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Appendix A
A.2 I/O Connections and Wiring
FUH1010 IP65 NEMA 4X Precision Volume
Operating Instructions, 01/2013, A5E32122003-AA
171
Note
Relays shown in Power OFF position, which is the same as the alarm assertion position.
*7ME39400AL03 Mercury Relay only available with Normally Open.
Table A- 7
Input/Output Wiring (TB4) - 7ME39400AL03 and 7ME39400AL04 Expanded I/O Module
Pin # Signal
Definition
Description
Single CH
Function
Dual CH
Function
Dual Path
Function
Dual Path
Only
Function
Quad Path Only
Function
1
AUX
I01+
Isolated Loop
Supply Io1
Io1 External
Power
+30gV max. supply voltage allowed
2
AUX
I01-
Io1 4-20 mA
Output
Io1 Signal
Same output assignment as TB2-9
3
AUX
I02+
Isolated Loop
Supply Io2
Io2 External
Power
+30V max. supply voltage allowed
4
AUX
I02-
Io2 4-20 mA
Output
Io2 Signal
Same output assignment as TB2-11
Not Used
5
AUX
I03+
Isolated Loop
Supply Io3
Io3 External
Power
6
AUX
I03-
Io3 4-20 mA
Output
Io3 Signal
+30 V max. Same as TB2-1
7
AUX
I04+
Isolated Loop
Supply Io4
Io4 External
Power
8
AUX
I04-
Io4 4-20 mA
Output
Io4 Signal
System outputs assignable and
scalable to flow related parameters.
4-20mA outputs also provide a fault
indication by dropping to 2mA if
assigned to flow rate and under fault
conditions.
+30 V max. Same as TB2-3
Note
Auxiliary 4-20mA loops are assigned and spanned under menu control of Vo and PGEN
outputs.
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