Baldor MN770 User Manual

Page 28

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Section 1
General Information

Set-Up Information 5-7

MN770

Recommended Power Up/Down Sequence for Elevators Using Inverter Controls

The following is a recommended sequence for turning on and off the elevator drive and
external OEM control. Figure 5-5 shows this sequence.

Figure 5-5 Power Up/Down Sequence for Inverter Controls.

Close M

Open M

Enable

20mSec

Enable

20mSec

Motor Flux

“Drive ON”

Opto Output

Brake Release Signal

(from controller)

Motor Flux

“Drive ON”
Opto Output

Brake Release Signal
(from controller)

50mSec

Speed Command

50mSec

Speed Command

RUN TIME

TURN-ON

TURN-OFF

Brake Set Time

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