IF08CZ10 April, 2019
- 49 -
CIRCUIT OPERATION (cont’d)
Control Circuit for SM (Synchronous Motor) control
(1)Interface
SM control requires the use of an exciter. The exciter may be internal or external to the drive. The
interface to the exciter is shown below.
(2) Timing chart
There are 3 control modes.
Mode1 ”Initial position detection” : Initial position is detected when the motor is stopped.
Mode2 “Constant IQ starting”: This mode starts the motor without speed control. It uses the initial position
and current control with pre-set speed reference rate and current.
Mode3 “ZPS control” (zero-PS): Speed and phase angle are estimated by the motor voltage PLL. Once the
drive enters this mode it is in speed control and will follow the external speed reference.
0%
0%
0%
0%
MS_PLL_SW_SP
0PS Switch Speed
time
Field current
Stator current
I1_F
FC_FBK
Armature voltage
MAIN_VAC_F
Speed
SP_F
Mode3 : 0PS Control
Constant IQ
Acceleration
Initial position detection
MS_START_IQ
MS_FCR_INI
MS_FCR_IQACC
MS_CR_RATE
CR_RATE_ACC
LMT_SP_MIN
Operation lowest speed
Mode1 :
Mode2 :
B_FL_CMD
For protection
(Option)
1.0/100%
FC_REF
Field on/off command
Field current reference
DO
AOUT
Required
Field current feedback
1.0/100%
FC_FBK
FL_FOC
FL_READY
FL_RNTD
FL_FAULT
Drive
For protection
(Option)
Exciter
Field over current
Exciter Ready
Exciter Run
Exciter failure
DI
AIN
Summary of Contents for T300MTX
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Page 62: ...IF08CZ10 April 2019 40 CIRCUIT OPERATION cont d 6600V configuration ...
Page 78: ...IF08CZ10 April 2019 56 DRIVE INSTALLATION DRAWINGS Frame 0 drive lifting and assembly ...
Page 106: ...IF08CZ10 April 2019 84 DRIVE INSTALLATION DRAWINGS cont d Frame A2 drive lifting and assembly ...
Page 109: ...IF08CZ10 April 2019 87 DRIVE INSTALLATION DRAWINGS cont d Frame B2 drive lifting and assembly ...
Page 111: ...IF08CZ10 April 2019 89 DRIVE INSTALLATION DRAWINGS cont d Frame D2 drive lifting and assembly ...
Page 116: ...IF08CZ10 April 2019 94 DRIVE INSTALLATION DRAWINGS cont d Frame A4 drive lifting and assembly ...