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107
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vacon
vacon 500x parameters
7
When the sequencer is running, a warning, “Seq Running,” will flash on the screen to indicate that the drive
control state may change without user input. For example:
When the sequencer is dwelling (pausing) in a state, a warning, “Seq Dwell,” will flash on the screen to
indicate that the sequencer will not advance. For example:
7.4.7 Sample Sequencer Program
A machine is required to run in the forward direction at 50 Hz for one hour, then quickly decelerate to a
stop. While stopped, a digital output must be enabled to sound an alarm to an operator. After two minutes,
the machine must accelerate in the reverse direction to 5 Hz until a limit switch is activated., causing the
drive to decelerate to a stop. The following three sequential states can be programmed using only the drive:
First, since two of the sequential states are time-based, the proper setting of the “Seq Appl” parameter
must be determined. Since there is not time required that has resolution needed of less than one second,
the “1 sec Base” option is the easiest to use. If greater resolution is needed (for example, if a state needed
to last for 2.5 seconds), another option should be chosen.
As the sequence needs a digital input and a digital output, two non-sequencer parameters must be used.
Set parameter “DI1 Configure” to “Seq1” and parameter “DO1 Configure” to “SeqOut-01.”
Since control of the sequencer is only needed from the keypad, the configuration of the “Input Mode”
parameter should be “Local Only.”
Required parameter modifications for this program are provided in Table 10, with explanations.
State 1
State 2
State 3
Direction Selection
Forward
Stop
Reverse
Speed Selection
50 Hz
Zero speed
5 Hz
Ramp Selection
Primary
Alternate
Primary
Output Configuration
SeqOut-00
SeqOut-01
SeqOut-10
State Duration
1 hour
2 minutes
Until DI active
Table 9: Sample Sequencer Program Requirements
Parameter
Value
Explanation
Seq Appl
“1 sec Base”
Sets 1 second time increments
DI1 Configure
“Seq1”
Allows DI1 to end state 3
DO1 Configure
“SeqOut-01”
Allows DO1 to be active in state 2
Preset Speed 1
5 Hz
Speed for state 3
Preset Speed 6
50 Hz
Speed for state 1
Seq Cntl1*
00010000110
No outputs/FWD/Timed/Primary Ramp/Preset
Speed 6
Table 10: Required Parameter Settings for Sample Sequencer Program
Q 1 :
S t o p p e
S
d
0 . 0 H z
+ 0 %
Q 1 : S e q
R u n n i n
S
g
0 . 0 H z
+ 0 %
Q 1 :
S t o p p e
S
d
0 . 0 H z
+ 0 %
Q 1 :
S e q
D w e l
S
l
0 . 0 H z
+ 0 %
Summary of Contents for 500X
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