TECHTOP TD20 Series - Page 49

TD20 Series VFD Function Parameters
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Function
code
Name
Detailed instruction of parameters
Default
value
Modify
direction by the defined FWD and REV terminals
command.
FWD
REV
COM
K1
K2
Running
command
FWD REV
OFF OFF
OFF
OFF
ON
ON
ON ON
Stopping
Hold on
Forward
running
Reverse
running
1: 2-wire control 2; Separate the enable from the
direction. FWD defined by this mode is the enabling
ones. The direction depends on the state of the defined
REV.
FWD
REV
COM
K1
K2
Running
command
FWD REV
OFF OFF
OFF
OFF
ON
ON
ON ON
Stopping
Stopping
Forward
running
Reverse
running
2: 3-wire control 1; Sin is the enabling terminal on this
mode, and the running command is caused by FWD and
the direction is controlled by REV. Sin is natural closed.
COM
K
SB2
SB1
FWD
REV
SIn
The direction control is as below during operation:
Sln
REV
Previous
direction
Current
direction
ON
OFF→ON
Forward
Reverse
Reverse
Forward
ON
ON→OFF
Reverse
Forward
Forward
Reverse
ON→
OFF
ON
Decelerate to stop
OFF