ABB SensyMaster FMT430 Operating Instructions Manual page 60

60 SensyMaster FMT430, FMT450 THERMAL MASS FLOWMETER | OI/FMT430/450-EN REV. B
... 7 Electrical connections
... Electrical data for inputs and outputs
Current output V1 / V2, V3 / V4 (plug-in module)
Up to two additional plug-in modules can be implemented via
the 'Passive current output (red)' option module.
Can be configured for outputting mass flow, volume flow,
density and temperature via on-site software.
A Current output V1 / V2, passive
Figure 48: (I = internal, E = external, R
The plug-in module can be used in slot OC1 and OC2.
Permissible source voltage U for passive outputs in relation to load
q
resistance R where Imax = 22 mA.
B
Figure 49: Source voltage for passive outputs
Passive current output
Terminals V1 / V2, V3 / V4
Output signal 4 to 20 mA
Load R 250 Ω ≤ R
B
Source voltage U * 13 V ≤ U
q
Measuring error < 0.1 % of measured value
Resolution 0.4 µA per digit
* The source voltage U is dependent of the load R
q
an additional area.
B Current output V3 / V4, passive
= load)
B
= Permissible range

≤ 600 Ω
B
≤ 30 V
q
and must be placed in
B
Digital output V1 / V2, V3 / V4 (plug-in module)
An additional binary output can be implemented via the 'Passive
digital output (green)' plug-in module.
Can be configured as an output for flow direction signaling,
alarm output etc. via on-site software.
Figure 50: Plug-in card as binary output (I = internal, E = external, R
The plug-in module can be used in slot OC1 or OC2.
Binary output (passive)
Terminals V1 / V2, V3 / V4
Output 'closed' 0 V ≤ U
2 mA < I
Output 'open' 16 V ≤ U
0 mA ≤ I
Switching function Can be configured using software.
Menu: Input/Output on page 113
= load)
B
≤ 3 V
CEL
< 30 mA
CEL
≤ 30 V DC
CEH
≤ 0.2 mA
CEH