
B–63783EN/01
6. CONNECTION OF I/O UNITS TO
MACHINE INTERFACE
87
NOTE
1 In the above diagram, letter n stands for a channel number (where n = 1, 2, 3, or 4).
2 Either voltage input or current input can be selected for each channel. If current input is
selected, be sure to strap JMPn and INPn.
3 The conductors of the connector cable should be shielded twisted pairs.
4 In the above diagram, the shielding for each channel is separately connected to FGNDn, all of
which are connected to FGND. However, as the frame ground, you may connect each shielding
directly to a cable clamp without using FGNDn.
When the voltage supply (current supply) has a GND pin as shown in the figure, connect the
COMn pin to the GND pin. When not, connect INMn to COMn on the analog input module.
This section describes the analog input signal ratings for expansion
module D.
Item Specification Remarks
Number of input
channels (NOTE)
4
Analog input –10 to +10 VDC (with input re-
sistance of 4.7 MΩ)
–20 to +20 mADC (with input re-
sistance of 250 Ω)
Either voltage input
or current input is
selectable separate-
ly for each channel.
Digital output
(NOTE)
12–bit binary Twos complement
representation
Supported input/
output
Analog input
Digital output
+10V +2000
+5V or +20mV +1000
0V or 0mA 0
-5V or -20mA -1000
-10V -2000
Resolution 5 mV or 20 µA
Overall precision Voltage input: "0.5%
Current input: "1%
In reference to the
full–scale reading
Maximum input volt-
age/current
±15V/±30mA
Minimum conver-
sion time (NOTE)
Ladder scan cycle by the con-
nected CNC
Number of occupied
input/output points
(NOTE)
DI = 3 bytes, DO = 2 bytes
6.3.13
Analog Input Signal
Ratings