16
VI.72.M4.02
Danfoss 11/97
BC-HM
P0.4
Bus address 0 - 15
Setting of control address. Master control must always have address 15 and slaves
always 0-14.
Master control
Transmits: Time switch signal and S3 temperature
Receives: Reference temperature
Slave regulator
Address 0
Receives: Time switch signal or S3 temperature*
Address 1-14
Transmits: Reference temperature
Receives: Time switch signal and S3 temperature*
*Master control S3 temperature can only be received under the following conditions:
- no sensor S3 on slave control
- slave control P3.1 must be set within range 2-10°C
P1.0
Actual temperature at sensor S1
Display shows actual temperature at sensor S1 in PI circuit.
P1.1
Required temperature at sensor S1
Display shows temperature required (reference temperature) at sensor S1 in PI
circuit. Reference temperature is the sum of balance temperature and diverse
compensations.
P1.2
Valve function/Total stop: 0 or 1
Valve function (systems 1-D and 1-E)
0
When storage tank charging is finished the valve closes (system without
circulation or system with circulation through tank - 1-D).
1
When storage tank charging is finished the valve continues to control and
maintains charging temperature in circulation line (system with circulation
through heat exchanger - 1-E).
Total stop (system 2-6)
0
On reduced operation, control according to reduced temperature as set in
P9.0.
1
On reduced operation, control according to frost protection temperature
6°C. If room temperature falls below set value in P9.0, control again
according to normal temperature (P8.0) until temperature rises 1°C.
P1.3
Balance temperature for S1 reference: -20 to 110°C
When sensor S2 is connected (P + PI control) the PI circuit reference varies around
the balance temperature. The basic setting of the balance temperature depends on
the system selected. The balance temperature is adaptive and can vary ±5 K
around the set value. The displacement is not displayed in this position.
P1.4
Motor constant: 1 - 899 s
Setting of valve motor running time from fully closed to fully open valve for the valve/
motor combination selected. When the correct time for the motor/valve combination
is set, the Tn integration time can be set in seconds (P3.4).
Summary of Contents for EPU 2370
Page 24: ...24 VI 72 M4 02 Danfoss 11 97 BC HM Wiring diagram System types 1 A 1 B and 1 C...
Page 28: ...28 VI 72 M4 02 Danfoss 11 97 BC HM Wiring diagram System types 1 D and 1 E...
Page 32: ...32 VI 72 M4 02 Danfoss 11 97 BC HM Wiring diagram System types 2 A and 2 B...
Page 36: ...36 VI 72 M4 02 Danfoss 11 97 BC HM Wiring diagram System type 3...
Page 40: ...40 VI 72 M4 02 Danfoss 11 97 BC HM Wiring diagram System types 4 A and 4 B...