Wiring Examples With An External Device - Mitsubishi Electric NZ2GF2S-60MD4 User Manual

Wiring examples with an external device

The following figures show the external wiring.
If the circuit between the terminals of unused channels is kept open and the conversion is enabled, an
undefined digital value may be output. To avoid this phenomenon, set CH Input type/range setting (address:
0100H to 0103H) of the unused channels to Conversion disable (0H). ( Page 117 Input type/range
setting)
Wiring examples
■Voltage input
Signal source: -10 to 10V
*1
*2
*1 For the wire, use the 2-core shielded twisted pair cable.
*2 Always ground the shield wire of the wire in each channel.
*3 Indicates the input resistance of the multiple input module.
■Current input
Signal source: 0 to 20mA
*1
*2
*1 For the wire, use the 2-core shielded twisted pair cable.
*2 Always ground the shield wire of the wire in each channel.
*3 Indicates the input resistance of the multiple input module.
*4 For the current input, always connect the SH1 terminal and SH2 terminal.
5 INSTALLATION AND WIRING
48
5.4 Wiring
V+/A
SH1
SH2
250Ω
I+
V-/B
b
V+/A
SH1
*4
*3
SH2
I+ 250Ω
V-/B
b
*3
Filter circuit
1MΩ
Filter circuit
1MΩ
A/D
conversion
A/D
conversion