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APPLICATION EXAMPLES
28 ME00070B TMS7 SERIES
8.4 Two Speed Motors
I 34
I 33
LEGE ND
K2A
K1M
REMOTE START RE LAY (HI GH SP EE D)
LINE CONTA CTOR (HI GH S PE ED)
K1A
REM OTE STA RT RELAY (LOW SP EE D)
K 2M
K 3M
S 1
LINE CONTA CT OR (LOW SP EE D)
STA R CONTA CT OR (HI GH SP E ED)
RES ET PUSHBUTT ON
NOTES
CONTA CTORS K 2M A ND K3M MUS T B E
ME CHA NICALLY INTERLOCKE D.
1.
K 1A
K2A
K 1A
K2A
REM OTE LOW S PE ED
STA RT INP UT
RE MOTE HI GH SP EE D
START INPUT
K 3M
K1A
K2MK2A
OUT PUT C
R11 R14
R12
A 3
THERM.
A1
A 2
S UPP LY
MOT OR
THE RM IS TOR
K1M
C2
C1
T1
T2
T3
E
L1
L2
L3
L1B
L3B
L2B
3 PHAS E
S UPP LY
K 3M
K 2M
T4
T5
T6
T 1
T2
T3
TO DUA L SP EE D MOTOR
DAHLANDER T YP E
SE E NOT E1.
K1M
K 3M
K 2M
K3M
K1M
CONTROL SUP PLY
CONTROL
S UP PLY
FLC S ELECT
K 1A
I44
I43
STARTK1M
RES ET
STOP
K 2M
S1
I22
I 21
I12
I 11
Description:
The TMS7 can be configured for control of dual speed Dahlander type motors. In this application the TMS7 is employed with a High Speed
contactor (K1M), Low Speed contactor (K2M) and a Star contactor (K3M).
On receipt of a High Speed start signal the High Speed contactor (K1M) and Star contactor (K3M) are closed. The TMS7 then controls the
motor according to the Primary Motor Parameter set. (Function Numbers 1~9)
On receipt of a Low Speed start signal the Low Speed contactor (K2M) is closed. The relay contact across Input A is also closed causing
the TMS7 to control the motor according to the Secondary Parameter set (Function Numbers 80~88).
Function Settings:
- Function 23. Relay Output C Functionality = 0 (Assigns the Trip function to Relay Output C)