Application – Rockwell Automation 20B PowerFlex 70, PowerFlex 700 Reference Manual User Manual
Page 16
Alarms
16
Rockwell Automation Publication PFLEX-RM001H-EN-P - June 2013
The configuration bits act as a mask to block or pass through the alarm condition
to the active condition. An active alarm will be indicated on the LCD HIM and
will cause the drive alarm status bit to go high (“1”) in the Drive Status word (Bit
6, parameter 209). This bit can then be linked to a digital output for external
annunciation. As default, all configuration bits are high (“1”). Note that setting a
configuration bit to “0” to “mask” an alarm does not affect the status bit in the
Drive Alarm parameter, only its ability to annunciate the condition.
Application
A process is being controlled by a PowerFlex drive. The speed reference to the
drive is a 4-20 mA analog signal from a sensor wired to Analog Input 1.
The input is configured for mA by setting the corresponding bit in [Anlg In
Config] to “1”
The input is scaled for 4-20 mA by setting [Analog In 1 Lo] to “4” mA and
[Analog In 1 Hi] to “20” mA.
The signal is designated as the active speed reference by setting [Speed Ref A Sel]
to its factory default value of “1”
320 [Anlg In Config]
Selects the mode for the analog inputs.
322
325
323
326
Analog In Config
0
1
Speed Re
fe
re
nces
090 [Speed Ref A Sel]
Selects the source of the speed reference to the drive
unless [Speed Ref B Sel] or [Preset Speed 1-7] is
selected.
(1)
See User Manual for DPI port locations.
Default:
Options:
2
1
2
3-6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
“Analog In 2”
“Analog In 1”
“Analog In 2”
“Reserved”
“Pulse In”
“Encoder”
“MOP Level”
“Reserved”
“Preset Spd1”
“Preset Spd2”
“Preset Spd3”
“Preset Spd4”
“Preset Spd5”
“Preset Spd6”
“Preset Spd7”
“DPI Port 1”
(1)
“DPI Port 2”
(1)
“DPI Port 3”
(1)
“DPI Port 4”
(1)
“DPI Port 5”
(1)
002
091
thru
093
101
thru
107
117
thru
120
192
thru
194
213
272
273
320
361
thru
366
0
x
x
0
x
x
x
x
x
x
x
x
x
x
x
x
10
0
1
2
3
4
5
6
7
8
9
11
12
13
14
15
1
=Current
0
=Voltage
x =Reserved
Bit #
Factory Default Bit Values
An1 0=V 1=mA
An2 0=V 1=mA