Toshiba TOSVERT VF-S15 Instruction Manual page 24

Parameter setting by the ladder diagram
a977
f111
f114
Prior
–
setting
a918
a923
a973
Step 1
a900
a901
Step 2
a902
Unit 1
a903
Step 3
a904
Step 4 a905
Step 1
a906
a907
Step 2
a908
Unit 2
a909
Step 3
a910
Step 4
a911
IX1
VT1
Frequency （FE00） ≦ 5Hz
Output current （FD03） ≧ 120%
IT1
VT1: Virtual input terminal (forward run command)
Title Parameter setting
 (Default)














 (Default)
 (Default)

VT1
IT3 IX2
IT1
IT2
IT3
IT2
Set My function-S to "Disabled".
Assign the "no function" to the Terminal F.
Use the Terminal F as a simple input terminal (IX1).
Assign the "no function" to the Terminal S1.
Use the Terminal S1 as a simple input terminal (IX2).
Set the limit at 120% to use it as a reference value
when comparing and computing currents.
Set the limit at 5Hz to use it as a reference value when
comparing and computing frequencies.
Assign the forward run command to the virtual input
terminal 1 (VT1)
Read IX1(F) terminal input signal (LD IX1)

OR command IX 
ANDN command
Transfer the result to the internal terminal 4 (IT4)


IX 1 VT 1 IT 3
 
Read IT4(Internal terminal 4) signal (LD IT4)
ANDN command
NOP command (no operation)
Ttansfer the result to the virtual input terminal 1 (VT1).
 

IT 4 IX 2 VT 1

- 23 -
Step 1 Step 2
IX1
VT1
IT4 IX2
Output
≦ 5Hz
frequency
Output
≧120%
current
IT1 IT2
IT1: Internal terminal 1
IT2: Internal terminal 2
IT3: Internal terminal 3
IT4: Internal terminal 4
Description

1 VT 1
 
IX 1 VT 1 IT 3
 

IT 4
 
IT  4 IX 2
E6581865
Step 3 Step 4
IT4
IT3
VT1
IT1
IT2
IT3