To ensure that the starter can stall automatically and the starter circuit not connected after the engine starts some cars adopt the compound relay circuit with safety driving protection. The standard connection of an electronic soft starter is 3 wire.
Carrier 19xr Xrv Fig 55 Typical Primary Reactor Starter
Benshaw soft starter wiring diagram. If a mains or isolation contactor is used it is best controlled by the soft starter line relay. Closed loop motor current control power. Benshaw bipc 300000 03 micro communications card rs485 rated 20 mhz for replacement in benshaw medium voltage starters. Profibus dp connector pinout pin profibus dp housing shield protective earth 1 not connected 2 not connected 3 b line rxtxd 4 rts request to send 5 gnd bus. It uses two contactors two auxiliary contact blocks an overload relay a mechanical interlock two normally open start pushbuttons a normally closed stop pushbutton and a power supply with a fuse. Mostly industrial motors are single phase or three phase induction motor depends upon supply fed to it.
You may get an electrical shock. Start up services benshaw technical field support personnel are available to do startup and conduct on site training on the starter operations and. Reduced voltage starting and soft stopping. A start voltage is applied with time irrespective of the current drawn or the speed of the motorfor each phase two scrs are connected back to back and the scrs are conducted initially at a delay of 180 degrees during the respective half wave cycles for which each scr conducts. Refer to the example wiring diagram in this section. In low voltage systems with an inlineisolation contactor.
Security starter relay controlled car starter wiring diagram. Do not connect or disconnect the wires. Full voltage reversing 3 phase motors. This diagram is for 3 phase reversing motor control with 24 vdc control voltage. Modbus rtu starter profibus dp network table 2. Soft starter main circuit wiring the soft starter is installed between the mains and cable to the motor.
Safety precautions electric shock prevention while power is on or soft starter is running do not open the front cover. There can be two types of control using soft starter. The security starter relay controlled car starter wiring diagram is as shown in the. An alternative connection is 6 wire or inside delta connection. The starter connector is used to connect the mxpb3 to a benshaw starter. The cost of this service is not included in the price of the benshaw soft starter and will be quoted specifically to each customers needs.
This soft starter contains high voltage which can cause electric shock resulting in personal injury or loss of life. Page 196 runtest isolation switches test power plugs and wiring diagrams are available from benshaw. Enclosed product has wiring diagrams of associated control devices found within the enclosure. Induction motor is the most frequently used motor for industrial as well as domestic applications. Be sure all ac power is removed from the soft starter before servicing. Soft starters are starting devices used for the acceleration deceleration and protection of the three phase electrical induction motors through the controlling applied voltage to 3 phase motor.
Gallery of Benshaw Soft Starter Wiring Diagram
