Forward/Reverse Run Application - WEG CFW700 Manual Del Usuario

The Stop command is also done by one of digital inputs (DI1 to DI8). However, it is necessary
to set one the DI's parameters (P0263 to P0270) to 21 = Function 2 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: "A752: Set a DI for Function 2 of
the Application (Stop)" and the operation of the application will not be enabled.
Both Start and Stop inputs are active when 24 V is applied and inactive when 0 V is applied.
With the inverter enabled in local or remote mode, with no fault, without undervoltage, no A750
and A752 alarm, the "General Enable" command is performed in the inverter. In case some
digital input is set to "General Enable" function, the inverter will effectively be enabled when the
two command sources are active.
The parameter related to this application is:
P1010 – Version of the 3-Wire Start/Stop Application
Adjustable 0.00 to 10.00
Range:
Properties:
ro
Access Groups
SPLC
via HMI:
Description:
Read only parameter that presents the software version of the 3-Wire Start/Stop application
developed for the SoftPLC function of the CFW700.

4.2.5 Forward/Reverse Run Application

The CFW700 has the Forward/Reverse Run application that allows the combination of two
inverter commands (Forward/Reverse and Start/Stop) in a single digital input.
This way, the digital input (DIx) programmed to "Function 1 of the Application (Forward)" combines
the forward rotation with the start/stop command and the input (DIx) programmed to "Function
2 of the Application (Reverse)" combines the reverse rotation with the start/stop command. The
picture below show how it works.
Forward
Reverse
Motor
speed
Figure 4.8: Operation of the Forward/Reverse Run application
24 V
DIx -
Open
DIx -
Open
Forward
Keypad (HMI) and Basic Programming
Factory
Setting:
Time
24 V
Time
Time
Reverse
-
CFW700 | 45