7
7. Electrical
connection
Motor operating device
Type:
UEMC
40
K6_/1
Circuit diagram:
31 UEMC 187
The motor operating device can be connected to a
operating box or a control unit. Refer to chapter 9 and
15.
Protective m.c.b
The use of a protective mcb in the supply circuit to
the motor operating device is recommended. In order
that the mcb will protect the motor against overload,
the type is to be chosen for the respective voltage as
detailed in point 9.
Alarm circuit
Refer to suggested alarm unit, circuit diagram no.
31 UEMC 151... 154.
During normal operation the alarm points are under
voltage.
Alarm condition: When voltage disappears from the
circuit.
Reason for alarm:
- F1 has tripped
- S6 is open
- Voltage to control unit broken
An alternative alarm circuit can be coupled from the
auxiliary contact of the mcb. Refer to acces
sories,
point 9.
Separation of motor and control circuit
If the motor circuit is to be separated from the control
circuit, wire X1:1-3 and X1:2-4 is to be discon nected,
and a separate DC-voltage is to be ap
plied between
X1:3 and X1:4 in order to oper ate the unit.
Note that this could effect the operation of the alarm
circuit and m.b.c.
The electrical equipment of the motor operating device
are the motor and limit switches.
Type:
UEMC
40
K6_/2
Circuit diagram:
31 UEMC 205
The electrical equipment of the motor operating device
are the motor, limit switches and contactors.
Examples for system connections
The direction of control (ALT.A or ALT .B) is defi ned by
the alternative methods of mounting, see chapter 5.
ALT.A: Motor operating device on right side of the
disconnector
ALT.B: Motor operating device on left side of the
disconnector
Connection of UEMC 40 K6_/1 to:
Control unit:
ALT.A: 31 UEMC 151
ALT.B: 31 UEMC 152
Operating box: ALT.A: 31 UEMC 153
ALT.B: 31 UEMC 154
Refer to chapter 15.
Connection of UEMC 40 K6_/2:
ALT.A:
I-impulse
to X1:7
O-impulse
to X1:8
ALT.B:
I-impulse
to X1:8
O-impulse to
X1:7
Refer to chapter 15.
Control unit
Two types of control units are available with the same
electrical connection, but with different dimensions.
See point 9.
Control units: UEZJ 1-
UEZJ
1-/2
