5
Chapter 2. WIRING
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Connector signal table
Handling Precautions
• Either pin No. 6 and pin No. 9 is able to connect as SG.
• For details on wiring way, see the CMQ-V Series Digital Mass Flow
Controller user's manual No. CP-SP-1204E or CMQ-V Series Digital Mass
Flow Controller (for Hydrogen and Helium Gases) user's manual No. CP-
SP-1205E.
Pin
Signal name
Description
Remarks
number
20
+5V (5mA max.)
5Vdc reference voltage output
5mA max.
19
FLOW OUT
Instantaneous flow rate (PV)
0 to 5Vdc/ 1 to 5Vdc/ 0 to 20mAdc/
voltage output/ setting flow rate
4 to 20mAdc
(SP) output
18
A.GND
Analog ground
Common of analog signals
17
FLOW SP INPUT
Instantaneous flow rate setting
0 to 5Vdc/ 1 to 5Vdc/ 0 to 20mAdc/
(SP) voltage input
4 to 20mAdc
16
MODE INPUT
External 3-stage switching input
3-stage switching input of Open/ GND/ 5V
15
DI3
External contact input 3
Switching input of Open/ GND
14
DI2
External contact input 2
13
DI1
External contact input 1
12
EV2 OUT
Event output 2
Open collector non-insulated output
11
EV1 OUT
Event output 1
10
ALM OUT
Alarm output
9
SG (D.GND)
RS-485 communications SG
Same as the common of digital signal
8
DB
RS-485 communications DB
7
DA
RS-485 communications DA
6
SG (D.GND)
RS-485 communications SG
Same as the common of digital signal
5
TEST
For test
For test (connecting is prohibited)
4
POWER GND
Power supply ground
In order to decrease the voltage drop
3
POWER GND
Power supply ground
caused by wiring resistance, connect each
2
POWER (24V)
Power 24Vdc
two wires to the power supply in parallel.
1
POWER (24V)
Power 24Vdc
Содержание Azbil CMQ-V Series
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