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