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6. Installation and commissioning
First, check that the voltage stated on the PIREG-D2 resistance temperature controller matches the
mains voltage, and that the transformer primary current matches the controller's load current capability.
EN:
For safe operation, the PIREG-D2 resistance temperature controller may only operate in
symmetrical TN and TT networks.
FR:
Pour un fonctionnement sûr, le régulateur de température à résistance PiREG-D2 ne peut
être exploité que sur des réseaux symétriques TN et TT.
EN:
During installation, an overcurrent protection device must be provided in front of the mains
input of the PIREG-D2.
The PIREG-D2 must be connected to the mains voltage via an easily accessible and marked
isolating device (e.g. switch or circuit breaker).
FR:
Pour l’installation, un disjoncteur à maximum doit être prévu devant l’entrée du réseau du
PIREG-D2.
Le PIREG-D2 doit être raccordé à la tension du réseau via un disjoncteur marqué et facilement
accessible (par exemple un interrupteur ou un sectionneur de puissance).
6.1. Installation
The PIREG-D2 resistance temperature controller is only suited for use in a switch cabinet. Open opera-
tion is not permitted.
The PIREG-D2 is intended to be used in a safety enclosure which should confirm with requirements for
protection against the spread of fire, against electrical shock, against mechanical hazards and should
have adequate rigidity according to UL 61010-1.
The controller is designed for mounting in a control panel and the current transformer is mounted on
35mm mounting rails as per EN 60715 (EN 50022). When mounting the controller, observe a minimum
distance of at least 20 mm to adjacent devices and cabling on all sides.
Heat dissipation from neighbouring devices must be taken into account (note the ambient temperature
specifications).
6.2. Configuring the settings
The following settings must be made in the display unit of the PIREG-D2 after switching on but before
commissioning.
Heating ramp
Calibration mode
Temperature coefficient
Transformer type
Temperature reference time
Reference temperature
Temperature range
Temperature coefficient correction
Prior to initial operation, the correct temperature coefficient must be set for the heating conductor being
used. Setting too high a temperature coefficient may lead to overheating or melting of the heating conduc-
tor.
In addition, the temperature reference time, the temperature range, the calibration type and the trans-
former type must be set. If necessary, the variable reference temperature must be set and the tempera-
ture coefficient correction must be also be activated. The heating ramp can be adjusted before or after
calibration.
Then the PIREG-D2 controller can be calibrated. The settings for the sequence control, monitoring, relays
etc. can be specified before or after calibration.
6.3. Connection of the PIREG-D2
The resistance temperature controller PIREG-D2 must be connected according to the connection dia-
gram, depending on the type of actuator used. It is not necessary to pay attention to the polarity of the
current Ir and voltage Ur measurement cables to the heating conductor, nor to how the sealing transform-
er is connected on the primary or secondary side.
When connecting a target value potentiometer, it is vital to pay attention to the correct phase sequence.
In the 0 °C setting, the resistance between terminals 20 and 23 must be 0 Ω.
The measurement cables for voltage measurement Vr must be connected directly to the heating conduc-
tor and have to be twisted. (
50 turns/m). The cables from the sealing transformer should be connected
to the heating conductor with cable lugs and not with plug-type connections. Ensure that the conductors
are of adequate cross-section. No additional components, such as fuses, switches or resistance-loaded
ammeters should be integrated in the secondary circuit of the sealing transformer.
6.4. Control inputs
Ensure that there are no high signals applied to the start and preheating inputs before the controller is
started up for the first time. (If the calibration to an altered heating band is not appropriate, it may over-
heat).
6.5. Connecting to the mains voltage
The green LED “Mains” will light up after the controller were connected to the mains voltage. Then the
display unit switches in the fault mode with the error message “Data error, saved calibration values do not
match the setting” as settings were not yet made and the factory settings of the display unit and controller
are different. The necessary settings via the menus or interfaces and calibration must now be carried out.
The symbol “Pause” should be displayed following a successful calibration.
