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Electronic control description,
Data communication The controller has an RS 485 communication line with an embedded ModBus protocol.
Cooling setpoint
Reset and boot
10
This interface has galvanic insulation.
Communication settings:
Baud rate
9600 baud
Bit
8 bit
Stop bit
1 bit
Parity
Non
Cooling set point can be set between 20-40 °C in steps
of 5°C. with the set point dial on the front of the unit.
By pressing the reset button for five seconds, the controller enters a reboot and test
phase
Step
Description
1
OFF
2
Int.fan
3
Ext.fan
4
Heater
5
Alarm
6
Compressor
A duration of 2 minutes and 15 seconds in total.
continued
RS 485 specification
Eva.fan
Con.fan
Off
Off
On
Off
(full speed)
On
On
(full speed)
(full speed)
On
On
(full speed)
(full speed)
On
On
(full speed)
(full speed)
On
On
(full speed)
(full speed)
Heater
Alarm
Comp. Duration
Off
Off
Off
Off
Off
Off
Off
Off
Off
On
Off
Off
On
On
Off
On
Off
On
10s
30s
30s
10s
10s
45s
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