Condition Selection Of Function Validity By The Second Function Selection Signal (Rt) And Third Function Selection Signal (X9) (Rt Signal, X9 Signal, Pr. 155) - Mitsubishi Electric FR-A720-0.4K Instruction Manual

4.15.3 Condition selection of function validity by the second function selection signal (RT) and
third function selection signal (X9) (RT signal, X9 signal, Pr. 155)
You can select the second (third) function using the RT(X9) signal.
You can also set the condition (reflection conditon) where the second function and third function become valid.
Parameter
Name
Number
RT signal function validity
155
condition selection
⋅ When the RT signal turns on, the second function becomes valid.
⋅ When the X9 signal turns on, the third function becomes valid.
For the X9 signal, set "9" in any of Pr. 178 to Pr. 189 (input terminal function selection) to assign the function.
⋅ The second (third) 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 main motor and sub motor
Second function
connection diagram
Inverter
Start STF(STR)
Second
function
RT
selection
RH
High speed
RM
Middle speed
SD
⋅ Functions that can be set as second and third functions
Function
Torque boost
Base frequency
Acceleration time
Deceleration time
Electronic thermal relay
function
Stall prevention
Applied motor
Motor constant
Pr. 90 to Pr. 94, Pr. 96, Pr. 859
Online auto tuning
selection
Motor control method
Speed control gain
Analog input filter
Speed detection filter
Torque control gain
Torque detection filter
REMARKS
⋅ The RT signal is assigned to the RT terminal in the initial setting. By setting "3" in any of Pr. 178 to Pr. 189 (input terminal function
selection), the RT signal can be assigned to the other terminal.
CAUTION
⋅ When the RT (X9) signal is on, the other functions such as the second (third) are also selected.
⋅ Changing the terminal assignment using Pr. 178 to Pr. 189 (input terminal function selection) may affect the other functions. Please
make setting after confirming the function of each terminal.
♦ Parameters referred to ♦
Pr. 178 to Pr.189 (input terminal function selection)
Initial Value Setting Range
0
Second acceleration/deceleration time example
Setting value "0" (initial value)
RT
RH
RM
First Function
Parameter Number
Pr. 0
Pr. 3
Pr. 7
Pr. 8
Pr. 9
Pr. 22
Pr. 71
Pr. 80 to Pr. 84, Pr. 89,
Pr. 458 to Pr. 462, Pr. 463, Pr. 860
Pr. 95
Pr. 800
Pr. 820, Pr. 821
Pr. 822, Pr. 826
Pr. 823
Pr. 824, Pr. 825
Pr. 827
Refer to page 221
Function assignment of external terminal and control
Second (third) function is immediately made valid with on
0
of the RT(X9) signal.
Second (third) function is valid only during the RT (X9)
10 signal is on and constant speed operation. (invalid during
acceleration/deceleration)
Acceleration
time is reflected
Time
Second Function
Parameter Number
Pr. 46
Pr. 47
Pr. 44
Pr. 44, Pr. 45
Pr. 51
Pr. 48, Pr. 49
Pr. 450
Pr. 453 to Pr. 457, Pr. 569,
Pr. 574
Pr. 451
Pr. 830, Pr. 831
Pr. 832, Pr. 836
Pr. 833
Pr. 834, Pr. 835
Pr. 837
Description
Third Function Refer to
Parameter Number Page
Pr. 112 142
Pr. 113 155
Pr. 110 168
Pr. 110, Pr. 111 168

176
Pr. 114, Pr. 115 148

179

181

191

91

103

279

140

126

140
225
Pr.154
page 148
Pr.156
page 148
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