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Fig. 1 – Crompton Controls M20 User Manual

Page 13

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12

Wiring

Emotron AB 01-2551-01r4

Fig. 1

Connection example

Please use the enclosed plastic (rubber) insert (if ordered, optional) to cover the
monitor terminals.

NOTE: If the START/STOP is connected as per Fig. 1, it is recommended that
terminals 6 and 7 be bypassed during programming. After the programming
is completed the bypass must be taken out. Make sure that the monitor
voltage range e.g. 3x380-500 VAC matches the connected motor/line
voltage, e.g. 3x 400 V.

M20

A+

A-

R1

R2

C

L1

L3

L2

S2

S1

DIG

{

L1
L2
L3

K1

U

V

W

M

K1

K1

3

4

9

11

13

1

2

6

7

8

5

CTMxxx

NOTE: In power
down, both relays
are always N.O.

-Reset

-Auto set
- Block

PRE-
ALARM

NOTE: Monitor
voltage see

Note below.

N (alt. 48 VDC+)

Max. 240 VAC (alt. 0 VDC-)

Please see CTM
information

on Page 11.

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