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6 WIRING
6.2 External Input Connection Connector of the RD77MS
■
Interface between manual pulse generator/incremental synchronous encoder (Voltage-output
type/open-collector type)
*1 Set "1: Voltage-output/open-collector type" in "[Pr.89] Manual pulse generator/Incremental synchronous encoder input type selection" if
the manual pulse generator/incremental synchronous encoder of voltage-output/open-collector type is used.
The default value is "1: Voltage-output/open-collector type".
*2 Set the signal input form in "[Pr.24] Manual pulse generator/Incremental synchronous encoder input selection".
*3 The 5 V DC power supply from the Simple Motion module must not be used if a separate power supply is applied to the manual pulse
generator/incremental synchronous encoder. If a separate power supply is used, use a stabilized power supply of voltage 5 V DC.
Anything else may cause a failure.
*4 Be sure to connect the 0 V (-) of the manual pulse generator/incremental synchronous encoder and the SG of the Simple Motion
module.
Wiring example for manual pulse generator/incremental synchronous encoder
Wire the manual pulse generator/incremental synchronous encoder of differential output type and voltage output type/open-
collector type as follows.
Switch the input type of RD77MS by "[Pr.89] Manual pulse generator/Incremental synchronous encoder input type selection".
It is recommended to use the external 5 V power supply (5 V DC±5%) for the power supply of the manual pulse generator/
incremental synchronous encoder. When using the external power supply, do not connect with the 5 V terminal of RD77MS.
When using the internal power supply, connect the 5 V terminal of RD77MS and the 5 V (+) of the manual pulse generator/
incremental synchronous encoder.
In either case, connect the 0 V (-) of the manual pulse generator/incremental synchronous encoder and the SG of RD77MS.
Do not use the 5 V terminal of RD77MS except for connecting the manual pulse generator/incremental synchronous encoder.
It may cause a failure. Also, do not connect the manual pulse generator/incremental synchronous encoder whose current
consumption exceeds 200 mA.
Input or
Output
Signal name
Pin No.
Wiring example
When using the external power supply
(Recommended)
When using the internal power
supply
Input
Manual pulse
generator, A-
phase/PULSE
HA
(A)
1B19
Manual pulse
generator, B-
phase/SIGN
HB
(B)
1B20
Power
supply
5 V
1A15
1B15
1A14
1B14
Internal circuit
A
Power supply
5 V DC
External power
supply 5 V DC
B
Manual pulse
generator/
Incremental
synchronous
encoder
5 V
SG
5 V
SG
+
-
+
-
Internal circuit
A
Power supply
5 V DC
B
Manual pulse
generator/
Incremental
synchronous
encoder
5 V
SG
+
-