Name Pin Description
CCLI X4:6 Contactor control voltage input
CCA X4:7 Contactor control A
CCB X4:8 Contactor control B
CCC X4:9 Contactor control C
DI5 (Loc/R) X1:6 Local/remote control switch input
DI6 (F_Ca) X1:7 Contactor control A feedback
DI7 (F_Cb) X1:8 Contactor control B feedback
DI8 (F_Cc) X1:9 Contactor control C feedback
DI7 (F_Cb) X1:8 Contactor control B feedback
DI5 (Loc/R) X1:6 Local/remote control switch input
—
—
22 Control circuit for NR-S/D starter
NR-S/D starter (M102 only)
Motor start current is reduced in star connection
to 1/3 of the current in delta connection, with
lower torque during the same time.
Star-to-delta starting sequence is based on
the presented control logic (Fig22).The
changeover condition is time.
Operating sequence in NR-S/D
Motor is stopped → Start1 → CCB&CCC close →
changeover time → CCB opens & CCA closes
Motor is running → Stop → CCA&CCB&CCC
open
* The assigned DI and PIN code may change in actual design
Take note of changeover time and mo-
tor startup time setting
Changeover time < Motor startup time
30 M OT O R CO N T R O L A N D P R O T E C T I O N U N I T M 1 0X U S E R G U I D E
To Next Page
Loading...
