Operating instructions
K4E400-AC11-13
Translation of the original operating instructions
4.2.2 Voltage control
NOTE
Current overshoots may occur if speed control is implemented
by transformers or electronic voltage regulators (e.g. phase
control). Depending on the type of installation of the device,
noise and vibration may also occur in the case of phase
control. Vibration can lead to bearing damage and thus
premature failure.
4.2.3 Variable frequency drive
Please use a variable frequency drive only after consultation with ebm-
papst.
For operation with variable frequency drives, install sinusoidal
filters that work on all poles (phase-phase and phase-ground)
between the drive and the motor.
During operation with variable frequency drives, an all-pole
sine filter protects the motor against high-voltage transients that
can destroy the coil insulation system, and against harmful
bearing currents.
Heating of the motor due to use of a variable frequency drive must be
checked in the application by the customer.
4.3 Plug connection
4.3.1 Making supply connections
;
Check your connector's pin assignment.
;
Connect the built-in connector with the mating connector.
;
Ensure that the connector is properly engaged.
4.4 Connection via terminal strip
4.4.1 Connecting wires to terminals
WARNING
Live terminals and connections even with device
switched off
Electric shock
→ Wait five minutes after disconnecting the voltage at all poles
before opening the device.
;
Insert the wires into the terminals, see
Chapter 4.5 Connection diagram.
NOTE
Damage caused by moisture penetration.
Moisture can penetrate into the terminal box if water is
constantly present at the cable glands.
→ To prevent the constant accumulation of water at the cable
glands, the cable should be routed in a U-shaped loop
wherever possible.# If this is not possible, a drip edge can
be produced by fitting a cable tie directly in front of the cable
gland for example.
Item no. 15648-5-9970 · ENU · Change 86552 · Approved 2016-08-25 · Page 7 / 10
ebm-papst Mulfingen GmbH & Co. KG · Bachmühle 2 · D-74673 Mulfingen · Phone +49 (0) 7938 81-0 · Fax +49 (0) 7938 81-110 · [email protected] · www.ebmpapst.com