PIREG 545 cUL Operators Guide 2021
22
When a 24VDC signal is applied to the preheat input (22) between two sealing cycles or the Preheat-
Contact input (19) is connected to AGND (2), the PIREG
®
-545 regulates the heat seal band temperature to
the set preheat temperature.
NOTE:
With Preheat is active all menu screens, except screen 101 “Set
Temp”, are locked. No adjustments are allowed because the controller is in the ON state. Remove
the Preheat signal to enable programing changes.
5.8.3. Autocal Start Input
:
The Autocal Start input (25) provides two programmable functions:
Calibration-start:
With a high signal at the Autocal Start input (25) in the Off and Fault states, the
PIREG
®
-545 switches to the auto-calibration state. Here the PIRGEG-545 ambient temperature
reading is adapted to the combination of the heat seal band and sealing transformer. During the
controller's calibration function, the signal can be reduced to low.
Measurement pause:
In Advance Configuration menu 318, the Autocal input can be programmed
to measurement pause. With a high signal at the Autocal Start input (25) in the Off state, the
PIREG
®
-545 stops the resistance measurement making it possible to interrupt the heat seal band
circuit without generating an alarm. (from V1.00/1.07/1.29/1.23).
5.8.4. Reset Input
:
The Reset input (26) provides two programmable functions:
Reset Input:
With a high signal at the Reset input (26), the PIREG
®
-545 is reset to the Power On
state in the event of a fault even without switching off at the mains.
