134
Seq Cntl 1 – 9 APP 02 – 10
Seq Count 1 – 9 APP 11 – 19
7 - PARAMETER DESCRIPTION
7.1.5 APP Group
These parameters each provide a 10-bit binary status display.
The following bits are used with each of these parameters:
Bit 0-2 = Speed Sel
Bit 3 = Accl Sel
Bit 4-6 = Event Length
Bit 7-8 = Dir Sel
Bit 9-10 = Output Sel
These parameters congure the time, number of pulses, or analog level of sequencer steps 1 through 9,
respectively. See page 137 “Description of Seq Count Function” for more information regarding this
group.
7.2 Using the S4 Program Sequencer
The S4 AC drive offers functionality that allows users to program up to nine independent operation
states of the drive. This functionality is called the “program sequencer” because it allows the drive to
sequence through the operation states programmed by the user. The S4 Program Sequencer can be used
in applications that would normally require external intelligence, such as a simple programmable logic
controller.
7.2.1 Enabling the S4 Program Sequencer
The S4 Program Sequencer can be enabled with parameter APP 01 (Seq Appl). This parameter congures
the sequencer. The time base may change depending on the timing loops used.
The following data values may be assigned to this parameter:
z NOTE: The program sequencer can be activated and controlled from either the keypad or the terminal
strip. It is not possible to control the sequencer through the serial link. See page 54 for information on
“control modes”.
Options Meaning
Disabled The Sequencer mode of the S4 is not active.
1 sec base
The Sequencer mode of the S4 is active, and all timing for the sequencer will be on a
1-second base.
.1 sec base
The Sequencer mode of the S4 is active, and all timing for the sequencer will be on a
0.1-second base.
.01 sec base
The Sequencer mode of the S4 is active, and all timing for the sequencer will be on a
0.01-second base.
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