Controller operating manual
15.11.2020 – Version 1.1
TCS.2 series –
thermofin
®
control system 2
nd
generation
Page: 29/162
Operating manual - translation into English © thermofin GmbH
Setpoint changeover control
The program differentiates between two editable setpoints. Can be set in the
Main menu
Setpoints
(see also chapter 5.6 “
”). These are “Setpoint 1 – NC – normal cooling” and “Setpoint 2 –
FC – free cooling” or “Setpoint 2 – HR – heat recovery” for condensers.
Signal type:
Binary
0 = NC - normal cooling
1 = FC – free cooling / HR - heat recovery
Options:
Via terminal *
+ 24 V DC at terminal X7.2 (DI-2), see chapter
1.4 (circuit diagram TCS.2)
Via AT (ambient
temperature)
The switching of the setpoint is controlled by
the ambient temperature.
The switching thresholds are set in the
Main
menu
Setpoints
Setpoint switch.
OT
.
However, this is only displayed after the
selection “Via OT” (see also chapter B)
Via bus
The type of communication bus is set in the
Device settings
BMS bus system
. See also
chapter 4.5 “
The following parameters apply to direct
communication via MODBUS:
Writing:
Register 1, bit 1 (Bool), (register value 2)
Reading NC1 (normal cooling 1) active:
Register 164, bit 0 (Bool), (register value 1)
Reading NC2 (normal cooling 2) active:
Register 164, bit 1 (Bool), (register value 2)
Reading FC1 (free cooling 1) active:
Register 164, bit 2 (Bool), (register value 4)
Reading FC2 (free cooling 2) active:
Register 164, bit 3 (Bool), (register value 8)
Reading HR1 (heat recovery 1) active:
Register 164, bit 4 (Bool), (register value 16)
Reading HR2 (heat recovery 2) active:
Register 164, bit 5 (Bool), (register value 32)
Reading HP1 (heat pump operation 1)
active:
