The pump is a class A product.In a domestic environment, this product can cause radio in-
terference. In this case, users must take appropriate measures.
Electrical safety
The pump motor is protected against overload by the current limitation of the variable speed drive in
electronic drive unit (in case of overload, the speed decreases automatically).
When there is a hazard due to accidental contact with liquids, gases or solids, you must install a hard-
wired emergency stop circuit to cut the power supply.
►
Never override these interlocks during installation, use, or maintenance
.
During the pump stop following a fault, the variable speed drive is switched off and the pump is put in a
safe condition. To restart the pump, you must:
►
Wait until all moving parts have stopped
before switching the power off.
– Set the switch on the 48 VDC external power supply to
O
.
► Wait approximately 15 seconds.
► Correct the cause of the fault.
► Restore power supply.
– Set the switch on the 48 VDC external power supply to
I
.
5.9.1 Customer electrical installation protection
Differential circuit breaker at the AC/DC power supply input
In the event of an insulation defect, you must install a differential circuit breaker to protect personnel
(see chapter "Electrical characteristics").
The power circuit used to supply the installation must be fitted with a breaker complying with the
IEC 60947-2 curve D standard whose short circuit cut-off capacity is at least 10 kA. This protection de-
vice should be in close proximity to the pump (no further than 7 m away) and in line of sight of the prod-
uct.
The customer must provide a correctly-rated main circuit breaker: see chapter "Electrical characteris-
tics".
This AC/DC power supply is Class 1 equipment and therefore must be grounded. The user must make
sure the installation has an earth wire properly connected to the ground.
Power supply via a 48 VDC network
To supply the pump using a 48 VDC network, see chapter "Electrical characteristics”.
Grounding
When necessary, the installer must provide dual protection in addition to the existing one. It consists of
an uninsulated braid or a separate green/yellow conductor with a minimum section 3 mm
2
(9AWG). The
impedance between the pump body and the ground connection point must be < 0.1 Ohm at 25 A.
► Use an M4 x 8 screw and a locking washer fitted to the hole on the pump (mark
) to secure
the conductor to the pump and to the installation’s ground connection point.
Absence of emergency stop
The vacuum pump is not equipped with an emergency stop device (EMS) or a lock-out de-
vice. The vacuum pump is designed to be integrated into equipment fitted with an emer-
gency stop device.
● When activated, the EMS of the equipment must switch off the vacuum pump.
Operation in local mode
There is no device to warn that the pump is operating in local mode.
● Provide a means to warn about local mode operation when the pump is not integrated
neither controlled by the equipment.
Installation
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