TR250
12410-0701-03
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14 / 18
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11
Trouble-shooting and remedies
11.1 Pre-Set ex works (WE)
Press button Set
► for 10 s when switching on supply voltage.
After that, the program
“
Pr1
...
Pr4
“ (from firmware -01:
Pr1
…
Pr6
) can be selected (see
“Default-Settings”)
and temperature display can be changed 1°C <--> 0.1°C <--> °F.
Ex works (factory settings) Pr 1 and 0.1°C are selected.
Display of program number
(from firmware -01): Press
Set ► for ≥ 4 s in display mode
11.2 Display
EEE
sensor interruption or over-range
-EE
sensor short circuit or under-range
11.3 Relay cannot be programmed
– Code Lock
The Code-lock can be activated as a protection against manipulation of the settings. The user can change
the PIN-Code.
You have forgotten the PIN? Make a code-reset by pressing button Set
► for 2 s when switching
on supply voltage:
Display: "
888
"; "
Cod
"; ""
oF
"; "
888
". Release button Set
►: Code = off, PIN = 504.
11.4 Displayed Temperature is different from Sensor-Temperature
1. Unit °C / °F correct? When switching on power supply
°C
/
0.1C
/
°F
is displayed for a short moment.
Change of unit see "Factory reset".
2. Check connected types of sensors and programmed types
11.5
Display Error „
Er1
or
Er2
“
Er1
Short-circuit in sensor or line
Er2
Break of sensor or line
Er3
and
Er4
are internal errors. Switch off and on the device and if necessary reset to one of the
programs. If the error cannot be cleared, the relay should be replaced and sent back to the factory.
11.6 Relay trips regularly without limit exceeded
Check if a time "
don
" is programmed for this relay at Test Relay "
tst
".
At Pre-Settings
Pr 2
and
Pr 3
(from firmware -01:
Pr2
,
Pr3
and
Pr6
) for relay K1
don
= 168 hours for
testing an fan once a week.
Remedy: change setting for
don
to 0.
11.7 Firmware version
Display of firmware version:
Press Set ► for 10 s in display mode.
HINT 1
: To return to display mode from any position of programming press button S
et ► for 2 s (last settings
will be stored).
HINT 2
: To set the actual programmed parameter to zero (000), press
„▲“ and „▼“ simultaneously for 2 s.