3-Wire Start/Stop Command Application - WEG CFW700 Serie Manual Del Usuario

Keypad (HMI) and Basic Programming
P1018 – Multispeed Reference 8
Adjustable 0 to 18000 rpm
Range:
Properties: -
Access groups SPLC
via HMI:
Description:
Sets the speed reference 8 for the multispeed application.

4.2.4 3-Wire Start/Stop Command Application

The CFW700 has the 3-WIRE START/STOP application that allows the inverter to be set as
direct online start with emergency button and retention contact.
This way, the digital input (DIx) programmed to "Function 1 of the Application (Start)" will be able
to enable the inverter with a single pulse in case the DIx set to "Function 2 of the Application
(Stop)" is active.
The inverter disables the ramp when the digital input Stop is inactive. The picture below show
how it works.
DIx - Start
Open
24 V
DIx - Stop
Motor speed
Figure 4.7: Operation of the 3-Wire Start/Stop Application
The parameter related to this application is:
It is necessary to set the parameter P0224 or P0227 to 4=SoftPLC for the operation of the
3-Wire Start/Stop application.
Definitions:
The Function 1 of the Application at parameters P0263 to P0270 represents the Start
command;
The Function 2 of the Application at parameters P0263 to P0270 represents the Stop
command.
The Start command is done by one of the digital inputs (DI1 to DI8). It is necessary to set one
of the DI's parameters (P0263 to P0270) to 20 = Function 1 of the Application. If more than
one digital input is set for this function, the logic operation will consider only the command of
the high priority level digital input, where: DI1>DI2>DI3>DI4>DI5>DI6>DI7>DI8. If any digital
inputs is set, the following alarm message will be displayed: "A750: Set a DI for Function 1 of
the Application (Start)" and the operation of the application will not be enabled.
42 | CFW700
24 V
Open
- English -
Factory 1650 rpm
Setting:
Time
Time
Time