Allen-Bradley PowerFlex 70 Reference Manual page 17

Adjustable frequency ac drives
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By setting Speed Ref A Hi to 60 Hz and Speed ref A Lo to 0 Hz, the speed
reference is scaled to the application needs. Because of the Input scaling and link
to the speed reference, 4 mA represents minimum frequency (0 Hz.) and 20 mA
represents Maximum Frequency (60 Hz.)
Scale Block
P322
P091
20mA
60 Hz
P323
P092
4mA
0 HZ
The input is configured to recognize a loss of signal and react accordingly to the
programming.
324
[Analog In 1 Loss]
327
[Analog In 2 Loss]
Selects drive action when an analog signal loss is
detected. Signal loss is defined as an analog signal less
than 1V or 2mA. The signal loss event ends and normal
operation resumes when the input signal level is greater
than or equal to 1.5V or 3mA.
The loss action is chosen as Hold Input, meaning that the last received signal will
be maintained as the speed reference.
Finally, a Digital Output relay is configured to annunciate an alarm by turning on
a flashing yellow light mounted on the operator panel of the process control area.
380
[Digital Out1 Sel]
384
[Digital Out2 Sel]
388
[Digital Out3 Sel]
Vector
Selects the drive status that will energize a (CRx) output
relay.
(1)
Contacts shown in User Manual are in drive powered
state with condition present. Refer to "Fault" and
"Alarm" information.
(2)
Vector Control Option Only.
Rockwell Automation Publication PFLEX-RM001H-EN-P - June 2013
Default:
0
"Disabled"
0
"Disabled"
Options:
0
"Disabled"
1
"Fault"
2
"Hold Input"
3
"Set Input Lo"
4
"Set Input Hi"
5
"Goto Preset1"
6
"Hold OutFreq"
Default:
1
"Fault"
4
"Run"
4
"Run"
(1)
Options:
1
"Fault"
(1)
2
"Alarm"
3
"Ready"
4
"Run"
5
"Forward Run"
6
"Reverse Run"
7
"Auto Restart"
8
"Powerup Run"
9
"At Speed"
10
"At Freq"
11
"At Current"
12
"At Torque"
13
"At Temp"
14
"At Bus Volts"
15
"At PI Error"
16
"DC Braking"
17
"Curr Limit"
18
"Economize"
19
"Motor Overld"
20
"Power Loss"
21-
"Input 1-6 Link"
26
(2)
27
"PI Enable"
(2)
28
"PI Hold"
(2)
29
"PI Reset"
Alarms
091
092
381
385
382
386
383
002
001
003
004
218
012
137
157
147
053
048
184
17

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