Device functions
Version 2
UPT-6010
Seite 35
8.7.10 Maximum start temperature
You can set the required maximum start temperature in the parameter data. This temperature is the maximum
allowable actual value at the start time. The value is determined by the controller at the start of each impulse and
compared with the set value.
This function serves to monitor the cooling circuit.
If the cooling system is intact, curve 1) applies. If the cooling system is faulty, curve 2) applies instead because
the water is no longer cooled. The temperature never falls below the value set with this menu step. In this case,
the controller ignores the next heatup command. Error code 305 appears and the alarm relay is switched
(
section 8.19 "Error messages" on page 46). The idea is to prevent the UPT sealing bar from being destroyed.
The maximum value of the setting range is limited by the specified maximum value and the set temperature range.
Both values are selected in the parameter data.
Setting:
It is advisable not to set this parameter until you have determined the optimum heatsealing parameters (temper-
ature and cooling time) for production. The start temperature should be set to approximately 50% of the heat-
sealing temperature for the trial run, to enable the optimum working parameters to be established correctly.
8.7.11 Temperature diagnosis
An additional temperature diagnosis can be activated in the parameter data (GSDML file). The UPT-6010 checks
whether the actual temperature is within a settable tolerance band ("OK" window) either side of the set tempera-
ture. The high (
) and low (
) tolerance limits are the same as for the "Temperature OK" function
(TO bit
section 8.6.6 "Temperature OK (TO)" on page 27). The limits are set to -10 K and +10 K by default.
If the ACTUAL temperature is inside the specified tolerance band when the START signal is activated, the tem-
perature diagnosis is activated as well. If the ACTUAL temperature leaves the tolerance band, the corresponding
error code (307, 308) appears and the alarm relay is switched (
section 8.19 "Error messages" on page 46).
Set start
Time
temperature
Temperature
2)
1)
Start temperature if cooling
system faulty
Start temperature if cooling system OK
Δϑ
high
Δϑ
low
Set
Set+
Δϑ
low
Set+
Δϑ
high
ACTUAL temperature
Time
Error code
307
