Baldor BC142 Installation And Operation Manual

Also see for BC141: Installation & operating manual

Baldor BC142 Installation And Operation Manual Manual pdf 17 page image

6.7 Enable Circuit Connection – The control can be started and stopped with an Enable Circuit (close to run),as described below.WARNING! The Enable Circuit is never to be used as a Safety Disconnect since it is notfail-safe. Use only the AC line for this purpose.6.7.1 Enable Switch or Contact Wired to the Enable Connector – Using the wired mating connector thatis supplied with the control, wire the switch or contact to the Enable connector (CONN1), as shown inFigure 5. When the switch or contact is closed, the motor will accelerate to the Main SpeedPotentiometer setting. When the switch or contact is opened, the motor will decelerate to stop. Anopen collector (PNP) can be wired in lieu of a switch or contact.Notes: 1. To usethe Enable Circuit,remove the jumperthat is factoryinstalled onCONN1. 2. Thedeceleration timecan only be madelonger than thenormal coastingtime of the load.6.7.2 Enable Switch or Contact Wired to the Main Speed Potentiometer – Wire the switch or contact inseries with the Main Speed Potentiometer high side and Terminal “P3” on the control, as shown inFigure 6, on page 17. Be sure the jumper is installed on the Enable Connector (CONN1). When theswitch or contact is closed, the motor will accelerate to the Main Speed Potentiometer setting. Whenthe switch or contact is opened, the motor will decelerate to the MIN Trimpot setting (factory set to 016!(On to Run)(Off to Stop)Open CollectorCONN1MAXEN(Open to Stop)(Close to Run)or ContactEnable Switchthe Mating ConnectorCONN1MAXENRemove this jumper to installCONN1MAXENFIGURE 5 – ENABLE SWITCH OR CONTACT WIRED TO THE ENABLE CONNECTOR