www.a-ts.cn A-TS Technology RT20
25
GND
43 Reference level, signal ground
Shielding
ground
PE
50 Shielding / protection of the ground
3.2.4 Encoder terminal CN4/CN5 definition
The RT20-PA series drive supports two encoder interfaces. The user can
choose to use them according to the actual situation, or the encoder failure
alarm may appear.
1) CN4 definition
This terminal is used to input the servo motor encoder signal. It can be
connected to absolute encoders only.
Table 3-4 The absolute encoder terminal definition
Pin No.
Signal Name
Description
1
EC-5V
Encoder power output, 5V±5%
2
EC-GND
Encoder power/signal ground, 0V
3
CLK+
Serial clock (used when connecting to
Nikon/Biss/Endat encoder)
4
CLK-
5
SDATA+
Bidirectional Serial Data
6
SDATA-