18
CONNECTIONS
POWERDRIVE MD2R Installation guide
4948 - 2017.11 / d
en
3 - CONNECTIONS
• All connection work must be performed by
qualified electricians in accordance with the laws in
force in the country in which the drive is installed. This
includes earthing to ensure that no directly accessible
part of the drive can be at the mains voltage or any other
voltage which may be dangerous.
• The drive must be supplied via an approved circuit-
breaking device so that it can be powered down safely.
• The optional isolator supplied with the drive does
not isolate the drive input busbars. It must without
fail be associated with a circuit-breaking device in the
switchboard.
• The drive power supply must be protected against
overloads and short-circuits.
• Check that the voltage and current of the drive, the
motor and the mains supply are compatible.
• The voltages on the connections of the mains supply,
the motor, the braking resistor or the filter may cause
fatal electric shocks. The protective plates supplied with
the drive must always be installed correctly to protect the
user against direct electric shocks.
• Only one permanent magnet motor can be connected
to the drive output. It is advisable to install a circuit-
breaking device between the permanent magnet motor
and the drive output to eliminate the risk of hazardous
voltage feedback when performing maintenance work.
• See also the recommendations in section 7.
3.1 - Location of terminal blocks
3.1.1 - Location of the fuse boards
Depending on rating,
POWERDRIVE MD2R
may include one
or more identical fuses boards :
-
60T à 150T : 1 board
-
180T to 570T & 270TH to 500TH : 2 boards
- 600T to 1100T & 600TH to 900TH : 4 boards
- 1400T and 1700T & 1200TH and 1500TH : 6 boards
The fuse board location is specified in §3.1.4
Position the F8 fuse according to the mains supply
voltage
F1
F2
F3 F4 F5 F6
F9
F7
PX4
460V(T)
600V(TH)
480V(T)
690V(TH)
400V(T)
500V(TH)
P1
F8
400V(T) / 500V(TH)
460V(T) / 600V(TH)
480V (T) / 690V (TH)
P2
P3
P4
P6
P7 P8
Interface
board
output
Power
Input S1
Power
Input S2
External
power input
Fan
Control
Fan1
Fan2
Fan3
Fan4
Fan5
• On
POWERDRIVE MD2R
60T to 150T, the fuse board is
located over the chassis.
• On
POWERDRIVE MD2R
180T to 270T : the fuse board
is located on the side of the drive’s chassis. To reach the fuse
board, undo the 2 screws of the control terminal block to tip it
forwards.
• On
POWERDRIVE MD2R
340T to 1700T 270TH to
1500TH, please refer to §3.1.4 to located fuse board
3.1.2 - Electronics and forced ventilation
power supply
The control electronics and forced ventilation units are
supplied through a single-phase transformer which primary
is connected to terminals L1-L2 of the power supply. If
necessary, this transformer can be supplied with an external
power source (PX4 terminal block on fuse board).
The neutral of the electronics power supply must
not be connected to earth.
• Electrical characteristics :
Ratings
Voltage
Primary
T
400V±10% / 50Hz ou
460-480V ±10% / 60Hz
TH
525-690V±5% / 50Hz
Voltage
Maximum power
Secondary 1
(Electronics
power supply)
230 V
isolated
100VA
Secondary 2
(Forced
ventilation and
auxiliaries power
supply)
230 V
connected
to earth
60T to 75T :
P = 300VA
100T to 150T :
P = 500VA
180T to 270T :
P = 2x500VA
340T to 570T :
P = 2x1200VA
600T to 900T :
P = 4x 1200VA
1400T to 1700T : P = 6x 1200VA
270TH to 500TH : P = 2x 1200VA
600TH to 900TH : P = 4x 1200VA
1200TH to 1500TH : P = 6x 1200VA
3.1.3 - Characteristics of connection terminals
Refs.
Functions /
connections
Type of connection and
tightening torque
60T to 270T
Other ratings
L1, L2, L3,
ou R, S, T
Mains power
supply
M10 screw bolt - 20Nm
U , V, W
Motor outputs
PE
Earth
M10 bolt -
20Nm
M8 bolts -
12Nm
BR1, BR2
Braking resistor
(1)
M8 screw bolt - 12Nm
P4, P5
EMC
Commoning
link
Torx screws Ø20 - 4Nm
-
Control
block(2)
Spring terminal block
Do not exceed the indicated maximum tightening
torque.
(1) If the optional braking transistor is already installed
(2) The neutral of the electronics power supply must not be
connected to earth.
