ON 256K (262144)
ON ON OFF 1024K (1048576)

Switch 6 off for Absolute (A) encoders
Switch 7 off to invert Hall (commutation) signals

Quadrature Rate Switch Settings :
8 9 MHz
OFF OFF 0.5
OFF ON 1
ON OFF 2
ON ON 4

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