16502 PIREG-C2 Gerätebeschreibung mit EtherNet_IP Bussystem191017 - EN.docx/ Page 4 of 66
If series-connected heating conductors have to be used, the effect on the overcurrent reaction should be
taken into consideration if two opposite sealing bands touch each other.
1.6. Note on the sealing transformer
The sealing transformer must be configured according to EN 61558 (VDE 0570) resp. UL 5085 (isolating
transformer with reinforced isolation) and in a single-chamber design. All types and designs that comply
with the standards can be used as sealing transformers. The induction in the transformer's iron core must
not be reduced as is normally the case with primary side thyristor operation. A transformer with low losses
are disrupted less on the secondary side than with transformers that have low energizing currents. Thus
in applications with short heating and sealing times, stiff and generally larger transformers should be
used. Where a great deal of sealing is to be performed, a transformer with a primary voltage of 400 V is
advantageous, because this way, the switching capacity of the PIREG-C2's internal actuator is more likely
to be sufficient and an external actuator with solid-state relay will not have to be used.
Caution (EN): There must be sufficient protection against accidental contact if the transformer
is installed in a machine frame. Furthermore, ensure that water, cleaning liquids or conducting
liquids do not come into contact with the transformer. The conductor wiring cross sections
should be designed to match the actual currents. Non-observance of these notes may result in
impairment of the electrical safety.
Attention (FR): Si le transformateur est placé dans le corps de la machine, une protection
suffisante contre les contacts accidentels doit être prévue. De plus, il convient d’empêcher l'eau,
les solutions de nettoyage ou les liquides conducteurs d’entrer en contact avec le transfor-
mateur. Les sections des câbles doivent être conçues en fonction des courants réels. Le non-
respect de ces instructions compromet la sécurité électrique.
For best results, the transformer's performance and the secondary voltage must be suited to the heating
conductor. A short heat-up period is reached with of a high transformer output voltage. However, the volt-
age selected should not be too large so that not less than 12 controller measurements are needed for a
target temperature increase of 300°C when heating up (heat-up period 240 ms). For smaller heat-up
curves, correspondingly fewer measurements are necessary. (The PIREG-C2 takes a measurement eve-
ry 20 ms while heating).
The larger the transformer's secondary voltage for a given heating conductor, the more energy is fed into
the heating conductor, even in the OFF state. This is done by means of temperature measuring impulses,
which the controller regularly sends to the heating conductor. Therefore, the higher the secondary voltage
of the transformer the greater is the difference between the resting temperature and the ambient tempera-
ture in the OFF state.
1.7. Note on the current transformer
EN: The current transformer is an essential part of the control system. Only Toss current trans-
formers may be used. The current transformer may only be operated with ballast resistance.
The ballast resistance is integrated into the PIREG-C2. The current transformer must be mount-
ed in such a way that magnetic leakage fields from the sealing transformer or other leakage
fields do not affect the measurement.
FR: Le transformateur de courant fait partie du système de régulation. Seuls les transfor-
mateurs de courant Toss peuvent être utilisés. Le transformateur de courant ne doit être utilisé
qu'avec une résistance ohmique apparente. La résistance ohmique apparente est intégrée dans
le PIREG-C2. Le transformateur de courant doit être monté de telle sorte que les champs mag-
nétiques de dispersion du transformateur de soudage ou d'autres champs de dispersion n'influ-
encent pas la mesure.
Caution (EN): The used cable to the heating conductor can heat up the current transformer.
Attention (FR): Le conduit utilisé allant vers le conducteur de chaleur peut chauffer le transfor-
mateur de courant.
1.8. General assembly instructions
The PIREG-C2 resistance temperature controller is only suited for use in a switch cabinet. Open opera-
tion is not permitted.
The controller as well as the current transformer are mounted on 35mm mounting rails as per EN 60715
(EN 50022). When assembling the controller on the mounting rail, there must be a distance of at least 20
mm to the next device.
Heat dissipation from neighbouring devices must be taken into account (note the ambient temperature
specifications).
1.9. Maintenance
The PIREG-C2 resistance temperature controller does not require any special maintenance. However, an
occasional check or tightening of the connection terminals is recommended. Dust deposits on the control-
ler can be removed with dry compressed air once the power has been switched off.
1.10. Validity
The first device type (vw) delivered was the series 1.00 with the program version 1.01 for the electrically
separate side (ggg) and 1.01 for the instrumentation side (mmm). Supplements in this description which
are only valid from a later version and include the version, the notation Vvvv/ggg/mmm, e.g.
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