120
Function assignment of external terminal and control
4.11.3 Condition selection of function validity by Second function selection (RT) signal
When the RT signal turns ON, the second function becomes valid.
For the RT signal, set "3" in any of
Pr. 178 to Pr. 182 (input terminal function selection)
to assign the function.
The second function has the following applications.
(a) Switching between normal use and emergency use
(b) Switching between heavy load and light load
(c) Changing of acceleration/deceleration time by broken line acceleration/deceleration
When the RT signal is ON, the following second functions are selected at the same time.
CAUTION
A PM motor is a magnet motor. High-voltage is generated at motor terminals while the motor is running.
Do not touch motor terminals and other parts until the motor stops to prevent an electric shock.
Parameters referred to
Pr. 178 to Pr. 182 (input terminal function selection)
You can select the second function using the RT signal.
Second function connection diagram
Second acceleration/deceleration time
Function
First Function
Parameter Number
Second Function
Parameter Number
Refer to
Page
Acceleration time
Pr. 7
Pr. 44
Deceleration time
Pr. 8
Pr. 44, Pr. 45
Stall prevention
Pr. 22
Pr. 48
NOTE
Changing the terminal assignment using
Pr. 178
to
Pr. 182
(input terminal function selection)
may affect the other
functions. Set parameters after confirming the function of each terminal.
Parameters referred to
Pr. 178 to Pr. 182 (input terminal function selection)
STF/STR
SD
Drive unit
Start
Second function
selection
RT
High speed
RH
Middle speed
RM
RT
Rotation speed
Acceleration time
is reflected
Time
RH
RM
Summary of Contents for FR-D720-0.2K-G
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