Allen-Bradley PowerFlex User Manual

2-4 Alarms
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.)
The input is configured to recognize a loss of signal and react accordingly to
the programming.
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.
Scale Block
P322
20mA
P091
60 Hz
P325
4mA
P092
0 HZ
324
327
[Analog In 1 Loss]
[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.
Default:
Options:
0
0
0
1
2
3
4
5
6
“Disabled”
“Disabled”
“Disabled”
“Fault”
“Hold Input”
“Set Input Lo”
“Set Input Hi”
“Goto Preset1”
“Hold OutFreq”
091
092
INPUTS & OUTPUTS
Digital Outputs
380
384
[Digital Out1 Sel]
[Digital Out2 Sel]
Selects the drive status that will energize
a (CRx) output relay.
(1)
Contacts shown on page 1-12 are in
drive powered state with condition not
present. For functions such as “Fault”
and “Alarm” the normal relay state is
energized and N.O. / N.C. contact wiring
may have to be reversed.
Default:
Options:
1
4
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
“Fault”
“Run”
“Fault”
(1)
“Alarm”
(1)
“Ready”
“Run”
“Forward Run”
“Reverse Run”
“Auto Restart”
“Powerup Run”
“At Speed”
“At Freq”
“At Current”
“At Torque”
“At Temp”
“At Bus Volts”
“At PI Error”
“DC Braking”
“Curr Limit”
“Economize”
“Motor Overld”
“Power Loss”
“Input 1 Link”
“Input 2 Link”
“Input 3 Link”
“Input 4 Link”
“Input 5 Link”
“Input 6 Link”
381
385
382
386
383
002
001
003
004
218
012
137
157
147
053
048
184

Allen-Bradley PowerFlex Specifications

General

Brand	Allen-Bradley
Model	PowerFlex
Category	DC Drives
Language	English