Azbil Micro Flow MQV0002, Руководство пользователя

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5-10
Chapter 5. ADVANCED OPERATION
*3. When "4: Switching of analog I/O voltage range" is selected for external 3-way switching function assignment
c-09
in
the function setup, external 3-way switching input takes precedence over others. Additionally, the analog input and
output ranges change as shown in the table below according to the input status and the setting status of
c-06
.
Settings
in
C-06
External 3-way switching input state
OPEN 0 V 5 V
0 0 to 5 V internal reference input/
0 to 5 V instantaneous flow rate
output 0 to 5 V external reference input/
0 to 5 V instantaneous flow rate
output 1 to 5 V external reference input/
1 to 5 V instantaneous flow rate
output
1
2 0 to 20 mA external reference
input/
0 to 20 mA instantaneous flow rate
output 0 to 20 mA external reference
input/
0 to 20 mA instantaneous flow rate
output 4 to 20 mA external reference
input/
4 to 20 mA instantaneous flow rate
output
3
4 0 to 5 V internal reference input/
0 to 5 V setting flow rate output 0 to 5 V external reference input/
0 to 5 V setting flow rate output 1 to 5 V external reference input/
1 to 5 V setting flow rate output
5
6
0 to 20 mA external reference
input/
0 to 20 mA setting flow rate output 0 to 20 mA external reference
input/
0 to 20 mA setting flow rate output 4 to 20 mA external reference
input/
4 to 20 mA setting flow rate output
7
*4. This setting can be made only for models with RS-485 communications.
*5. This setting cannot be made for the MQV0050 (J, K).
*6. This setting can be made only for the MQV9200/9500/0002/0005.
*7. The SP display on the main unit shows the final SP that was reached. This setting is also valid if
C-03
, “Flow rate setup
method selection” is set to “1: Analog setup (by external analog input voltage).”
Handling Precautions
•
When the operational differential pressure setting (
C-36
) is changed to
"0: Low differential pressure (50 ± 50 kPa)," always use the device with an
operational differential pressure less than 100 kPa. Failure to do so may cause
overshoot or hunting of the flow rate.