Design, Assembly and Service Manual
Page 18 of 44
Induction flow meter FMG600 series
6.2.2. Output signal connections
Terminal Polarity Function
Comments
1
Switching contact
Change-over contact
Optocoupler contacts.
2
Central contact
Output relay
0,3 A, 30 VDC
3
Break contact
4
- pole
Current output
Active output, loading Rz max. 1000
Ω
.
No external power source needed.
5
+ pole
6
Conductor B (-)
RS 485
To be directly connected
to the communication line.
7
Conductor A (+)
8
Anode (+)
Dosing (optional)
Binary input 1
Passive input. 5 VDC, 10 mA.
9
Cathode (-)
10
Optocoupler. collector (+) Dosing (optional)
Binary output 3
Passive output, requires external power
source and loading resistor..
11
Optocoupler emitter (-)
12
Optocoupler collector (+)
Binary output 2
Passive output, requires external power
source and loading resistor.
13
Optocoupler emitter (-)
14
Optocoupler collector (+)
Binary output 1
Passive output, requires external power
source and loading resistor.
15
Optocoupler collector (-)
The output terminals can be connected to other electronic equipment using standard shielded signal cables.
For connecting between output terminal and other device can be used shielded data cable with diameter
0.12 to 0.26 “ (3 to 6,5 mm) and intersection AWG 20 to AWG 16 (0,5 to 1,5 mm
2
). For connection of output
signals and communication is necessary to use shielded cables. Shielding must be connected only on one
side of the control system.
After finishing connection, screw up all screws of covers and ensure that it is fixed well. Plug up all unused
grommets and check, that used grommets are tight.
6.3. Connection between sensor and electronic unit (remote version)
In a compact version of the meter, this connection is internal. With a remote meter version, the electronic unit
shall be connected to the associated sensor be means of a special cable supplied attached on the electronic
unit side. On the sensor side, connect the cable wires paying attention to the wire insulation colors and the
terminal identification labels.
Special cable UNITRONIC Cy PiDy 3x2x0.25 length up to 50m, temperature up to 70°C:
Brown BN
A
Blue BU
B
White WH
C
Green GN
D
Yellow YE
E
Yellow and green GNYE
Shielding
Pink PK
W2
Gray GY
W1
