GE Multilin MM300, Instruction Manual

Page: 59 / 198

CHAPTER 2: INSTALLATION STARTER TYPES
MM300 MOTOR MANAGEMENT SYSTEM – INSTRUCTION MANUAL 2–39
Figure 2-43: Autotransformer closed transition starter typical control wiring - IO_E
(expansion module in slot "E")
NOTE
NOTE:
The above drawing applies only to a high-voltage power supply. If a low-voltage (DC)
power supply is used, an appropriate DC voltage source must be used for this power
supply.
Autotransformer closed transition starter is a reduced voltage starter. Three motor
contactors R, 1S and 2S each controlled by a separate MM300 output relay are used to
perform this function. There are two options of this starter: 1S-2S and 2S-1S. For more
details please refer to chapter Autotransformer open transition starter in section
Configuration setpoints / Motor setpoints section of the manual.
NOTE
NOTE:
Connect AUX VT to the Control Supply for correct operation of the UV Restart feature and
correct input readings.
R
Field Stop
1S
1S
In
te
rl
o
c
k
R
MM300
Low Voltage
Motor
Manager
C1
C2
C3
C4
C5
C6
C7
C8
I/
O
M
od
ul
e-
Ty
p
e
E
C9
C10
C11
C12
C13
C14
IN
1
IN
2
IN
3
IN
4
IN
5
IN
6
Co
m
Re
la
y
1
Re
la
y
2
L
N
PSU
N L
GEMultilin
G
1S
AU
X
V
T
E1 E2 E3
Relay 1
E4
E5
E6
Relay 2
E7 E8 E9
Relay 3
E1
0
E1
1
E1
2
Relay 4
E1
3
E1
4
Not
Used
Expansion I/O Module - Type D
R 2S
Only for
2S-1S
sequence
2S
Field Start
2S
AC Control
Power
Lo
w
V
ol
ta
g
e
D
C
Su
p
p
ly
t
o
I
O
Typ
e
E
- +
Ba
si
c
853851A1.CDR