Watson-Marlow 520DuN IP66/NEMA 4X User Manual
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18.10 Outputs
The 520DuN pump offers four relay status outputs. See 12
Switching the pump on
for the first time
for initial startup defaults. Each of five parameters can be config-
ured to any output, or more than one output.
The parameters are:
Run / stop
Provides a status output to indicate whether the pumphead is in a running or
stopped condition. When running at 0rpm, the run / stop output indicates run-
ning.
Direction
Provides a status output to indicate which direction the pump is set to run in.
Auto / man
Provides a status output to indicate whether the pump is in analogue control
mode or manual control mode.
General alarm
Provides an alarm output when any system error condition occurs except: leak
detected; analogue signal out of range; analogue over-signal; analogue no sig-
nal.
Leak detected
When used with a leak detector, this output provides an alarm when the pump
has been automatically switched off following tube failure.
Outputs 1-4 are available as single-pole change-over relay contacts: Relay 1, 2, 3
and 4. Connect to the normally open or normally closed contacts of the relay as
required and configure the pump’s software accordingly. See below in this section.
Note
: The maximum rating on the relay contacts of this pump is 30VDC; maximum
load 30W.
