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04. Motor starters control
M10x offers a wide range of pre-configured
motor starter control logic to support various
control applications.
Starter type
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
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—
NR_DOL: non reversing direct online
REV_DOL: reversing direct online
NR_DOL/RCU: non reversing direct online with remote control unit
REV_DOL/RCU: reversing direct online with remote control unit
Actuator: actuator with limit switch input
NR_S/D: non reversing star-delta
NR_2N: two-speed driver for non reversing starter with separate winding
NR_2N Dahlander: two-speed driver with Dahlander connection
Autotransformer: starter with autotransformer starting method
NR_softstarter: non reversing starter using softstarter
REV_softstarter: reversing starter using softstarter
Contactor feeder: a general load controlled by a contactor
Contactor feeder/RCU: a general load controlled by a contactor with remote control unit
Feeder: a customized logic for loads controlled by circuit breaker directly
The pre-configured starter control follows the
same control sequence, i.e. from receiving the
command, executing control via output relays
CCA, CCB and CCC, monitoring motor status
through current feedback or contactor status
feedback and confirm the completion or issue
the alarm in case of in-completion of the con-
trol sequence.
The following Fig 14 explains the difference
between NR_DOL and NR_DOL/RCU concern-
ing the operation of CCA and CCC relays after
receiving the commands. The relation be-
tween feedback and motor status is also ex-
plained.
Contactor feedback and current feed-
back are both used for verification of the
motor status. Any unexpected feedback
results in alarm or fault.
Contactor feedback may be disabled in
NR_DOL and contactor feeder starter
control.
Current feedback is a built in feature ex-
cept for contactor feeder and contactor
feeder_RCU starters. Current feedback
function can not be disabled in other
starters.
Feedback time is adjustable.
Contactor feedback and
current feedback
22 M O T O R CO N T R O L A N D P R OT E C TI O N U N I T M 10 X US ER G U I D E