Function Assignment Of External Terminal And Control; Input Terminal Function Selection (Pr. 178 To Pr. 189) - Mitsubishi Electric FR-A720-0.4K Instruction Manual

4.15 Function assignment of external terminal and control

Purpose
Assign function to input terminal
Set MRS signal (output shutoff) to
normally closed contact specification
Make the second (third) function
valid only during constant speed
operation
Assign start signal and forward/
reverse command to other signals
Assign function to output terminal
Detect output frequency
Detect output current
Remote output function
Detect output torque

4.15.1 Input terminal function selection (Pr. 178 to Pr. 189)

Use these parameters to select/change the input terminal functions.
Parameter
Name
Number
STF terminal function
178
selection
STR terminal function
179
selection
180 RL terminal function selection
181 RM terminal function selection
182 RH terminal function selection
183 RT terminal function selection
184 AU terminal function selection
185 AM terminal function selection
186 CS terminal function selection
MRS terminal function
187
selection
STOP terminal function
188
selection
RES terminal function
189
selection
(1) Input terminal function assignment
⋅ Use Pr. 178 to Pr. 189 to set the functions of the input terminals.
⋅ Refer to the following table and set the parameters:
Signal
Setting
Name
Pr. 59 = 0 (initial value)
0 RL
Pr. 59 =1, 2
Pr. 270 =1, 3
Pr. 59 = 0 (initial value)
1 RM
Pr. 59 =1, 2
Input terminal function
selection
MRS input selection
RT reflection time selection
Start signal (STF/STR)
operation selection
Output terminal function
assignment
Up-to-frequency sensitivity
Output frequency detection
Low speed detection
Output current detection
Zero current detection
Remote output
Output torque detection
Initial
Value
60
61
0
1
2
3
4
5
6
24
25
62
Function
Low-speed operation command
Remote setting (setting clear)
*1
Stop-on-contact selection 0
*2
Middle-speed operation command
Remote setting (deceleration)
*1

Function assignment of external terminal and control

Parameter that must be Set
Pr. 178 to Pr. 189
Pr. 155
Pr. 250
Pr. 190 to Pr. 196
Pr. 41 to Pr. 43, Pr. 50, Pr. 116,
Pr. 865
Pr. 150 to Pr. 153, Pr. 166,
Pr. 167
Pr. 495 to Pr. 497
Pr. 864
Initial Signal
STF (forward rotation command)
STR (reverse rotation command)
RL (low-speed operation command)
RM (middle-speed operation command)
RH (high speed operation command)
RT (second function selection)
AU (terminal 4 input selection)
JOG (Jog operation selection)
CS (selection of automatic restart
after instantaneous power failure)
MRS (output stop)
STOP (start self-holding selection)
RES (inverter reset)
Related Parameters
Pr. 4 to Pr. 6, Pr. 24 to Pr. 27,
Pr. 232 to Pr. 239
Pr. 59
Pr. 270, Pr. 275, Pr. 276
Pr. 4 to Pr. 6, Pr. 24 to Pr. 27, Pr.
232 to Pr. 239
Pr. 59
Refer to Page
221
Pr. 17 224
225
226
228
235
237
239
238
Setting Range
0 to 20, 22 to 28, 42 to 44,
60, 62, 64 to 71, 9999
0 to 20, 22 to 28, 42 to 44,
61, 62, 64 to 71, 9999
0 to 20, 22 to 28, 42 to 44,
62, 64 to 71, 9999
0 to 20, 22 to 28, 42 to 44,
62 to 71, 9999
0 to 20, 22 to 28, 42 to 44,
62, 64 to 71, 9999
Refer to
Page
Pr.174
page 293
Pr.190
page 228
4
161
165
204
161
165
221