Edwards ELD500 Series

D135-10-880C - Operation
Page 47
The following digital out signals are selectable.
Trigger 1; Trigger 2 and 3 analog Trigger 1
Is open in case Trigger Level 1 is exceeded or the machine is not in condition of measuring.
Define PLC inputs
Main menu > Settings > Interfaces > Define PLC inputs
These inputs can be used to control the ELD500 with a programmable logic control (PLC).
Zero active: Is closed in case Zero function is running.
Ready: Is closed in case machine is in measurement mode (Emission on, no
error).
CAL active Closed when machine is in calibrating routine.
CAL Request Is opened in case of calibration request. During external calibration a
open output indicates that the external calibrated leak has to be
closed.
Fail Open when a error is shown.
Warning Open when a warning is shown.
Gas ballast Closed when gas ballast is active.
Open Open all time.
Close Closed all time.
Recorder Strobe Closed in case recorder output is invalid. Only used when record
output is set on (leak rate).
Pump down Open when machine is evacuating the test object.
Standby Open when machine is in Standby or Vent mode.
Vented Open when machine is in Vent mode.
Emission on Open when emission is on.
CAUTION:
Maximum input voltage 35 V.