Installation
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300407956_002_C1 - 01/2017 - © Leybold
Fig. 3.6 Mains wiring for CC-type pumps
Input voltage
Transformer TR1
Mains feed
Motor protection
switch
GND
3.6.2 CC-Type Pumps
Loosen the 2 screw on each side of the terminal box (cf. Fig. 3.6). Then
remove the box cover. Connect the mains as depicted. Re-attach the cover
and tighten the screws. CC-type pumps are designed for 380 – 460V cur-
rents only.
CC-type pumps are equipped with an EMO to enable the user to turn off the
pump in case of an emergency. The EMO signal may be accessed via the
potential-free contact EMO-2 (cf. circuit diagram, Fig. 3.7) for further use
within the customer provided control unit.
The CC pump’s thermal switches are monitored by the integrated protection
circuit cutting off the motor in case of overheating. There is no need for rewir-
ing, as the motor protection switch has already been pre-configured. By trig-
gering the motor protection switch or the EMO the pump will be deenergised
and must be restarted after troubleshooting.
The factory-integrated Pt 1000 temperature sensor (white cable) represents
an additional means for the operator to monitor the pump (recommended
warning at 85 °C; shut down at 100 °C; cf. Fig. 3.5).
CC-type pumps are equipped with a regulating transformer for dual voltages.
Select the corresponding feed terminals A1 at the regulating transformer TR1
depending on the voltage range used: 380 – 420V: terminal 415V; 420 –
460V: terminal 380V.
