X5 AC Drive User’s Manual
Chapter 7: X5 Parameters
DPD00089A
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113 -
© 2009 Vacon Incorporated All Rights Reserved
Terminal Control of the X5 Program Sequencer
When activating or controlling the X5 Program Sequencer from terminals, continuous and one-shot
operation is determined by whether the drive is wired for 2-wire or 3-wire control. If the terminal is
set up for 2-wire control, the sequencer operates in continuous mode (R/J terminal inactive). This
will run the sequencer until the Forward command is removed. If the terminal is set up for 3-wire
control, the sequencer runs one cycle when the FWD terminal is activated.
Note that the REV terminal has very limited function in sequencer mode. It can be used to determine
direction only when TERM/SIO is the control selection option.
X5 Sequencer Dwell Functionality
The X5 sequencer can dwell, or pause, in a state and disregard any command to advance to the next
state. This can be done in two different ways, and both methods can be used at the same time:
• If the sequencer is actively running and you press the
Enter
key on the Operate screen of the keypad, the
sequencer will dwell in the current state (it will never advance to the next state). While the sequencer is
dwelling, a warning of “Seq Dwell” will flash on the Operate screen. To leave the dwell state, press the
Enter
key again from the Operate screen.
• The sequencer Dwell mode can also be entered by programming a digital input to “Seq Dwell.” The
sequencer will then dwell in the current state, for as long as the digital input is active.
X5 Sequencer Advance Functionality
You can also allow the sequencer to advance to the next state without satisfying the conditions
programmed to advance. To do this, program a digital input to “Seq Advance.” When a digital input
program to this option changes from inactive to active, a running sequencer will advance one state.
This feature is useful when debugging a sequence with long time intervals.
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