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APPLICATION EXAMPLES
8.4 Two Speed Motors
L1
L1B
3 PHASE
L2
SUPPLY
L2B
L3
L3B
A1
A2
CONTROL
SUPPLY
SUPPLY
A3
K1A
I44
FLC SELECT
I43
I34
K1M
START
I33
K2M
I22
STO P
I21
S1
I12
RESET
I11
OUT PUT C
R11
K2A
REM OTE LOW SPEED
START INPUT
K1A
REMOTE HIGH SPEED
START INPUT
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)
-
28
K3M
SEE NOT E1.
K2M
T1
T2
T3
K1M
E
C1
MOT OR
THERM.
C2
THERM ISTOR
K2A
K2M
R14
K3M
K1A
R12
CONTROL SUPPLY
LEGEND
REM OTE START RELAY (LOW SPEED)
K1A
K1A
K2A
REMO TE START RELAY (HIGH SPEED)
K1M
LINE CONTACTOR (HIGH SPEED)
LINE CONTACT OR (LO W SPEED)
K2M
K3M
STAR CONTACT OR (HIGH SPEED)
S1
RESET PUSHBUTT ON
K2A
NOTES
1.
CONTACTORS K2M AND K3M MUST BE
MECHANICALLY INTERLOCKED.
T4
T5
T6
TO DUAL SPEED MOTOR
T 1
DAHLANDER T YPE
T2
T3
K3M
K1M
K3M
K1M
K2M
ME00070B
TMS7 SERIES
- Quick Links:
- Quick Start
- Programming Procedure
- Trip Codes
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