GE LM10 Instruction Manual page 49

Motor protection system
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CHAPTER 4: FUNCTIONALITY
Motor RUN Commands
RUN1 Switch Input
RUN1 PDU Command
RUN1 command*
Motor STOP Commands
STOP Switch Input
STOP PDU Command
Stop command*
RUN2 Start Command
MODE change from
USER to CONFIG
Aux.Sense1 Switch Input
LM10 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL
AUX. Sense 1 fault detects a welded contactor when the contactor fails to open within 0.4
seconds after the RUN1 O/P signal goes off.
OR
Autorestart
DeviceNet
DeviceNet
OR
Relay Trip
De-assert RUN1
Switch Input **
Note:
* Devicenet Commands can be issued onl y if the Devicenet control switch input is asserted
** The Maintained switch s etting should be set to ON
S
Latch
R
Setting:
Open Contactor Logic
Aux.Sense 1 Time
Delay
Tpkp=0.1 to 25s ec
Welded Contacts Logic
Aux.Sense 1 Time
Delay
Treset= 0.4 sec
FIGURE 4–5: Motor RUN1 Start/Stop Logic
MOTOR START/STOP LOGIC
Relay O/P
MOTOR STATUS
RUN1 O/P
RUNNING#1
AND
MOTOR STATUS:
AUX.SENSE 1 FAULT
OR
AND
4–43

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