WEG CFW700 User Manual - page 49
44 | CFW700
Keypad (HMI) and Basic Programming
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P1018 – Multispeed Reference 8
Adjustable
Range:
0 to 18000 rpm
Factory
Setting:
1650 rpm
Properties:
-
Access Groups
via HMI:
SPLC
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.
Time
Time
24 V
Motor speed
24 V
Open
Open
DIx - Stop
DIx - Start
Time
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.