3-Wire Start/Stop Command Application - WEG CFW700 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
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.
44 | CFW700
24 V
Open
Factory 1650 rpm
Setting:
Time
Time
Time