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MIW-EVSS-DM-EN-000 - 18 / 12 / 2018

13 - 16

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HOLDING REGISTERS

Data type

Description

Data

Default

Values

1

Device slave address

unsigned int.

Modbus device address

1—247 

1

 

2

Modbus baud rate

unsigned int.

Modbus communication baud rate

1—4 

2

1  =  
2 = 
3 = 
4 = 

9.600

19.200

38.400

57.600

3

Modbus parity

unsigned int.

Parity check mode

0—2 

1

0 = 
1  =  
2 = 

8N1

8E1

8O1

4

Device type

unsigned int.

Device type 

(Read only)

EVSS-DM = 3005

 

5

HW version

unsigned int.

Hardware version of the device 

(Read only)

XXXX

0 x 0300 = 

HW version 3.00

6

FW version

unsigned int.

Firmware version of the device 

(Read only)

XXXX

0 x 0140 = 

FW version 1.40

7

Operating mode

unsigned int.

Enables Modbus control and disables the DIP switch 
and trimmers

0—1 

0

0 = 
1  =   

Standalone 

mode

Modbus mode

8

Output override

unsigned int. 

Enables the direct control over the output. 

Always 

settable. Active only if holding register 7 is set to 1.

0—1 

0

0 = 
1 =

Disabled

Enabled

9-10  

 

Reserved, return 0

 

11

Analog input type

unsigned int.

Selects the analog input type of the device. 

Always 

settable. Active only if holding register 7 is set to 1.

0—1 

1

0  =   
1 = 

0—20 mA

0—10 VDC

12

Ascending / 
descending analog 
input mode

unsigned int.

Ascending  /  descending analog input mode. 

Depends on the selected analog input type. Always 
settable. Active only if holding register 7 is set to 1.

0—1 

1

0 =
1 =

 0  =

1 =

10—0 VDC

0—10 VDC 

or

20—0 mA 

 0—20 mA

13

Maximum output 
voltage

unsigned int.

Maximum settable output voltage. 

Always 

settable. Active only if holding register 7 is set to 1.

75—100

100

75  =          

100  =    

75 % Us

100 % Us

14

Minimum output 
voltage

unsigned int.

Minimum settable output voltage. 

Always settable. 

Active only if holding register 7 is set to 1.

30—70 

30

30  =   

160 =

30 % Us
00 % Us

15

Enable off level

unsigned int.

Enables off level. Always settable. 

Active only if 

holding register 7 is set to 1.

0—1 

0

0  =             
1  =               

Disabled

Enabled

16

Off level value

unsigned int.

Off level value. 

Depends on the selected analog 

input type and ascending  /  descending analog 
input mode. Always settable. Active only if holding 
register 7 is set to 1.

0—40 

60—100 

0

Ascending mode:

0 =

40 =

0 =

40 =

Voltage 

0 VDC

4,0 VDC

Current

0 mA 

8,0 mA

Descending mode:

100 =

60 =

100 =

60 =

Voltage

 

10,0 VDC

6,0 VDC

Current

20,0 mA

12,0 mA

17

Kick start / soft start unsigned int.

Selects kick start or soft start. 

Always settable. 

Active only if holding register 7 is set to 1.

0—1 

1

0 =     
1 = 

Soft start

Kick start

18

Kick start / soft start 
duration

unsigned int.

Sets the duration time. Always settable. 

Active 

only if holding register 7 is set to 1.

0—60 

10

0 = 

60 = 

0 s

60 s

19

Remote control 
functionality

unsigned int.

Sets the remote control input mode. 

Depends on 

the selected kick start or soft start mode. Always 
settable. Active only if holding register 7 is set to 1.

0—1 

0

0 = 
1  =  

Normal mode

Timer mode

20

Analog input 
functionality

unsigned int.

Sets the analog input functionality. 

Depends on the 

selected kick start or soft start. Always settable. 
Active only if holding register 7 is set to 1.

0—1 

0

0 = 
1  =     

 Normal mode

Logic mode

21

Operation timer

unsigned int.

Sets the operation time of the device when Timer 
mode by remote control input or Logic mode by 
the analog input is selected. The operation time 
is additional to the kick start / soft start duration 
times.

 Always settable. Active only if holding 

registers 7 and 19 or / and 20 are set to 1.

0—200 

60

0 =

200 = 

 0  s

200 s

22-
30

 

 

Reserved, return 0

 

31

Output override value unsigned int.

Override value for the analog output. 

Always 

settable. Active only if holding register 8 is set to 1.

30—100

0

0  =        

30  =  

100 = 

0 % Us

30 % Us

100 % Us

32-
40

Reserved, return 0

If you want to find out more about Modbus over serial line, please visit:

 

http://www.modbus.org/docs/Modbus_over_serial_line_V1_02.pdf

EVSS

ELECTRONIC FAN SPEED 
CONTROLLER WITH TK

Summary of Contents for EVSS Series

Page 1: ...EVSS ELECTRONIC FAN SPEED CONTROLLER WITH TK Mounting and operating instructions ...

Page 2: ...NDED AREA OF USE 4 TECHNICAL DATA 4 STANDARDS 5 WIRING AND CONNECTIONS 5 OPERATIONAL DIAGRAMS 6 MOUNTING INSTRUCTIONS IN STEPS 8 VERIFICATION OF INSTALLATION INSTRUCTIONS 10 OPERATING INSTRUCTIONS 11 MODBUS REGISTER MAPS 12 TRANSPORT AND STORAGE 16 WARRANTY AND RESTRICTIONS 16 MAINTENANCE 16 EVSS ELECTRONIC FAN SPEED CONTROLLER WITH TK ...

Page 3: ...ment is as dry as possible avoid condensation All installations shall comply with local health and safety regulations and local electrical standards and approved codes This product can only be installed by an engineer or a technician who has expert knowledge of the product and safety precautions Avoid contacts with energised electrical parts Always disconnect the power supply before connecting ser...

Page 4: ...speed control in ventilation systems For indoor use only TECHNICAL DATA Power supply 230 VAC 10 50 60 Hz Analog input voltage 0 10 VDC 10 0 VDC current 0 20 mA 20 0 mA Analog input modes ascending or descending Analog input functionality Normal mode Logic mode Remote control input normal or timer functionality Regulated output 30 100 Us Max output load depends on the version Unregulated output L1 ...

Page 5: ...C EN 61326 WEEE Directive 2012 19 EU RoHs Directive 2011 65 EU WIRING AND CONNECTIONS L Supply voltage 230 VAC 10 50 60 Hz N Neutral PE Earth terminal L1 Unregulated output 230 VAC max 2 A U1 U2 Regulated output to the motor TK TK Thermal contact N Neutral AL Alarm output 230 VAC 1 A SW Remote control switch A Modbus RTU RS485 signal A B Modbus RTU RS485 signal B V Supply output 12 VDC 1 mA Ai Ana...

Page 6: ...C mA 10 VDC 20 mA 6 VDC 12 mA U out 100 75 70 30 Umax range Umin range Off level Off level enabled Ascending mode calculation formula Uout Umax Aimax Off level Ai Off level Umax Umin Descending mode calculation formula Uout Umax Aimax Off level Ai Off level Umax Umin t s Umax Umin 0 Ai 10 VDC 20 mA Uout 100 75 70 30 0 VDC 0 mA Umax range Umin range Kick start time t s Umax Umin 0 Ai 10 VDC 20 mA U...

Page 7: ... off level Timer mode Logic mode 0 t s 5 VDC 2 5 VDC Remote Switch VDC Stand by Operate Voltage amplitude range Switch control signal t s 0 Uout 100 75 Umax range Kick start time Operation timer Controller is off Kick start enabled Soft start enabled t t t t SW ON ON Holding register 18 Holding register 21 Soft start duration Soft start duration Start Output Umax Timer Soft start Stop Start Stop O...

Page 8: ...ng position and Fig 2 Mounting dimensions Fig 1 Mounting dimensions Fig 2 Mounting position 140 102 4 x 4 5 0 124 205 92 Correct Incorrect 3 Connect the motor fan 4 The unregulated output L1 N can be used to connect a light indicator or to control a damper actuator a valve etc if necessary See Fig 3 Fig 3 Wiring and connections VR3 Off level adj Min speed adj Max speed adj ON 0 10v 10 0v 0 10v 0 2...

Page 9: ...manually onto the pins to be connected see Fig 5 To assure correct communication the NBT jumper needs to be activated in only two devices on the Modbus RTU network see Example 1 and Example 2 Example 1 Example 2 Fig 5 Network bus resistor jumper RX ТX NBT NBT NBT Slave 2 Master Slave n Slave 1 Slave 2 Slave 1 RX ТX NBT NBT Master Slave n ATTENTION On a Modbus RTU network two bus terminators NBTs n...

Page 10: ...ck start disabled Input voltage mode 0 10 VDC Min setting of the Min speed trimmer Max setting of the Max speed trimmer Min setting of the Off level trimmer 3 Set the analog input signal to the maximum value of 10 VDC or 20 mA 4 The connected motor will run at maximum speed or minimum speed depending on the analog input mode ascending descending 5 If OFF level is enabled and descending analog inpu...

Page 11: ... switched on When Timer mode is selected the controller receives a pulse control signal from the remote control switch When Logic mode is selected the controller receives a pulse control signal from the Ai input In both modes Timer mode and Logic mode the pulse width is to be more than 30 ms otherwise the signal is filtered FRONT PANEL LED INDICATION When the green LED on the front cover Fig 10 gi...

Page 12: ...ximum output voltage 75 100 75 100 75 Us 100 Us 6 Minimum output voltage unsigned int Minimum output voltage 30 70 30 70 30 Us 70 Us 7 Enable off level unsigned int Enables off level 0 1 0 1 Disabled Enabled 8 Off level value unsigned int Off level value depending on the selected analog input type and ascending descending analog input mode 0 40 60 100 Ascending mode 0 400 0 200 Voltage 0 VDC 4 0 V...

Page 13: ...s settable Active only if holding register 7 is set to 1 0 1 0 0 1 Disabled Enabled 16 Off level value unsigned int Off level value Depends on the selected analog input type and ascending descending analog input mode Always settable Active only if holding register 7 is set to 1 0 40 60 100 0 Ascending mode 0 40 0 40 Voltage 0 VDC 4 0 VDC Current 0 mA 8 0 mA Descending mode 100 60 100 60 Voltage 10...

Page 14: ... 4 according to the selected operating mode The values are 0 for descending mode or 1 for ascending mode Input register 5 30005 shows the value of the maximum output voltage This input register is defined by holding register 13 or the hardware setting of the Max trimmer Fig 6 according to the selected operating mode The register values vary in range of 75 100 75 100 Us VAC Input register 6 30006 s...

Page 15: ... Single Register with address 1 and write the new address value 2 Connect only your unit to a master controller or PC application and send the command Write Single Register to address 0 Modbus broadcast address and write a new address value The next two registers 2 and 3 contain Modbus settings Changing these registers you change the communication settings The default Modbus settings are 19200 E 1...

Page 16: ...ly in timer mode and or logic mode The default value is 60 60 seconds The register values can vary from 0 to 200 0 200 seconds This setting is accessible only in Modbus mode The working time is equal to the sum of the kick start soft start duration and the time value of the operation timer When a working time expires only a remote control input or analog input can restart the unit The next holding...

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