Owner's manual

142 Rockwell Automation Publication D2-3518-3 - May 2013
Chapter 9
Figure 65 - Anlg in Sqr Root (321)
The drive scales the value read from the user-configurable analog input and
converts it to units usable for the application. You control the scaling by setting
parameters that associate a low and high point in the input range with a low and
high point in the target range.
Analog In 1 Hi sets the highest input value to the user-configurable analog input
1 scaling block. See AC Line I/O Board Description (Frame 3 Only)
on page 25
through Combined I/O Board Description (Frame 4 Only)
on page 29 for a
description of I/O hardware that is present on this drive and is controlled by the
inverter.
322 Analog In 1 Hi
Range: 4.000...20.000 mA [0.001 mA]
-/+10.000V [0.1V]
0.0...10.000V [0.1V]
Default: 20.000 mA
Access: 0 Path: Inputs & Outputs > Analog Inputs
See also: 91, 92, 320
Analog Input Scaling Example
Assume:
Speed Ref A Sel = Analog In 1
Minimum Freq = 0 Hz
Maximum Freq = 60 Hz
Analog In 1 Lo = 0.0V
Analog In 1 Hi = 10.0V
This is the default setting, where minimum input (0V) represents Minimum
Speed and maximum input (10V) represents Maximum Speed.
xxxxxxxxxxxxxx
0
0
0
011234567891112131415
1=Enable
0=Disable
x =Reserved
Bit #
Factory Default Bit Values
Analog ln 1
Analog ln 2
Nibble 1Nibble 2Nibble 3Nibble 4