Emerson MP550A4R - Figure 4-2 Power Connections for 575 V; 600 V; 690 V Drives

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34 Mentor MP User Guide
www.controltechniques.com Issue: 3
Figure 4-2 Power connections for 575V / 600V / 690V drives
1. End user must provide 230 / 115Vac supply for the internal fans on frame sizes C and D, see section 4.12 on page 49.
* For fuse ratings refer to section 4.6 Cable and fuse size ratings on page 38.
** The transformer must have zero phase delay.
***
Main
AC Supply
Semiconductor
fuses
L1 L2 L3
L1 L2 L3
Isolator
E1
E3
L12 L11
F+
F-
Line
reactor
61
62
63
RLY2
A1
A2
DC fuse
for 4Q only
Field
on / off
21
22
23
24
25
26
27
28
29
30
31
24V
Drive
enable
Line
contactor
Input power
terminals
Armature
terminals
Auxiliary connections
Control connections
Motor
Fan supply (where applicable)
Line
contactor
coil
250Vac
maximum
***
575 / 690Vac
480Vac
maximum
10A
10A
**
Branch
fuses
Branch
fuses
MA1
MA2
1