Stroke Pulse; Pump Running; Pump Standby; Alarm Out - LMI Excel XR Series Installation & Operation Manual

Output Type
Digital
Analog

4.6.2.1 Stroke Pulse

Each time the pump completes a single stroke, a pulse is sent out on the assigned pin.
This can be used as an indicator or to trigger other actions. The pulse width is 100ms.

4.6.2.2 Pump Running

Similar to section 4.6.2.1 Stroke Pulse, the pump running output indicates the pump is
currently dosing. However, instead of a pulse the output remains active as long as the
diaphragm is moving.

4.6.2.3 Pump Standby

Standby is a state in which the Start / Stop button has been pressed to start the pump,
or a Remote Start / Stop signal has been received, and the pump status indicator is
green, but the pump is not running. Examples are waiting for an input trigger pulse in
batch mode or waiting for a timed event to begin in timed event mode. The pump
standby output is an indication of this state.

4.6.2.4 Alarm Out

This output becomes active when any alarm state occurs.

4.6.2.5 Internal/External Mode

The state of this output indicates whether the pump is operating in internal mode or
external mode. (See section 4.6.1.1 Remote Internal/External Mode for definitions.)
When configured as a NO output, open contacts indicate the pump is operating in
internal mode and closed contacts indicate the pump is operating in external mode.
Function
<Disable>
Stroke Pulse
Pump Running
Pump Standby
Alarm Out
Internal/External Mode
User Alarm Out
Pump Stopped
Timed Event
<Disable>
Flow
Mirror Input AI1
Use
De-activates input
Indicator pulse when pump strokes
Indicates steadily while pump is dosing
Pump Start/Stop toggled to Start, not dosing
Indicates any alarm is active
Indicates if pump control is internal or external
Indicates any user-selected alarm is active
Pump Start/Stop toggled to Stop
Pump running in response to Timed Event
De-activates input
4 – 20 mA output correlates to 0 – max capacity
Transmits AI1 input signal without change
17
OPERATION