Condition Selection Of Function Validity By The Second Function Selection Signal (Rt) (Rt Signal, Pr. 155); Condition Selection Of Function Validity By The Second Function Selection Signal (Rt) - Mitsubishi Electric FR-F720P-0.75K to 110K Instruction Manual

Fr-f700p series
Hide thumbs Also See for FR-F720P-0.75K to 110K:
Table of Contents

Advertisement

4.11.3 Condition selection of function validity by the second function selection signal (RT)

(RT signal, Pr. 155)
You can select the second function using the external terminal (RT signal).
You can also set the RT signal operation condition (reflection time).
Parameter
Name
Number
RT signal function validity
155
condition selection
The above parameters can be set when Pr. 160 User group read selection = "0". (Refer to page 201)
⋅ When the RT signal turns ON, the second function becomes valid.
⋅ 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 main motor and sub motor
Second function
connection diagram
Inverter
Start
STF/STR
Second
function
RT
selection
RH
High speed
RM
Middle speed
SD
When the RT signal is ON, the following functions are selected at the same time.
First Function
Function
Parameter Number
Torque boost
Base frequency
Acceleration time
Deceleration time
Electronic thermal
relay function
Stall prevention
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
⋅ Changing the terminal assignment using Pr. 178 to Pr. 189 (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.189 (input terminal function selection)
Initial Value
Setting Range
0
Second acceleration/deceleration time example
Setting value "0"
RT
RH
RM
Second Function
Parameter Number
Pr. 0
Pr. 46
Pr. 3
Pr. 47
Pr. 7
Pr. 44
Pr. 8
Pr. 44, Pr. 45
Pr. 9
Pr. 51
Pr. 22
Pr. 48, Pr. 49
Refer to page 133
Function assignment of external
Second function is immediately valid with ON of the
0
RT signal.
Second function is valid only during the RT signal is
ON and constant speed operation.
10
(invalid during acceleration/deceleration)
(initial value)
Acceleration
time is reflected
Time
Applied control mode
( : Valid, ⎯: Invalid)
S
S
S
V/F
V/F
V/F
MFVC
MFVC
MFVC
terminal and control
Description
Refer to
Page
IPM
IPM
IPM
87
98
109
109
117
91
137
4

Hide quick links:

Advertisement

Table of Contents
loading

Table of Contents