5. Commissioning / Shut-down Procedure
38
OM Hydraulic aggregate, Version 1.0 01/2013
Electric motor EP2 direction of rotation
The electric motor's direction of rotation cannot be checked on the motor shaft be-
cause this is concealed. Use the electric motor's fan wheel to check its direction of
rotation. It must be turning clockwise. If the motor is turning in the right direction of
rotation, the pressure relief valve will audibly trigger just after the motor is switched
on.
The direction of rotation can be changed using the phase changing switch in the
device plug.
1
Fan wheel's direction of rotation
2
Fan wheel
Fig. 5-3
Fan wheel's direction of rotation
Electric energy supply
The device must be connected to a worksite distribution board that satisfies the re-
quirements of IEC 60439-4 (EN 60439-4, VDE 0660-501).
The connection must be as follows:
TN-S system,
110 V / 230 V / 400 V AC
, 50 Hz with a residual current device
(RCD) triggered at 30 mA and overcurrent protection (OCP) with 16 A rated current
and characteristics C according to IEC 60898-1 (EN 60898-1, VDE 0641-11).
The hydraulic aggregate has a plug according to IEC 60309-2 (CEE17) for 16 A.
If the cable length required between the worksite distribution board and device is
more than 2 m, the S-Box protective equipment must be connected between this
board and the device. The cable length required between the S-Box protective
equipment and device must not exceed 2 m. Cable loops or windings are prohibit-
ed in both cases for distances of up to 2 m.
If a suitable worksite distribution board is not available, the S-Box protective
equipment must be connected in the connection cable. The cable length required
between the S-Box protection device and device must not exceed 2 m. Cable loops
or windings are prohibited for distances of up to 2 m"
The S-Box protective equipment is available from Darda GmbH as an accessory.
