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Temperature controller 70304G | 1.00.02
17
15.3 COMMISSIONING WITH HEATED FOREIGN COMPONENTS
Commissioning takes place as described in chapters 16.1 and 16.2. The parameters for
SP
,
ALSE,
Lo-t, Lfun, Fnct, rASL, SenS
and
Lin
must be entered for the respective component (see chapter 12
and 13).
The parameter
rASL
must be determined. For this purpose, the time for heating the unit until the set-
point temperature is reached must be measured.
This is then followed by (empirical value):
rASL = 0.8 (setpoint temperature/rate of temperature
rise)
The calculated rASL value must be entered rounded.
After entering the parameters, a self-optimization, described in chapter 15.2, has to be operated.
16
LOW TEMPERATURE ALARM AND EXCESS TEMPERATURE LIMITATION
The controller type
70304G
is adjusted and wired so that it uses relay 2 as a low temperature alarm
output and relay 1 as an excess temperature limitation with permanent deactivation.
Both alarms are indicated on the controller front panel by the respective number (1 or 2)
extinguish-
ing
. This takes place if the setpoint temperature is higher or lower than 10 °C.
Operating state
1
2
3
Heating up
off on on/off
Normal
heating on
on on
on
heating off
on on
off
Alarm
X
off
X
16.1 RESTARTING AFTER EXCESS OR LOW TEMPERATURE ALARM
In order to restart the unit after a temperature alarm with permanent deactivation, the cause of the
alarm must initially be remedied.
With not programmed ramp functions
, an alarm reset must take place as follows:
•
Press
EXIT
and
keys simultaneously or
•
Switch off and on the mains voltage.
With programmed ramp functions
, an alarm reset must take place as follows:
•
If the actual value is <±10°C to the setpoint press
EXIT
and
keys simultaneously or
•
Switch off and on the mains voltage.
In case of an alarm reset by switching off and on the mains voltage the ramp start value is equivalent to
the actual value.
