QALCOMET HEAT 1, User Manual

Page: 46 / 52

Heat meter calculator QALCOMET HEAT 1 PEQMH1V01
46
Annex B cont.
Fig. B4. Diagram for connecting the regulating valve (regulating function). Valve power supply is 230 V
Fig.B5. Flow sensor
V2 connection diagram for energy measurement algorithm “3
– winter / summer”
Remark: Flow sensor V2 should generate addition flow direction indication signal (electrical parameters
should be identical as pulse output parameters):
log.1 (or open input)
–
when fluid flows in forward direction;
log.0 (or shorted input)
–
when fluid flows in reverse direction.
+ Power supply
+ Output pulses
Flow direction signal
Ground
9 11 10 11 52 11 53 11 54
Y1
“
Openi
”
Y2
“
Closse
”
N Common
2Afuse
N
L
230 V
50 Hz
70 71 72 26 27 28
Ground
Valve contacts
Y1
“
Openi
”
Y2
“
Closse
”
N Common
2Afuse
N
L
N
L
230 V
50 Hz
230 V
50 Hz
70 71 72 26 27 28
Ground
Valve contacts