9-6 MD60 AC Drive User Manual
Sets the source of the speed reference to the drive.
Important: 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 this parameter. Refer to section 6.6, Start and
Speed Reference Control, for details about how other
drive settings can override the setting of this
parameter.
0 = Drive Potentiometer (Default): Internal frequency command
from the potentiometer on the integral keypad.
1 = Internal Frequency: Internal frequency command from A069
(Internal Frequency).
2 = 0 to 10 V Input/Remote Potentiometer: External frequency
command from the 0 to 10 V analog input or remote potentiometer.
3 = 4 to 20 mA Input: External frequency command from the 4 to
20 mA analog input.
4 = Preset Frequency 0 to 3: External frequency command as
defined by A070-A073 (Preset Frequency x) when A051 and A052
(Digital Inx Select) are programmed as “Preset Frequencies,” and
the digital inputs are active.
5 = RS485 Port: External frequency command from the
communications port.
P038 Speed Reference
Range: 0 = Drive Potentiometer
1 = Internal Frequency
2 = 0 to 10 V Input / Remote Potentiometer
3 = 4 to 20 mA Input
4 = Preset Frequency 0 to 3
5 = RS485 Port
Default: 0 = Drive Potentiometer
See also: d001, d002, d012, P039, P040, A051, A052, A069,
A070-A073, A110-A113
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