How to Setup an External Stop/Start for a VSD

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VSD External Stop/Start Setup

Setup External On/Off Switch (Single On/Off Selector)

Push Buttons Wiring

When using a normal Open/Close Switch, connect the Normally Open wire with DI1 and the Common wire with Common and then set:

  • b0-02 = 1 (terminal control)

Ideally also set the following (please see notes further on for further explanation):

  • Set b1-07 = 1 (Free Stop Mode – unless an Emergency Stop is also used, then keep = 0 for Decelerate to Stop)
  • Set b3-15 = 15.0 (DI1 On Delay time to delay the Start-up Process)

If the External Device only has a Normally Closed connection (not Normally Open) the VSD Start/Stop function will operate in the opposite way intended. In this case, also set:

  • b3-25 = 00001(Low Level Valid)

* Please Note: If the On/Off Switch is in the On state and a power failure occurs, the VSD will automatically start again when the power returns (for such a scenario its best to rather make use of a Free Stop Mode and also allow for a Start Delay when the power returns). It is however not ideal to Start/Stop a VSD by switching the power supply On/Off – which is typically the case with regular power failures (causes instantaneous discharge shock impact on capacitors which will reduce the service life of the capacitors) – for a better method of achieving this using an Intermediate Relay, please see the following FAQ Entry: How to Setup an Intermediate Relay to Power a VSD On/Off. A better Stop/Start method would be to use separate Stop and Start Push Buttons as described below:

Setup of External Push Buttons (On and Off Buttons)

Push Buttons Wiring

When using Push Buttons use a 3-Line Mode Stop/Start Setup:

  • b0-02 = 1 (Terminal Control)
  • b3-13 = 2 (3-Line Mode 1)
  • b3-00 = 1 (RUN Enabled) -> DI1 Terminal Connection
  • b3-02 = 3 (3-Line Control) -> DI3 Terminal Connection
  • 3rd Line Connected to COM

If using FWD/REV as well with above, set:

  • b3-13 = 3 (3-Line Mode 2)
  • b3-01 = 2 (FWD/REV) -> DI2 Terminal Connection

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