10.5.3. ERSC Functions Affected by Stop Command

Regardless of mode (ZPA, PLC I/O, ConveyLogix program); a Stop Command completely inhibits any rotation of a motor connected to either Motor Port.

How the module’s digital outputs respond to a Stop Command is dependent upon what mode the module is in and its settings in EasyRoll. When placing a module into PLC I/O Mode from the Connections tab from the Advanced Dialog; there is a drop down box for the user to select how to respond when there is a communications loss with the PLC. The choices are to turn off the outputs of leave them in their last state. This setting also affects how the outputs respond during a Stop Command

EasyRoll Connections Tab with PLC Disconnect Option

Control Port Outputs

The state of the Control Port digital outputs during a Stop Command depends upon the following:

Whether the module is in ZPA Mode or PLC I/O Mode
Whether or not a Stop Button was assigned during ConveyStop Stop Group configuration
The selection of the * On PLC Disconnected* option from the Connections Tab in EasyRoll

The following chart indicates the state of the corresponding Left or Right Control Port digital output while a Stop Command is Active based upon these factors:

Motor Ports in Digital I/O Mode

For the Left and Right Motor Ports in Digital Mode, the state of these outputs is determined by the On PLC Disconnected setting on the Connections Tab in EasyRoll

!WARNING !!! Motor Port in Digital Mode output state upon STOP Command is determined by On PLC Disconnected setting in EasyRoll and that these outputs could remain energized during a STOP Command. In any case where output state is determined by EasyRoll setting; it is up to the Integrator to insure that control system programming understands that a STOP Command has no effect on these outputs. It is possible that based upon this setting, any given digital output could remain energized even though there is STOP Command active.