Technical Manual Temperature-, Humidity-, Pressure-Controller TAR x260
Page 3
Operating
Operating Elements
Parameters (setpoints, times, etc.)
All selectable parameters hold a parameter number (e.g. P03), you
will find a listing on the next page.
Calling up and editing
Press key 'P' ............. parameter number appears
Use '
ñ
/
ò
' ................. select desired parameter
Press "P" again ........ parameter value appears
Use keys '
ñ
/
ò
' ......... adjust parameter value
Press 'P' again ......... value is stored, back to parameter no.
Auto scrolling
Hold '
ñ
/
ò
'-keys to scroll values automatically.
Manual Defrost
In cold storage controller mode (P14=4) and while the actual control
value is displayed, a defrost event can be initiated by holding the '
ñ
'-
key for more than 2,5 seconds.
The defrost event can be terminated holding the '
ò
'-key for more
than 2,5 seconds.
Detecting controller type without a type label
1. Switch off supply voltage
2. Push and hold key 'P'
3. Switch on power again.
Now the display shows one after another :
"SOF" (Software), "260" (for x260), year, month and day of
manufacturing.
flashing:
Data transmission
flashing:
2nd setpoint active
Programming
key
minus-
indicator
Stage 2 ON/OFF
decrease
values
T A R
2
Stage 1 ON/OFF
increase
values
1
A l a r m
E L R E H A
4
P
If ON in op-mode 3:
Setpoint just shifted
If ON in op-mode 4:
Defrost runs
3
All TAR-versions are marked in the same way
Unlock Keys
To prevent un-authorized persons from editing parameter values, there
is a locking function which allows only the most important parameters
to be changed at any time. All other parameters must be unlocked
beforehand. This means that at parameter P43 a certain value is to be
set (see parameter listing) :
Press key "P" ............. parameter number appears
Use "
ñ
/
ò
" ................. select code parameter (P43)
Press "P" again ......... parameter value appears
Use "
ñ
" ..................... set value to --88--
Press "P" again ......... value is stored, back to parameter no.
If no key is hit for about 4 minutes, the access code is cancelled and the
editing function is locked automatically.
Error Display / Error Behaviour
Display shows "oFF":
The controller unit is disabled via
digital input OK1 or via network
interface (DDC).
If the controller has been de-activated via interface before, it can be
waked up manually by holding the '
ò
'-key for more than 3 seconds.
Display flashes, without minus sign:
Using temperature sensors=
One of the two sensors is
broken or wrong type
Current input = > 25mA
Display flashes, with minus sign:
Using temperature sensors =
One of the two sensors has short-circuit or wrong type
Current input = < 2mA
All control relays (K1 + K2) switch off immediately. Additionally to
the flashing display, an alarm delay runs (P31), after this timer is
run run down, the alarm relay (K4) will be activated.
If sensor errors occur, P31 is always < 1min.
