Rockwell Automation 9VT201-007HTNNN, User Manual, Page: 117 / 224

Programming and Parameters 3-55
Publication 9VT-UM001D-EN-P
INPUTS & OUTPUTS
Ana
log
Inpu
ts
322 [Analog In 1 Hi]
Sets the highest input value to the analog
input 1 scaling block.
The drive scales the value read from the
analog input and converts it to units
usable for the application. The user
controls the scaling by setting parameters
that associate the low and high point in
the input range with a low and high point
in the target range
Default:
Min/Max:
Units:
20.000 mA
4.000/20.000 mA,
0.000/10.000V
(1)
,
–/+10.000V
(2)
0.001 mA,
0.001 Volt
(1)
Frame B, C, D, & E
(2)
Frame 2, 3, 4, 5, & 6
091
092
Note: If bit 0 of 320 [Anlg In Config] is set to 0 “Voltage”, you must use this
parameter to rescale voltage.
323 [Analog In 1 Lo]
Sets the lowest input value to the analog
input 1 scaling block.
Note: If bit 0 of 320 [Anlg In Config] is set
to 0 “Voltage”, you must use this
parameter to rescale voltage.
Default:
Min/Max:
Units:
4.000 mA
4.000/20.000 mA,
0.000/10.000V
(1)
,
–/+10.000V
(2)
0.001 mA,
0.001 Volt
(1)
Frame B, C, D, & E
(2)
Frame 2, 3, 4, 5, & 6
091
092
324 [Analog In 1 Loss]
Selects drive action when an analog
signal loss is detected.
1.6V/3.2 mA = Signal Loss
1.9V/3.8 mA = End Signal Loss
Option 1 “Fault” stops the drive on signal
loss. All other options permit the input
signal to return to a usable level while the
drive continues to run.
Default:
Options:
0
0
1
2
3
4
5
6
“Disabled”
“Disabled”
“Fault”
“Hold Input”
“Set Input Lo”
“Set Input Hi”
“Goto Preset1”
“Hold OutFreq”
091
092
Important: Signal loss detection does not occur in bipolar voltage mode.
F
ile
Gr
oup
No
.
Parameter Name and Description
See page 3-2 for symbol descriptions
Values
Re
lated
Analog Input Scaling Example
090 [Speed Ref A Sel] = Analog In 1
091 [Speed Ref A Hi] = 60.0 Hz
092 [Speed Ref A Lo] = 10.0 Hz
322 [Analog In 1 Hi] = 10.0 V
323 [Analog In 1 Lo] = 0.0 V
This is the default setting where minimum
input (0.0 V) represents low reference and
maximum input 10.0 V represents high
reference
091 [ S peed R ef A Hi]
60 Hz
092 [ S peed R ef A Lo]
10 Hz
323 [ A nalog In 1 Lo]
0 V
322 [ A nalog In 1 Hi]
10V
S
peed
R
eference
!
ATTENTION: Setting parameter 324 to a value greater than 1
allows the input signal to return to a usable level while the drive is
running. If a lost analog signal is restored while the drive is running,
the drive will ramp to the restored reference level at the rate
specified in 140 [Accel Time 1], 141 [Accel Time 2], 142 [Decel
Time 1], and 143 [Decel Time 2]. Be aware that an abrupt speed
change may occur depending upon the new reference level and the
rate specified in these parameters. Failure to observe this
precaution could result in bodily injury.