User`s manual

3-44 Motion Mate™ DSM314 for Series 90™-30 PLCs User's Manual – January 2001 GFK-1742A
3
Differential +/- 10v Analog Inputs
Circuit
Identifier
Digital Servo
Axis 1, 2
Circuit Function
Analog Servo Axis 1-4
and Aux Axis 2-4
Circuit Function
Signal Name
(X = A, B, C, or
D Connector)
Faceplate
Pin
Auxiliary
Terminal
Board
Servo
Terminal
Board
AIN1 IR Phase Current (+) Faceplate Analog In (+) AIN1P_X 7 7 N/C
IR Phase Current (-) Faceplate Analog In (-) AIN1M_X 25 25 N/C
AIN2 IS Phase Current (+) Faceplate Analog In (+) AIN2P_X 8 8 N/C
IS Phase Current (-) Faceplate Analog In (-) AIN2M_X 26 26 N/C
I/O Type: Differential +/- 10v Analog Inputs
Circuit Type: Differential Input
Input Impedance: 102K ohms common mode with respect to faceplate connector 0v
204K ohms differential
Maximum Input Voltage: +/- 15 v common mode with respect to faceplate connector 0v
+/- 20 v differential
Resolution: 15 bits
Linearity: 13 bits
Input Offset: +/- 1.0 millivolt
Gain Factor: +/- 10.0v = +/- 32,000 counts
Gain Accuracy: +/- 0.5 %
Update Rate:
2 milliseconds + PLC sweep time when data is reported to PLC
%AI table.
Notes: Use faceplate 0v pins for common mode reference.
IN +
IN -
OP-AMP
0V
TO A/D
MULTIPLEXER
102 K
102 K
49.9 K
49.9 K