5 start and speed reference control – FanAm MD60 AC Drive User Manual

Page 40

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6-8

MD60 AC Drive User Manual

6.5

Start and Speed Reference Control

The drive speed command can be obtained from a number of
different sources. The source is normally determined by P038
(Speed Reference). However, when A051 or A052 (Digital Inx
Select) is set to option 2, 4, 5, or 6, and the digital input is active,
A051 or A052 will override the speed reference commanded by
P038 (Speed Reference). See figure 6.3 for the override priority.

Figure 6.3 – Override Priority for the Speed Reference Command

Jog input

enabled and active:

A051 or A052 = 2

Yes

Drive will start and run at jog speed.

Direction comes from

Terminal 03 Dir/Run REV

Local/Remote input

enabled and active:

A051 or A052 = 5

Yes

Start, speed and direction commands

come from integral keypad.

Comm Select input
enabled and active:

A051 or A052 = 6

Yes

Start, speed and direction commands

come from RS485 port.

P038 (Speed Reference)

= 4 or 5

Yes

Run as specified by

P038 (Speed Reference).

Start and direction commands come

from P036 (Start Source).

A051 / A052

Preset inputs active

Yes

Run as specified by

A071-A073 (Preset Freq 1-3).

Start and direction commands come

from P036 (Start Source).

No

Run as specified by

P038 (Speed Reference).

Start and direction commands come

from P036 (Start Source).

No

No

No

No

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