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Input EX1, EX2, EX3, EX4, EX5, EX6, EX7
Function input EX1,
EX2, EX3, EX4, EX5,
EX6, EX7
186/258
Siemens Switzerland Ltd
HVAC Products
• Example of room temperature 10 V
Tr [°C]
F
=100
2
F
=0
1
U1=0V
0.15V
Tr
Room temperature
Hx
Voltage value at Hx
U1
Voltage value 1
F1
Function value 1
U2
Voltage value 2
F2
Function value 2
If the measured value is below 0.15 V, it is regarded invalid and an error message is
delivered.
This operating line is used to define the function of inputs Ex (230 V).
Line no.
Operating line
5980
Function input EX1, EX2, EX3, EX4, EX5, EX6, EX7
5982
Only RVS61..
None
5984
Electrical utility lock E6
5986
Low tariff E5
5988
Overload compressor 2 E11
5990
Source overload E14
Pressure switch source E26
5992
Flow switch source E15
Flow switch consumer E24
Manual defrost E17
134: Common fault HP
Fault soft starter
None
Activation of input Ex has no impact.
EW lock
Accepts an external locking signal (e.g. from the electrical utiliy) for the heat pump and
locks it. If, in the case of air-to-water heat pumps, locking occurs during defrost, the
controller completes the defrost process before locking the heat pump. Electric
immersion heaters are locked during the EW lock.
Low tariff
The low tariff signal delivered by the electrical utility can be routed via an Ex input. As
soon as the input is activated, forced charging of the storage tanks is triggered. Electric
immersion heaters are released.
The point in time for forced storage tank charging can also be set as a fixed time on
operating lines 4711 and 4712.
Overload compressor 2
Takes the overload message from compressor 2 and shuts it down.
If overload protection responds several times within the preset "Duration error
repetition", the heat pump initiates lockout and must be manually reset to resume
operation.
User manual RVS61.843, RVS41.813
6 The settings in detail
Hx [V]
U
=10V
2
Only RVS41..
None
Electrical utility lock E6
Low tariff E5
Source overload E14
Pressure switch source E26
Flow switch source E15
Flow switch consumer E24
Manual defrost E17
134: Common fault HP
Fault soft starter
Low-pressure switch E9
High-pressure switch E10
Overload compressor 1 E11
Error/alarm message
28. September 2009
CE1U2355en_02
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