KD Scientific Allegro Peristaltic Pump Series - Manual (Page 50)

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KD Scientific Allegro Peristaltic Pump System User’s Manual
Publication 5613-004-REV-A
Operating the KDS Allegro Peristaltic Pump System
✐
NOTE: When using triggers, the first step
in your program should define the trigger
starting level (High or Low). You may then
use the trigger command to change the
level as desired for your Program.
I/O (OUT) Trigger
The I/O (OUT) Trigger command is used to send a signal
to an external device when the Step in the Program is
reached.
The following options are available when setting an I/O
(OUT) Trigger command:
• Trigger 1: Specifies output via the Trigger 1
(Pin 4) port. When selected, you must also specify
whether the signal to be sent is High Signal or
Low Signal.
– High Signal: Sets the output signal to logic high.
– Low Signal: Sets the output signal to logic low.
• Trigger 2: Specifies output via the Trigger 2
(Pin 5) port. When selected, you must also specify
whether the signal to be sent is High Signal or
Low Signal.
– High Signal: Sets the output signal to logic high.
– Low Signal: Sets the output signal to logic low.
• Synchronize: Select this to send a signal via Pin 6
to a connected pump to trigger activity. When
selected, you must define whether the desired
action is to start a forward or reverse activity.
– Forward (CW): Defines the rising edge
signal to trigger a forward action.
– Reverse (CCW): Defines the falling edge
signal to trigger a reverse action.
I/O (OUT) Trigger Advanced Options menu
• Valve: The pump automatically sends signals (via
pin 8) to activate/de-activate when the pump
changes direction. Use this feature to break that
feature and gain control of valve operation.
– Valve On: Activates the valve.
– Valve Off: De-Activates the valve.
– Valve Auto: Returns pump to automatic
valve control mode.
TO INSERT AN I/O (OUT) TRIGGER COMMAND:
1. From the Program Main screen, choose Step
Definition to enter the Step Definition screen.
2. Highlight (select once) the Program Step that you
want the I/O (OUT) Trigger to follow.
3. Choose the button to access the
Program Steps Menu screen.
4. Choose Advanced Options to enter the Select
Advanced Options screen.
5. Choose the I/O (OUT) Trigger button to enter the
Trigger Step Definition Screen.
6. Set your Trigger settings by choosing the
appropriate option from the following
sub-procedures:
a. To send a Trigger signal to an external device via
Pin 4, select the Trigger 1 button. To send a Trigger
signal via Pin 5, select the Trigger 2 button (selection
will highlight in blue). Then select whether the signal
will be High or Low by selecting the appropriate
button (selection will highlight in white).
b. To send a trigger signal to an external valve, select
Valve. Then select whether the trigger will actuate
(on button) or close (off button) by selecting the
appropriate button. This overrides the default
‘Valve Auto’ which means the valve is controlled by
direction change. The valve will default back to
‘Auto’ after leaving the program Run screen.
c. To send a synchronization signal to a connected
pump, select Synchronize. Then select whether you
want to start an infusion action (Start Infuse button)
or a withdraw action (Start Withdraw button) by
selecting the appropriate button.
7. Choose the Accept button to save your changes
and return to the Step Definition screen.
‘INS STEP’