Siemens MICROMASTER Vector Series - 2. INSTALLATION - MICROMASTER Vector; 2.2.2 Power and Motor Connections - Frame Size B

22
. .
II
NN
SS
TT
AA
LL
LL
AA
TT
II
OO
N N
– –
MM
II
CC
RR
OO
MM
AA
SS
TT
EE
R R
VV
ee
cc
tt
oo
rr
EE
nn
gg
ll
ii
ss
hh
© Siemens plc 1999© Siemens plc 1999
G85139-H1751-U529-D1G85139-H1751-U529-D1
1919
4/8/994/8/99
5. 5.
Ensure that the power source Ensure that the power source
supplies the correct voltage supplies the correct voltage
and is designed for the necand is designed for the nec
essary current.essary current.
Ensure that the appropriate circuit-breakers with the specified current rating are connected between theEnsure that the appropriate circuit-breakers with the specified current rating are connected between the
power supply and inverter see section 8.power supply and inverter see section 8.
6. 6.
For the power For the power
input, use a input, use a
3-core cable for 3-core cable for
single phase unisingle phase uni
ts or a 4-core ts or a 4-core
cable for three cable for three
phase units. Forphase units. For
the cross-section of each core see section 8.the cross-section of each core see section 8.
7. 7.
Use Use
a 4-core a 4-core
screened cable screened cable
to connect to connect
the motor.the motor.
8. 8.
Carefully measure Carefully measure
and cut the and cut the
cable leads cable leads
for power cfor power c
onnections, motor conneconnections, motor connec
tions and brakitions and braki
ng resistorng resistor
connections (if required) before feeding the screened cables through the glands in the metal gland plateconnections (if required) before feeding the screened cables through the glands in the metal gland plate
provided (see Figure 2.2.2) and securing the glands.provided (see Figure 2.2.2) and securing the glands.
9. 9.
Carefully measure and Carefully measure and
cut the cable cut the cable
leads for the leads for the
control connections control connections
(if required). Feed the (if required). Feed the
control cablecontrol cable
through the correct gland (see Figure 2.2.2) and secure the gland to the metal gland-plate.through the correct gland (see Figure 2.2.2) and secure the gland to the metal gland-plate.
10. 10.
Carefully feed the power and control leads through the correct holes in the inverter housing.Carefully feed the power and control leads through the correct holes in the inverter housing.
11. 11.
Secure the metal gland plate to the underside of the inverter. Fit Secure the metal gland plate to the underside of the inverter. Fit
and tighten the earth securing screw.and tighten the earth securing screw.
12. Connect the power input leads to the power terminals L/L1 - N/L2 (1 phase) or L/L1, N/L2, L3 (3 phase),12. Connect the power input leads to the power terminals L/L1 - N/L2 (1 phase) or L/L1, N/L2, L3 (3 phase),
and earth (PE) shown in Figure 2.2.1 and torque down the screws.and earth (PE) shown in Figure 2.2.1 and torque down the screws.
13. Connect the motor leads to the motor terminals U, V, W and the earth (PE) (13. Connect the motor leads to the motor terminals U, V, W and the earth (PE) (
shown in Figure 2.2.1)shown in Figure 2.2.1)
andand
torque down the screws.torque down the screws.
Note:Note:
For operation with cables longer than 25m see section 1.3.4For operation with cables longer than 25m see section 1.3.4
14. If required, secure Faston connectors to the braking resistor leads and fit the connectors to the B+/DC+14. If required, secure Faston connectors to the braking resistor leads and fit the connectors to the B+/DC+
and B- terminals under the inverter.and B- terminals under the inverter.
15. 15.
Connect the control leads as shown in Figures 2.2.4 and 2.2.6.Connect the control leads as shown in Figures 2.2.4 and 2.2.6.