TRA-F12x-A
C
ONFIGURATION
Doc: 70-00-0792B V1.3, 20220830
© Vector Controls GmbH, Switzerland
Page 13-34
Subject to change without notice
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V
ECTOR
5
Configuration (parameter options)
Content of chapter
Parameter usage _________________________________________________________________________ 13
Parameter number, resolution and data format ______________________________________________ 13
Modbus access (TRA-F121-A only) ________________________________________________________ 13
Setting controller parameter with user interface_________________________________________________ 14
Modbus settings (TRA-F121-A only) __________________________________________________________ 14
Parameter P00x overview _______________________________________________________________ 14
Operating options ________________________________________________________________________ 15
Parameter P1xx overview _______________________________________________________________ 15
Parameter P000 overview _______________________________________________________________ 16
Application modes: Wiring diagrams of outputs ______________________________________________ 16
System and output configuration ____________________________________________________________ 17
Parameter P2xx overview _______________________________________________________________ 17
Application modes: Valve control diagrams _________________________________________________ 18
Application modes: Wiring diagrams of outputs ______________________________________________ 19
Manual vs. auto heat/cool change ________________________________________________________ 20
3-position valve control ________________________________________________________________ 20
Fan extension time for electric heater _____________________________________________________ 20
Periodic fan kick ______________________________________________________________________ 21
Set points ______________________________________________________________________________ 22
Parameter 3xx overview ________________________________________________________________ 22
Temperature set point types ____________________________________________________________ 22
Control settings _________________________________________________________________________ 24
Parameter 4xx overview ________________________________________________________________ 24
Integral control (integral time) ___________________________________________________________ 24
on/off control ________________________________________________________________________ 24
on/off control for 4-pipe application heating and cooling mode __________________________________ 25
3-position control _____________________________________________________________________ 25
Fan control in automatic mode (on/off control) ______________________________________________ 26
Fan control in automatic mode (3-position control) ___________________________________________ 26
Temperature and digital inputs ______________________________________________________________ 27
Parameter P5xx overview _______________________________________________________________ 27
P500/502: 2 = Heat/cool changeover or floor temperature sensor (NTC or DI) ______________________ 27
P500/502: 3/4 = Occupation sensor_______________________________________________________ 28
P500: 5 = Door switch (DI) and P502: 3 or 4 = Occupation sensor (DI) ___________________________ 28
P500/501: 6 = Electric heater overheat sensor ______________________________________________ 28
P500/502: 7 = Dew point sensor _________________________________________________________ 28
P500/502 digital input assignment ________________________________________________________ 28
Load and store default settings ______________________________________________________________ 29
With user interface ____________________________________________________________________ 29
With Modbus _________________________________________________________________________ 29
5.1
Parameter usage
5.1.1
Parameter number, resolution and data format
Parameter number and Modbus data address are the same. They are listed in column “Par/Addr” as decimal number.
E.g. P001 is parameter 001 and has Modbus data address 1.
All temperature related parameters are given in °C for Modbus. Only in the user interface values can be shown in °F.
Parameters without multiplier have a resolution of 1. Parameters with multiplier 10 have a resolution of 0.1.
For example, the default value of the Comfort temperature set point (P300) is 20.0°C and the value read via Modbus is
200 (because multiplier 10 is used for P300).
The multiplier is only used for Modbus data access. On the user interface, the values are displayed in normal resolution.
Parameter with values below 0 (zero) are given as signed integer values.
5.1.2
Modbus access (TRA-F121-A only)
The controller supports the following Modbus function cods:
Modbus function code
Data
Read multiple register (0x03)
Read n registers (n x 2 bytes) starting from requested address.
Write register (0x06)
Write 1 register (2 bytes) at requested address.
Write multiple registers (0x16)
Write n register (n x 2 bytes) starting from sent address.
Note: The read/write capability of each parameter is defined in column “R/W”. Most parameters can
be read and written
defined as “R/W”. Read only parameters are defined as “R”.