Rockwell Automation Publication 193-UM015E-EN-P - October 2015 183
Operating Modes Chapter 5
Timing Diagram
Figure 90 - Non-reversing Starter (Local I/O) – Three-wire Control Timing Diagram
Non-reversing Starter (Local I/O) – Three-wire Control with Feedback
The E300 relay’s Operating Mode Non-Reversing Starter (Local I/O) – Three
Wire Control with Feedback (Parameter 195 = 39) uses an active state in Input 1
(normally open momentary push button) to energize Output Relay 0, which
controls the contactor coil, and a de-active state in Input 2 is used (normally
closed momentary push button) to de-energize Output Relay 0. Both Input 1 and
Input 2 are momentary values, so the non-reversing starter only energizes if Input
2 is active and Input 1 is momentarily active.
The auxiliary contact from the non-reversing starter’s contactor is wired into
Input 0. If a feedback signal is not received before the time identified in Feedback
Timeout (Parameter 213), then the E300 issues a trip or warning event.
The reset button of the E300 Operator Station is enabled for this operating
mode.
Rules
1. Available for Control Module firmware v5.000 and higher.
2. Three digital inputs must be available on the Control Module
3. Output Pt00 Assignment (Parameters 202) must be set to Control Relay.
4. Overload Trip must be enabled in TripEnableI (Parameter 183).
5. Feedback Timeout Trip in TripEnableC (Parameter 186) or Feedback
Time
out Warning in WarningEnableC (Parameter 192) must be enabled.
Start
Trip Event
Stop
Relay 0
Trip
Trip Reset