Wired Input
From VersaVision Support
- OVERVIEW
- Inputs on an I/O Module or MIM can be used to connect to a machine through a wired connedtion.
- Two types of input circuits can be used in these modules, dry contact or DC signal.
- Each of the (4) contacts can be configured separately.
- The configuration is decided by the state of the associated switch (S1) and which of the 3 terminals the wiring is connected to.
- This page explains where the inputs are on the I/O and how to wire it according to the type of signal being used.
- CONTACT TYPES
- Dry Contact - Non-Voltage
- The dry contact configuration looks for a contact closure/open between DI#+ and V+.
- There should be no voltage, from the Machine, connected to this input.
- Power for the connection will be provided by the VersaCall I/O Module.
- DC Signal Contact - Voltage
- The DC signal configuration looks for a DC voltage input.
- This input is looking for a change in the voltage state from a high state of anything over 1.5 – 26 VDC to a low state of 0 - 0.9 VDC.
- CONTACT INFORMATION
- Downtime
- Use this contact to signal when the equipment is in a down state (not producing). The user decides what constitutes downtime.
- Depending on the equipment, the signal can come from different sources. PLC or Control Circuitry is the easiest method to pull a contact from.
- The contact can come from a non-Auto Run state. It is possible to connect multiple relays in parallel to achieve the desired result.
- Equipment can be considered down when there is a power loss.
- Equipment can be considered down when the E-stop has been activated.
- Equipment can be considered down when there is no power to a certain motor.
- Count
- Use this contact to signal when a part has been completed. Depending on the type of equipment, the contact can come from a variety of different sources.
- A sensor such as an electronic eye can indicate a count when the plane is broken.
- A signal such as a machine cycle can indicate when a count is completed.
- An external button press from an operator can indicate when a count is completed.
- Equipment Fault
- Use this contact to determine when equipment generates a fault.
- This contact would come from a PLC or other control circuitry equipment where faults have been programmed into the equipment's logic.
- Sensor Limit
- Use this contact to determine when a sensor reaches a critical limit.
- This requires a special type of sensor to trip a contact at a certain point.
- Common examples are the monitoring of temperature, pressure or some fluid level.
 |
|
|