4
Commissioning the instrument
4.1 Displays and controls
LC display
3-digit 9-segment display, 13 mm high, and symbols for the
temperature unit, h, min, s, defrosting and heating, with red
background lighting.
LED K1, K2 LED K1/K2 lights up when relay K1/K2 is energized.
LED K1/K2 goes out when relay K1/K2 is de-energized.
Keys
Setup
The instrument is linked to the PC via a PC interface with
TTL/RS232 converter and adapter (3 pins).
interface
h
Connect supply voltage – all segments light up twice as a test (segment test).
When everything has been connected up correctly on the instrument, the present process value will be shown.
If an alarm message appears, see Chapter 7 "Alarm messages".
The relay operates according to the controller type that was set, see Chapter 4.2 "Setting the instrument functions
(parameter level)".
for start-stop
in heating and cooling operation
programming
increase value
select operational status in enabling level
decrease value
select operational status in enabling level
9