Azbil Micro Flow MQV0005, Руководство пользователя

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3-11
Chapter 3. MOUNTING AND WIRING
•
External 3-way switching input
20
18
16
OPEN
5 V
0 V
+5 V
A.GND (0 V)
MODE INPUT
Handling Precautions
•
When switching by relay, use an appropriate relay intended for
microcurrent use (with gold contacts). Failure to do so could
cause faulty contact, resulting in malfunction.
Operation of external 3-way switching input
Input state of pin No.16
Assigned function
OPEN 0 V 5 V
Switching of operating mode 1 Control Fully closed Fully open
Switching of operating mode 2 Fully closed Control Fully open
Switching of SP No. SP-0 SP-1 SP-2
Switching of totalizing
operation Continue counting Reset Stop counting
Switching of analog
I/O voltage range
Input Internal
reference*
0 to 5 V or
external
reference
0 to 20 mA
External
reference
0 to 5 V or
0 to 20 mA
External
reference
1 to 5 V or
4 to 20 mA
Output 0 to 5 V/0 to 20 mA 0 to 5 V/0 to 20 mA 1 to 5 V/4 to 20 mA
* "Internal reference" refers to the use of the 5 V DC reference voltage pin (No. 20) on this device,
and is used when the setting value is set by an externally connected potentiometer.
Note
•
For details on how to assign external 3-way switching input func-
tions,
Chapter 5. ADVANCED OPERATION