Mitsubishi Electric FR-F700PJ Series, Instruction Manual

Page: 142 / 356

137
Function assignment of external terminal and control
4
P
ARAM
ETE
R
S
4.11.3 Condition selection of function validity by second function selection signal (RT)

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
(d) Switching of characteristic between the main motor and sub motor
When the RT signal is ON, the following functions are selected at the same time.
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
Applied control mode
(  : Valid,

: Invalid)
Refer to
Page
Torque boost Pr. 0 Pr. 46

 
92
Base frequency Pr. 3 Pr. 47  

103
Acceleration time Pr. 7 Pr. 44    113
Deceleration time Pr. 8 Pr. 44, Pr. 45
  
113
Electronic thermal O/L
relay
Pr. 9 Pr. 51  

( Pr. 9 is
enabled.)
119
Stall prevention Pr. 22 Pr. 48
  
96
Applied motor Pr. 71 Pr. 450  

( Pr. 71 is
enabled.)
123
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) Refer to page 134
STF/STR
SD
Inverter
Start
Second function
selection
RT
High speed RH
Middle speed
RM
RT
Output frequency
Acceleration time
is applied
Time
RH
RM
V/F V/F V/F
GP
MFVC
GP
MFVC
GP
MFVC IPM IPM IPM