Reliance electric PSC7000, Operating Instructions Manual

Page: 52 / 84

9-4
12V Input
5V differential input
820Ω
1/2W
Terminal Block
CH* A(12)
CH* A(5)
CH* /A
Same circuit for Phase A, B & Z
22Ω
1/8W
1KΩ
1/8W
47Ω
1/8W
180pF
47Ω
1/8W
1KΩ
1/8W
180pF
Photocoupler Isolation
Fig.9-3 Interface Circuit for PG Signal Input of MCIM-2
9.2 Mark & Origin Point Signal Inputs
The mark signals and origin point signals are transmitted from sensors (encoders). The
signals with 12 to 24V can be connected to the PG module terminal block.
The interface circuit including the terminal block circuit is designed as below.
Mark input signal
Terminal Block
680Ω
1/2W
CH* MK
CH* /MK
110Ω
1/4W
560Ω
1/8W
0.047uF
110Ω
1/4W
Same circuit for origin signal input
Photocoupler Isolation
Fig.9-4 Interface Circuit for Mark Signal & Origin Point Inputs