INSTRUCTION MANUAL DAAB AUTOMATIC CONTROL UNIT EP105
7
Revision 3
Connection
CAUTION
: Important safety instructions Follow all instructions,, as incorrect installation can
cause serious injury.
• Safety
!
The electrical connections may only be made by a qualified electrician, who accepts
responsibility for ensuring that the electric connections have been carried out in accordance
with the applicable standards and this instruction manual.
Always disconnect the power supply when connecting the control box.
Mechanical installation of the control unit must be carried out by persons with the necessary
knowledge for the task.
• Installation
The location of the control unit must be selected with regard to the protection class of the
enclosure, at least IP54. A heating and/or cooling element should be included if necessary to
maintain the operating temperature stated in the technical specification.
The control unit must be securely fixed to a wall or a bracket intended for this purpose, using
screw joints. The fixing holes are on the rear or underside of the enclosure. Cables into and out
of the enclosure must have cable entry seals that are approved for use with the particular cable.
Cables outside the enclosure must be securely fixed to the surrounding structure. They must
not hang loose and there must be no possibility of them catching on passing objects.
• High current
The power supply must be connected via a lockable main switch, and have a T10A protection.
Connect the incoming earth to the earth bar.
Check that the power supply and motor voltage are compatible.
• Motors
The largest motor that can be connected is 1.5 kW (3-phase 3x400 V).
See "Commissioning" for details of how to check the direction of rotation.
Connecting motors to EP105
Supply 3x400V with neutral
N T1 N L1 L2 L3 U1 V1 W1
U2 V2 W2
O
ut
let
230V
3x400V
+
N
Fus
e max T10A
U1
V1
W1
W2
U2
V2
U1
V1
W1
W2
U2
V2
Supply to control unit
Supply to motors
Control unit
In/Out
Power
Motor 1
Motor 2
Switch V1 and W1 and/
or V2 and W2 if the motor
runs in the wrong direction.
3-phase motor
Y-connected
3-phase motor
Y-connected
Supply 3x230V without neutral
O
ut
let
230V
3x230V
Fus
e max T10A
U1
V1
W1
W2
U2
V2
U1
V1
W1
W2
U2
V2
N T1 N L1 L2 L3 U1 V1 W1
U2 V2 W2
Control unit
In/Out
Power
Motor 1
Motor 2
Supply to control unit
Supply to motors
3-phase motor
D-connected
3-phase motor
D-connected
Change of phase
sequence if the load
guard value shows fault.
Switch V1 and W1 and/
or V2 and W2 if the motor
runs in the wrong direction.