Operating instructions
A4D630-AF03-03
Translation of the original operating instructions
We recommend the use of 105 °C cables. Ensure that the minimum
cable cross-section is at least
AWG 26 / 0.13 mm².
Protective earth contact resistance according to EN 61800-5-1
Compliance with the resistance specifications according to EN 61800-5-
1 for the protective earth connection circuit must be verified in the end
application. Depending on the installation situation, it may be necessary
to connect an additional protective earth conductor by way of the extra
protective earth terminal provided on the device. The protective earth
terminal is located on the housing and provided with a protective earth
symbol and a hole.
4.2.2 Residual current circuit breaker (RCCB)
If the use of a residual current device (RCD) is required in your
installation, only pulse-current sensitive and/or AC/DC-
sensitive residual current devices (type A or B) are
permissible. As with variable frequency drives, residual current
devices cannot provide personal safety while operating the
device.
4.2.3 Voltage control
With speed control using transformers or electronic voltage
regulators (e.g. phase control), excessive current may occur.
In addition, depending on how the device is installed, noises
can occur with phase control.
4.2.4 Variable frequency drive
Please use a variable frequency drive only after consultation with ebm-
papst.
When a variable frequency drive is used for speed adjustment, the
maximum safe operating speed (see 3.2 Nominal data) may not be
exceeded.
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 Connection in terminal box
4.3.1 Preparing cables for connection
Only strip the cable as far as necessary, ensuring that the cable gland is
sealed and there is no strain on the connections. For tightening torques,
see Chapter 3.1 Product drawing.
NOTE
Tightness and strain relief are dependent on the cable
used.
→ This must be checked by the user.
4.3.2 Connecting wires to terminals
;
Remove the cap from the cable gland.
Only remove caps where cables are fed in.
;
Route the wire(s) (not included in scope of delivery) into the terminal
box.
;
First connect the "PE" (protective earth).
;
Connect the wires to the corresponding terminals.
;
Connect the thermal overload protector (TOP).
Use a screwdriver to do so.
When connecting, ensure that no wire ends fan out.
The terminal strip is equipped with a penetration guard.
;
Insert the leads until they meet resistance.
;
Seal the terminal box.
4.3.3 Cable routing
Water must be prevented from reaching the cable gland along the cable.
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.
Fans installed lying flat
Make sure the cable is routed in a U-shaped loop.
Fig. 2: Fan installed lying flat, cable routed in a U-shaped loop.
Item no. 10612-5-9970 · ENU · Change 86520 · Approved 2017-03-16 · Page 7 / 12
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