User`s guide

I/ O E VENT TRIGGE RS
The PHD Ultra pump permits easy connection to external I/O devices via a variety of interfaces, including a
built-in 15-pin D-sub connector. The PHD Ultra software incorporates simple commands for incorporating
I/O controls into your pump Methods. Integrated commands for control of an external valve, multi-pump
synchronization, and general trigger signals are integrated in the software. The following procedure
describes the use of the Advanced Options I/O commands. Following the procedure is a description of the
s
election menu options for each of the I/O command types. Details for the electrical connection controls
and pin-out description for the 15-pin User I/O Connector are provided in Appendix H of this manual.
The PHD Ultra manages trigger events through specific pins on the I/O Connector port on the back of the
pump. The following details define pin logic:
• Triggers are communicated via Pin 4 or Pin 5.
• Valve control signals are communicated via Pin 8.
• Pump synchronization commands are communicated via Pin 6.
• Event signals are communicated via Pin 2.
I/ O T RIGG ER (OUT )
The I/O Trigger (out) command is used to send a signal to an external device when the Step in the Method
is reached.
Figure 70: I/O Trigger (out) Advanced Options menu.
The following options are available when setting an I/O Trigger (out) 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.
• Valve: Used to trigger an external flow control valve via Pin 8. When selected, you must also specify
the trigger action: Off or Valve Actuated.
- (Valve) Off: Outputs a logic low to set valve to the off position.
- Valve Actuated: Outputs a logic high to set valve to the actuated (open) position.
• 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 an Infuse activity or a Refill
(Withdraw) activity.
- Start Infuse: Defines the rising edge signal to trigger an infusion action.
- Start Refill: Defines the falling edge signal to trigger a refill (withdraw) action.
Harvard Apparatus PHD ULTRA
™
Syringe Pump Series User's Manual
Publication 5419-002-Rev-A
73
U
sing The PHD ULTRA™