KH 5757 EN
Translation of original instructions

TROVIS 5757-3 Electric Actuator with Process Controller
for domestic hot water heating

Firmware version 2.20
Ausgabe September 2023

Notes on this configuration manual
The documentation for TROVIS 5757-3 Electric Actuator with Process Controller is divided
into two parts:− Mounting and Operating Instructions u EB 5757
− Configuration Manual KH 5757
This Configuration Manual KH 5757 is intended for qualified personnel with experience incontrol engineering. All the ready-configured systems are described.
It is assumed that users are familiar with the operation of the device and the TROVIS-VIEW
configuration software. If necessary, refer to the associated mounting and operating instructions:u EB 5757 for the mounting, start up and operation of the electric actuator with processcontrolleru EB 6661 for the operation of the TROVIS-VIEW configuration software

The device-specific mounting and operating instructions are available on
our website at www.samsongroup.com > SERVICE & SUPPORT >Downloads > Documentation.

Definition of signal words! DANGER
Hazardous situations which, if not avoided,
will result in death or serious injury! WARNING
Hazardous situations which, if not avoided,
could result in death or serious injury! NOTICE
Property damage message or malfunction
Note
Additional information
Tip
Recommended action

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Contents

1.

General.........................................................................................................4

2.
2.1
2.1.1
2.1.2
2.2
2.3
2.4
2.5
2.6
2.7
2.8
2.9
2.10

Functions and parameters...............................................................................5
DHW heating in instantaneous heating system..................................................5
DHW tapping recognition with a flow switch.....................................................6
Tapping detection using the water flow sensor...................................................7
Set point switchover........................................................................................7
Thermal disinfection........................................................................................8
Maintaining the heat exchanger at a constant temperature.................................8
Excessive temperature protection....................................................................10
Frost protection.............................................................................................10Control parameters.......................................................................................10
External demand processing..........................................................................11
Function of switching output...........................................................................12
Direction of action.........................................................................................13

3.
3.1
3.2

Functions of memory pen..............................................................................13
Command mode...........................................................................................13
Data logging................................................................................................14

4.
4.1
4.2
4.3
4.4
4.5
4.6

Additional readings and functions in the TROVIS-VIEW software....................15
Manual level in TROVIS-VIEW.......................................................................15
Operating information..................................................................................15
Operating states...........................................................................................16
Functions.....................................................................................................16
Status messages...........................................................................................17
Statistics......................................................................................................18

5.
5.1

Configuration list and customer-specific data.................................................19
Customer-specific data..................................................................................21

KH 5757 EN

General

1. General
The functions and parameters are changed in the TROVIS-VIEW software. To transfer settingsfrom the software to the electric actuator or vice versa, they must be connected. Seeu EB 6661.
! WARNING
Hazard arising from moving parts on the valve.
The software in online mode has a direct influence on the connected device and, as a result,on the valve. To avoid personal injury or property damage, plant operators and operating
personnel must prevent hazards that could be caused in the control valve by the process
medium, the operating pressure, the signal pressure or by moving parts by taking
appropriate precautions. Plant operators and operating personnel must observe all hazard
statements, warnings and caution notes in the referenced documents.
Note
The TROVIS-VIEW software is required to configure the TROVIS 5757-3 Electric Actuator with
Process Controller. The TROVIS-VIEW software can be downloaded free of charge from our
website (u www.samsongroup.com > SERVICE & SUPPORT > Downloads > TROVIS-VIEW).
Further details can be found in Data Sheet u T 6661.

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Functions and parameters

2. Functions and parameters
2.1 DHW heating in instantaneous heating system
VL RL
W

WW

VS

TW

Zir

WSS

KW

VSTW DHW sensor
WSS Water flow sensor

RL District heating return WW Hot water
VL District heating supply KW Cold water
Zir
Circulation pipe

Fig. 1: DHW heating in instantaneous heating system with flow sensor and DHW tapping
recognition

The DHW temperature is controlled to the set point temperature in DHW heating in instantaneous heating systems:
Î If the DHW temperature falls below the set point, the actuator opens the valve (pulses) toincrease the DHW temperature.
Î If the DHW temperature exceeds the set point, the actuator closes the valve (pulses) to reduce the DHW temperature.
FunctionsDefault

Configuration

F01: DHW tapping recognition

1

F01 - 0Parameters

Default

Value range

P01: Set point W1

60 °C

0 to 100 °C

P02: Set point W2

70 °C

0 to 100 °C

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Functions and parameters

Operation with a DHW sensor
A Pt1000 temperature sensor (e.g. Type 5207-0060, ideally combined with a sensor pocket
to provide the best positioning of the sensor at the heat exchanger) measures the DHW temperature at the heat exchanger. The measured temperature is compared with the set point
and the valve is moved accordingly to achieve this temperature (see above).
Operation with a current input
As an alternative to a flow sensor, the input of the current flow temperature can be also be
implemented by the current input (0 to 20 mA or 4 to 20 mA). The input signal is based on
the measuring range (Xmin to Xmax). The measured DHW temperature is compared with theset point and the valve is moved accordingly to achieve this temperature (see above).
Note
The function to maintain the water temperature at a constant temperature (see section 2.3)
cannot be used when the current input is active.
FunctionsDefault

Configuration

F05: Current input

0

F05 - 1

F06: Function of current input

0F06 - 0F07: Measuring range of current input

0F07 - 0: 0 to 20 mA
F07 - 1: 4 to 20 mA

Parameters

Default

Value range

P03: Lower measuring range value Xmin

0 °C

–50 to +90 °C

P04: Upper measuring range value Xmax

100 °C

10 to 150 °C

2.1.1

DHW tapping recognition with a flow switch

The flow switch is used to indicate when DHW tapping is starts and finishes. A closed contact
causes the pump to start running (the DHW temperature control at the DHW sensor is active).
An open contact causes the valve to close and the pump to be switched off.
FunctionsDefault

Configuration

F01: DHW tapping recognition

1

F01 - 1

F02: Flow rate sensor

1

F02 - 0

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Functions and parameters

2.1.2

Tapping detection using the water flow sensor

In contrast to the DHW tapping recognition with a flow switch, the extent of tapping is indicated as well as when the DHW tapping starts and finishes.
By activating the optimizing function Adaptation, the device adapts itself to changing network conditions without having to change the control parameters (see section 2.7). The optimizing function can only be activated when a water flow sensor is used.
Note
Hot water being tapped is also detected when the maximum flow rate of the water flow sensor is exceeded.
FunctionsDefault

Configuration

F05: Current input

1

F01 - 1

F06: Function of current input

1

F02 - 1

F07: Measuring range of current input

1

F07 - 1

2.2 Set point switchover
The device can use two different set points W1 and W2 to control the valve. The set pointswitchover is implemented by the binary input (BI1):− BI1 open: W1 is the set point− BI1 closed: W2 is the set point
It is only possible to change between set points W1 and W2 when the DHW temperature ismeasured with a Pt1000 resistance sensor (F05 - 0).
Note
When the binary input BI1 is used, the current input cannot be used. It also not possible todeactivate the function to maintain the heat exchanger at a constant temperature (see section 2.4) when the binary input is used for set point switchover.
FunctionsDefault

Configuration

F05: Current input

0

F05 - 0F08: Function of binary input

0F08 - 1

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Functions and parameters

2.3 Thermal disinfection
The thermal disinfection is based on a raised water temperature to kill harmful germs andminimize the growth of Legionella bacteria. The function must be performed close to the timeof-use since it is only effective while hot water is being tapped. For example, it can be
activated during the daytime one day of the week. Stagnant hot water in the heat exchanger
and pipelines are heated and rinsed as soon as hot water is tapped.
The thermal disinfection is activated by the closing of binary input BI1. This causes theswitchover to set point W2. It can be implemented by the manual operation of a switch oraccording to a schedule based on a time switch.
Î See section 2.2.
! DANGER
Legionella bacteria pose a health hazard and are potentially deadly.
Insufficient thermal disinfection can lead to the growth of Legionella bacteria. Legionnaires'
disease is a severe form of pneumonia. It can be fatal in some cases.
Î Perform thermal disinfection regularly.
Î Set a temperature of at least 70 °C for thermal disinfection.
Tip
The default set point W1 is 60 °C. We recommend raising the set point W1 (P01) to 62 °C
as a precautionary measure. This can help eliminate most Legionella bacteria during normal
operation.

2.4 Maintaining the heat exchanger at a constant temperature
When the DHW tapping recognition is active, the actuator controls the hot water to the set
point temperature only when hot water is demanded. To guarantee that the temperaturereaches the set point W1 quickly when hot water is demanded again, the heat exchanger isprevented from cooling down by the function to maintain the heat exchanger at a constanttemperature: the hot water is kept at a temperature reduced by the 'Set-back difference'.
Depending on the configuration, the reduced set point applies after hot water has beentapped until the next demand or while the 'Heating period to maintain heat exchanger atconstant temperature' (P12) is active.

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Functions and parameters

Note
Upon power supply failure, an active function is canceled. After the power supply is reconnected, hot water must be tapped to reactivate the function.
FunctionsDefault

Configuration

F01: DHW tapping recognition

1

F01 - 1

F09: Maintain heat exchanger at constanttemperature

0

F09 - 0: Time adjustable (P12)
F09 - 1: Continuous

Parameters

Default

Value range

P11: Set-back difference

8K

0 to 30 K

P12: Heating period to maintain heat exchanger at constant temperature

24.0 h0 to 25.5 hInfluence of the binary input BI1
If the binary input BI1 is not required for set point switchover, it is used to deactivate the function to maintain the heat exchanger at a constant temperature.
− BI1 open: function to maintain heat exchanger at a constant temperature according toconfiguration of F09.
− BI1 closed: function inactive
When the binary input BI1 is closed, an active function to maintain the heat exchanger at
a constant temperature is immediately terminated, even when the 'Heating period tomaintain heat exchanger at constant temperature' has not yet elapsed.
Note
When the binary input is active, the current input cannot be used.
FunctionsDefault

Configuration

F05: Current input

0

F05 - 0F08: Function of binary input

0F08 - 0

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Functions and parameters

2.5 Excessive temperature protection
The actuator closes the valve when the flow temperature at the flow sensor exceeds the 'Upper limit (GWH)'.
When F10 - 0 is configured, no monitoring of the flow temperature for violation of the upper
limit takes place.
FunctionsDefault

Configuration

F10: Upper limit (GWH)0

F10 - 1

Parameters

Default

Value range

P05: Upper limit (GWH)

95 °C

0 to 100 °C

2.6 Frost protection
When the function is active, the flow temperature is monitored for violation of the lower limit.
When the temperature falls below the 'Lower limit (GWL)', the actuator opens the valve (pulses) until the temperature exceeds the lower limit plus hysteresis.
When F11 - 0 is configured, no monitoring of the flow temperature for violation of the lower
limit takes place.
FunctionsDefault

Configuration

F11: Lower limit (GWL)

0

F11 - 1

Parameters

Default

Value range

P06: Lower limit (GWL)

5 °C

0 to 20 °C

Parameters

Default

Value range

P07: Proportional-action coefficient KP

0.8

0.1 to 50

P08: Reset time Tn

15 s

0 to 999 s

P09: Derivative-action time Tv

0s

0 to 999 s

P10: Actuator transit time Ty

25 s

0 to 240 s

2.7 Control parameters

The actuator transit time Ty (P10) reflects the time that the valve needs to move through therange from 0 to 100 % without stopping. The default Ty value is 35 s.

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Functions and parameters

Note
The default setting is based on 6 mm rated travel. The actual transit time can be determinedby the "Start transit time measurement" parameter (see section 4.4).

2.8 External demand processing
The device can process an external demand for heat depending on the configuration. A
measuring range (Xmin to Xmax) is assigned to the current signal (0 to 20 mA or 4 to
20 mA, set point). The external hot water set point has priority over the internal set point.
Note
Only a Pt1000 sensor can be used to measure the hot water temperature when the function
for an external demand is active.
FunctionsDefault

Configuration

F05: Current input

0

F05 - 1

F06: Function of current input

0F06 - 1

F07: Measuring range of current input

0F07 - 0: 0 to 20 mA
F07 - 1: 4 to 20 mA

Parameters

Default

Value range

P03: Lower measuring range value Xmin

0 °C

–50 to +90 °C

P04: Upper measuring range value Xmax

100 °C

10 to 150 °C

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Functions and parameters

2.9 Function of switching output
Note
The switching output function is available for electric actuators with firmware 2.x and higher.
The switching output can be configured as either a pump output (circulation pump for the
DHW circuit or heating circuit), a fault alarm output or an output to indicate when hot wateris tapped.
− Passive function:

The switching output is inactive.

− Function of the fault alarm:

The switching output is active when a fault has occurred.

− Function of the circulation pump(DHW):The switching output is active while hot water is being tapped, when the function to maintain the hotwater at a constant temperature or the frost protection function is active.

− Function of the circulation pump(heating):

The switching output is active after a demand forheat (valve position > 0 %).

− Function of the tapping:

The switching output is active while hot water is being tapped.

− Function of the circulation pump(heating) reversed:

The switching output is switched off when the actuator stem reaches the top end position.

FunctionsDefault

Configuration

F16: Function of switching output

1

F16 - 1: Not active
F16 - 2: Fault alarm
F16 - 3: Circulation pump (DHW)
F16 - 4: Circulation pump (heating)F16 - 5: Tapping
F16 - 6: Circulation pump (heating) reversed

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Functions of memory pen

2.10 Direction of action
Increasing/increasing (F04 - 0)
− Actual value < Set point: Actuator stem retracts− Actual value > Set point: actuator stem extends
Increasing/decreasing (F04 - 1)
− Actual value < Set point: Actuator stem extends− Actual value > Set point: Actuator stem retracts
FunctionsDefault

Configuration

F04: Direction of action

0

F04 - 0: >> (increasing/increasing)F04 - 1: <> (increasing/decreasing)

3. Functions of memory pen
The memory pen can be ordered (order no. 1400-9753). More details can be found in the
Operating Instructions u EB 6661.

3.1 Command mode
A memory pen (order no. 1400-9753) can be configured in TROVIS-VIEW to be a command pen. The command pen allows the actuator stem to be moved to the open and closed
positions.
Note
The action of retracting/extending the actuator stem on inserting the command pen has absolute priority. The input signal is overridden.
Î The configuration of the memory pen is explained in u EB 6661.

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Functions of memory pen

3.2 Data logging
Note
The data logging function is available for electric actuators with firmware 2.x and higher.
The memory pen allows the following data to be saved:− Pt1000 input− Flow rate
− Current input− Actuator stem position− Positioning value− Z component− P component− I component− D component− Malfunctions− Tapping− Control− Maintain temperature constant− Frost protection− Switching output− Torque switch: actuator stem retracted− Torque switch: actuator stem extended− Adaptation active− Adaptation A1 guided− Adaptation changed− Manual potentiometer− Temperature inside device
Start/stop data logging (u EB 6661)

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Additional readings and functions in the TROVIS-VIEW software

4. Additional readings and functions in the TROVIS-VIEW software
4.1 Manual level in TROVIS-VIEW
The actuator can be switched to the manual mode using the TROVIS-VIEW software.
The following actions are possible in the manual level:− Retract actuator stem
− Extend the actuator stem
− Move actuator stem to standardized positioning valueFirst enter the required positioning value in relation to the input variable range (standardized positioning value).
The electric actuator leaves the manual mode as soon as you exit the manual level or the online mode in TROVIS-VIEW.

4.2 Operating information
In online mode the current data measured by the sensors and the active set point are listed inthe [Operating values] folder.

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Additional readings and functions in the TROVIS-VIEW software

4.3 Operating states

4.4 Functions

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Additional readings and functions in the TROVIS-VIEW software

4.5 Status messages

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Additional readings and functions in the TROVIS-VIEW software

4.6 Statistics

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Configuration list and customer-specific data

5. Configuration list and customer-specific data
Function block list
The function blocks have the following listed functions.
F = Function blockF

WE = Default setting
WE

Meaning

01 DHW tapping recognition

1

0: Continuous control
1: Flow rate sensor active

02 Flow rate sensor

1

0: Flow switch
1: Water flow sensor

03 Adaptation

1

0: Not active
1: Active (with water flow sensor)

04 Direction of action

00: >> (increasing/increasing)1: <> (increasing/decreasing)05 Current input

00: Not active (binary input)
1: Active

06 Function of current input

0

0: Actual value
1: Set point

07 Measuring range ofcurrent input0

0: 0 to 20 mA
1: 4 to 20 mA

08 Function of binary input

0

0: Termination of maintaining heat exchanger at constanttemperature
1: Switchover between internal set points

09 Maintain heat exchanger
at constant temperature0

0: Time adjustable
1: Continuous

10 Upper limit (GWH)0

0: No limitation
1: Exceeding GWH causes switch-off

11 Lower limit (GWL)

0

0: No frost protection
1: Violation of GWL causes frost protection to start

16 Function of switching
output3

1: Not active
2: Fault alarm
3: Circulation pump (DHW)
4: Circulation pump (heating)
5: Tapping
6: Circulation pump (heating) reversed1)

17 Pump protection1)

1

0: No
1: Yes1)Function

Firmware version 2.20 and higher

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Configuration list and customer-specific data

Parameter list
The parameters have the setting ranges as listed below.
P = Parameter

WE = Default settingP

Parameters

WE

Adjustment range

01

Set point W1

60 °C

0 to 100 °C

02

Set point W2

70 °C

0 to 100 °C

03

Lower measuring range value Xmin

0 °C

–50 to +90 °C

04Upper measuring range value Xmax

100 °C

10 to 150 °C

05Upper limit (GWH)

95 °C

0 to 100 °C

06

Lower limit (GWL)

5 °C

0 to 20 °C

07

Proportional-action coefficient KP

0.8

0.1 to 50

08

Reset time Tn

15 s

0 to 999 s

09

Derivative-action time Tv

0s

0 to 999 s

10

Actuator transit time Ty

25 s

0 to 240 s

11

Set-back difference

8K

0 to 30 K

12Heating period to maintain heat exchanger atconstant temperature 1)

24.0 h0 to 25.5 h

1)

20

Firmware version 2.20 and higher

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Configuration list and customer-specific data

5.1 Customer-specific data
StationOperator
SAMSON office

Function blocks
F

WE

01
02

P

WE

1

01

60 °C

0 to 100 °C

1

02

70 °C

0 to 100 °C

03

1

03

0 °C

–50 to +90 °C

04

0

04

100 °C

10 to 150 °C

05

0

05

95 °C

0 to 100 °C

06

0

06

5 °C

0 to 20 °C

07

0

07

0.6

0.1 to 50

08

0

08

25 s

0 to 999 s

09

0

09

0s

0 to 999 s

10

0

10

35 s

0 to 240 s

11

0

11

8K

0 to 30 K

16

1

12

24.0 h0 to 25.5 h

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Performed setting

Parameters
Performed setting

Adjustment range

21

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SAMSON AKTIENGESELLSCHAFT
Weismüllerstraße 3 · 60314 Frankfurt am Main, Germany
Phone: +49 69 4009-0 · Fax: +49 69 4009-1507
samson@samsongroup.com · www.samsongroup.com

2023-11-02 · English

KH 5757 EN