Watson-Marlow 520DuN IP66/NEMA 4X User Manual Never apply mains power to the terminals within the 520Nmodule. Apply the correct signals to the terminals shown below.
If you invert the operation of the remote run / stop switch to operate as open=stop, you must connect the +5V terminal to the i/p terminal on the Run/stop input connector (J4), to be able to start the pump from the keypad.
This operation can be carried out with the 520Nmodule in place, or after it has been removed, as shown here for clarity. Ensure that the pump is isolated from the mains power. Remove the six screws from the interface card cover underneath the pump. Lift off the interface card cover.
Note: Ensure that the 520Nmodule is properly fitted at all times using all six screws. Without the module and the screws, the screw holes may corrode and IP66 (NEMA4X) protection will be compromised.
Supervisory Control and Data Acquisition (SCADA) is a system that combines both hardware and software elements to allow for the monitoring and control of industrial processes. This system is commonly used in various industries such as manufacturing, energy, water treatment, and transportation.
Refer to the hardware manual of your corresponding I/O module for wiring and configuration details of the I/O module digital output channels. Information on the controller board digital output is covered in this rest of this chapter.
Note: the module is attached for transit, but must be removed to allow wiring up, voltage selection and fuse inspection and then re-affixed before the pump is operated.