WEG CFW700, Programming And Troubleshooting Manual

Page: 218 / 223

19
Applications
19-28 | CFW700
It is necessary to set the parameter P0223 to 9 = SoftPLC (CW) or 10 = SoftPLC (CCW) together with P0224
to 4 = SoftPLC, or else, it is necessary to set P0226 to 9 = SoftPLC (CW) or 10 = SoftPLC (CCW) together with
P0227 to 4 = SoftPLC for the operation of the Forward/Reverse Run application. The following alarm message
will be displayed in case the Local FWD/REV selection is not set (P0223): “A760: Set Local FWD/REV to SoftPLC”
and the operation of the application will not be enabled if the Local Run/Stop selection (P0224) has been set to
SoftPLC. The same applies to the Remote FWD/REV (P0226), i.e., the following alarm message will be displayed:
“A762: Set Remote FWD/REV to SoftPLC” and the operation of the application will not be enabled if the Remote
Run/Stop selection (P0227) has been set to SoftPLC.
Definitions:
„
The Function 1 of the Application at parameters P0263 to P0270 represents the Forward command.
„
The Function 2 of the Application at parameters P0263 to P0270 represents the Reverse command.
The Forward 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 of the digital inputs is set, the following alarm message will be
displayed: “A750: Set a DI for Function 1 of the Application (Forward)” and the operation of the application
will not be enabled. It is defined that the forward command rotation will always be “clockwise”.
The Reverse 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 of the digital inputs is set, the following alarm message will
be displayed: “A752: Set a DI for Function 2 of the Application (Reverse)” and the operation of the application
will not be enabled. It is defined that the reverse command rotation will always be “counterclockwise”.
Both Forward and Reverse 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, A752, A760 and
A762 alarms, 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.
With the forward digital input active and the reverse digital input inactive, the forward and start commands are
performed. If the reverse digital input is active, nothing is changed in the operation of the inverter. When both
commands are inactive, the start command is removed and the motor will be decelerated to 0 rpm. However,
when the reverse digital input is active and the forward digital input is inactive, the reverse and start command
are performed. If the forward digital input is active, nothing is changed in the operation of the inverter. When both
commands are inactive, the start command is removed and the inverter decelerates to 0 rpm. In case both forward
and reverse digital inputs are active at the same time, the forward command will be generated.
19.6.2 Operation Setup
Setting up the Forward/Reverse Run Application
1. Selecting the application:
When the Forward/Reverse Run application is enabled, setting P1003 = 5, the default applicative is loaded in
the SoftPLC function, allowing its use in the CFW700.
2. Setting the digital input for the Forward command:
It is necessary to define one digital input for the Forward command of the Forward/Reverse Run application.
In order to do that, one of the DI parameters selection (P0263 to P0270) should be set to 20 = Function 1 of
the Application.
Recommendation: set the DI3 (P0265 = 20) to do the Forward.