WEG CFW700 User Manual - page 51

46 | CFW700

Keypad (HMI) and Basic Programming 

E

ng

lis

h

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 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 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 forward 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.

The parameter related to this application is: