Controller operating manual
15.11.2020 – Version 1.1
TCS.2 series –
thermofin
®
control system 2
nd
generation
Page: 54/162
Operating manual - translation into English © thermofin GmbH
Control of ZA Modbus
wireless
Setpoint, status and fault messages are transmitted via Modbus. All
registers are written and read according to Ziehl-Abegg
specifications. The data transfer is realized by the TCS wireless
system instead of a signal cable. For setting the communication
parameters, see chapter 4.5 “
BMS (Building management system
0 – 10 V DC control
The setpoint is transmitted via an analogue 0 - 10 V DC standard
signal. The alarm relay outputs of the fans are connected to a digital
input. With up to 4 fans this is possible on the TCS basic unit (DI-5
to DI-8), see also chapter 4.3.1 “
With more
than 4 fans, no digital inputs are used on the TCS basic unit; one or
more digital CAN extensions are used instead (see also chapter
”).
Step switching
Unregulated AC fans are used which are controlled in up to 12
levels with a contactor circuit via digital outputs. With up to 4 fan
groups or external fault inputs, this is this is possible on the TCS
basic unit (DI-5 to DI-8), see also chapter 4.3.1 “
With more than 4 external fault inputs, no digital inputs are
used on the TCS basic unit; one or a maximum of two digital CAN
extensions are used instead (see also chapter 4.3.5
* Factory setting
Direction of rotation
This function enables the user to blow away leaves or other contaminants from the heat exchanger
by reversing the direction of rotation of the fans. It is controlled via a terminal or bus. See also chapter
Reversion of rotation control”
or 5.6.6 “
Speed reversion of rotation (ROR)”.
The following two options are available:
*
Clockwise rotation in normal operation. As soon as “Reversion of rotation” is
activated,
the fan rotates to the left.
Counter-clockwise rotation in normal operation. As soon as “Reversion of
rotation” is activated,
the fan rotates to the right.
* Factory setting