Installation
44 300855170_002_C8 - 08/2021 - © Leybold
3.11 Electrical connection
Observe Safety Information 0.2
Unplug any connectors only when the mains voltage is switched off and
the pump does no longer turn.
The frequency converter is not equipped with its own emergency shut
down switch. This may lead to an unwanted pump start-up.
Install an emergency shut down switch in the system. The emergency shut
down switch must be
■
present in the building installation
■
suitably arranged and easily accessible for the user
■
marked as the disconnecting device for this device.
The pump can be operated with 48 V DC power supply. Take note of the
performance data specified in Section 1.3.1.
+ 48 V DC
0 V DC
Gehäuse
Fig. 3.14 Power supply connector
Pin 1 = 48 V DC
Pin 2 = 0 V
GND = Housing
Housing
The cable protection and voltage drop and the minimum supply voltage must
be adhered to when wiring.
When operating more than one pump with a single power supply, it may be
necessary to fuse each pump separately due to the line protection.
CAUTION
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