Toshiba TOSVERT VF-S15 series User manual

E6581865
TOSVERT VF-S15
My function-S Instruction Manual

E6581865
Contents
Contents ....................................................................................................................................................... - 1 -
1. Introduction.............................................................................................................................................. - 2 -
2. Parameters Used ..................................................................................................................................... - 2 -
3. Summary of My Function-S .................................................................................................................... - 2 -
4. Setting Parameters.................................................................................................................................. - 5 -
5. Examples of Setting .............................................................................................................................. - 12 -
Appendix 1 Table of My Function-S Parameters ................................................................................. - 25 -
Appendix 2 Computing Functions ........................................................................................................ - 27 -
Appendix 3 Input Terminal Function Selection Parameters............................................................... - 29 -
Appendix 4 Output Terminal Function Selection Parameters............................................................ - 31 -
Appendix 5 Internal Data........................................................................................................................ - 35 -
Appendix 6 Examples of Computing Function Settings..................................................................... - 37 -
CONTENTS ................................................................................................................................................... - 1 -
1. INTRODUCTION ....................................................................................................................................... - 2 -
2. PARAMETERS USED............................................................................................................................... - 2 -
3. SUMMARY OF MY FUNCTION-S ............................................................................................................ - 2 -
4. SETTING PARAMETERS......................................................................................................................... - 5 -
5. EXAMPLES OF SETTING ...................................................................................................................... - 12 -
APPENDIX 1 TABLE OF MY FUNCTION-S PARAMETERS ................................................................... - 25 -
APPENDIX 2 COMPUTING FUNCTIONS ..................................................................................................- 27 -
APPENDIX 3 ............................................................................................................................................... - 29 -
INPUT TERMINAL FUNCTION SELECTION PARAMETERS................................................................... - 29 -
APPENDIX 4 ............................................................................................................................................... - 31 -
OUTPUT TERMINAL FUNCTION SELECTION PARAMETERS............................................................... - 31 -
APPENDIX 5 INTERNAL DATA ................................................................................................................. - 35 -
APPENDIX 6 EXAMPLES OF COMPUTING FUNCTION SETTINGS ...................................................... - 37 -

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1. Introduction
My function-S adds programming capability to inverter’s input/output signals without external
relays or a PLC (programmable logic controller) in some cases.
The function makes it possible to reduce the space and cost required for the system.
2. Parameters used
My function-S uses the parameters  to .
 For details of each parameter, refer to the relevant section.
3. Summary of My function-S
My function-S has the combined terminal function that combines the functions of the inverter’s
input and output terminals and the relay sequence function that combines logic operation
functions.
Combined terminal function
The combined terminal function is activated to assign two or more functions to one terminal.
The function can reduce the numbers of terminals and cables for your required operations.
And it is possible to process some circuit without external circuit.
For example, you can assign the standby signal (default setting: always active) and the forward
run command signal (default setting: Terminal F) to one terminal (example: Terminal F).
Terminal F can perform the two functions.
See Example 1 in Chapter 5 for details.
<Standard> <My function-S>
F
S1
A
ssigned
standby signal
CC
F
(F+S1)
CC
Inverter Inverte
r

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<Standard> <My function-S>
Output frequency
[Hz]
terminal F
terminal S1
Coast stop Coast stop
term inal F
Output frequency
[Hz]
The combined terminal function can be used for output signals.
For example, you can assign the low speed detection signal (function No: 4) and small current
detection (function No: 26) to one terminal (Terminal OUT). When both signals are detected,
Terminal OUT outputs signal.
See Example 4 in Chapter 5 for details.
<Standard> <My function-S>
R
Y
OUT
Low speed detection signal
Small current detection signal
OUT Output signal by detection both
Low speed detection and Small
current detection.
Inverter
Output frequency
[Hz]
Output current
Low speed detection signal
Small current detection signal
Terminal OUT
Low speed level
Small current level

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Relay sequence function
In case that an inverter is controled by a PLC (programmable logic controller), the PLC receives,
processes, and sends the signals as processing result to the inverter.
(See Fig 3-1.)
The relay sequence function enables the inverter to perform itself in 28 steps without a PLC.
Because the function uses internal data and signals directly, the processing speed is faster than
control with the PLC.
Furthermore, the function enables the inverter to use its multi-function input and output signals
at the same time, and thus to perform various operations in a reduced number of steps.
X1
X2
From external
devices
To external
devices
Q1
Q2
~
F
S1
RY
OUT
~
PLC Inverter
Program
F
S1
From external
devices
To external
devices
RY
OUT
~
Inverter
Setting of My function-S
parameters
Fig. 3-1 Signal flow between PLC and inverter Fig. 3-2 Signal flow of inverter with
Myfunction-S
«Example» Start forward run with a push switch (non self hold switch).
Stop automatically if the output current is 120% or more of the rated current when
the output frequency is 5Hz or less.
For the sake of simplicity, stop signal input terminals are omitted here.
See Example 6 in Chapter 5 for details.
●Input and output symbols
F
CC
IX1 Inverter
●Timing chart
Output frequency [Hz]
Output current
Internal operation si
g
nal
5Hz
120%
IX1 input

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4. Setting parameters
This chapter explains how to set parameters related to the My function-S using the composition
of the My function-S and the rules.
Input terminals
Input signal terminals that can be used with the My function-S are as follows;
●Input terminals (8 terminals: F, R, RES, S1, S2, S3, VIA, VIB)
VF-S15 has 8 input terminals.
The input terminals are used for following 2 ways.
1) Input terminals to which assign multiple functionss
2) Simple ON-OFF signal input terminals like a PLC
In this manual, such input terminals are referred to as X1, X2 to X8 to distinguish them
from case 1).
●Virtual input terminals (4 terminals)
Virtual input terminals cannot be turned on and off electronically unlike actual input terminals.
Virtual input terminals can be turned on and off using communication function or My
function-S. You can assign the multiple functions as same as actual input terminals.

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●Internal terminals (8 terminals)
Internal terminals cannot be turned on and off electronically unlike actual input terminals.
Internal terminals can be turned on and off using communication function or My function-S.
You can not assign the multiple functions as same as the virtual input terminals.
They correspond to the internal relay used in PLC. They are used for preserving and reading
the status.
Computing function
The My function-S can perform logical operations on input/output signals and compares and
computes some data, such as frequency, current, and torque data that the inverter detects.
A table of computing functions is shown in Appendix 2.
Available data that the inverter detects are listed in Appendix 5.
●Logical comparison
●Commutation

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Output terminals
Output signal terminals used with the My function-S are following.
●Output terminals (3 terminals: RY, OUT, FL)
VF-S15 has 3 output terminals.
You can assign the multiple functions to the output terminals.
A table of output terminal functions is shown in Appendix 4. Only the positive logic settings
are used for My function-S.
Note) Negative logic settings of output terminal functions cannot be used for the My
function-S.
Computation results can be output by assigning the My function-S output 1 to 16 to the
output terminals .
Setting parameters
The My function-S consists of 7 units of the same composition. Each unit consists of 4 steps,
and therefore there are 28 steps in total. See Fig.4-1 for the composition of each unit.
Each step consists of one command.
Each unit begins with a data read (LD) command as step 1 and ends with a data transfer (ST)
command as step 4. You set the commands and objects to step 2 and 3 in accordance with the
requested functions.
Unit 1 Unit 2 Unit 7
Step 1 LD a900 Step 1 LD a906 Step 1 LD a953
Step 2 a901 a902→ Step 2 a907 a908 →→ Step 2 a954 a955
Step 3 a903 a904 Step 3 a909 a910 Step 3 a956 a957
Step 4 ST a905 Step 4 ST a911 Step 4 ST a958
Fig. 4-1 My function-S block diagram

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Parameters
Table 4-1 is the My function-S parameters.
Table 4-1 Table of My function-S parameters
Title Function Adjustment range Default setting
Step 1
(Objects) a900 Input function target 11
Input terminal number
: No function
: Terminal F
: Terminal R
: Terminal RES
: Terminal S1
: Terminal S2
: Terminal S3
: Terminal VIB
: Terminal VIA
to : -
 to : Virtual input terminal 1 to 4
 to : Internal terminal 1 to 8
 to :
My function-S output data number.
 to:
 Output selection number (Note 1)
 to : FD00 - FD99 (Note 2)
 to : FE00 - FE99 (Note 2)

Step 2
(Commands)  Input function command 12
: NOP (no operation)
: ST (move)
: STN (move (inversion))
: AND (logical product (BA ))
: ANDN (logical product (BA ))
: OR (logical sum (BA ))
: ORN (logical sum(BA ))
: EQ (equal)
: NE (not equal)
: GT (greater than)
: GE (greater or equal)
: LT (less than)
: LE (less or equal)
: ASUB (absolute)
: ON (on delay timer)
: OFF (off delay timer)
: COUNT1 (counter 1)
: COUNT2 (counter 2)
: HOLD (hold)
: SET (set)
: RESET (reset)
21: CLR(clear)
22: CLRN(clear (inversion))
23: ON2(on delay timer 2)
24: OFF2 (off delay timer 2)

Step 2
(Objects) a902Input function target 12 Same as a900 
Step 3
(Commands) a903 Input function command 13 Same as a901 
Step 3
(Objects) a904 Input function target 13 Same as a900 
Unit 1
Step 4
(Output to) a905 Output function assigned object 1 Same as a900 
Note 1: See Table 8-6 “Output terminal functions” in Appendix 4.
Note 2: See Table 8-7 “Data that My function-S can handle” in Appendix 5.

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Title Function Adjustment range Default setting
Step 1
(Objects) a906 Input function
target 21 Same as a900 
Step 2
(Commands) a907 Input function
command 22 Same as a901 
Step 2
(Objects) a908 Input function
target 22 Same as a900 
Step 3
(Commands) a909 Input function
command 23 Same as a901 
Step 3
(Objects) a910 Input function
target 23 Same as a900 
Unit 2
Step 4
(Output to) a911 Output function
assigned object 2 Same as a900 
Step 1
(Objects) a912 Input function
target 31 Same as a900 
Step 2
(Commands) a913 Input function
command 32 Same as a901 
Step 2
(Objects) a914 Input function
target 32 Same as a900 
Step 3
(Commands) a915 Input function
command 33 Same as a901 
Step 3
(Objects) a916 Input function
target 33 Same as a900 
Unit 3
Step 4
(Output to) a917 Output function
assigned object 3 Same as a900 
Step 1
(Objects) a935 Input function
target 41 Same as a900 
Step 2
(Commands) a936 Input function
command 42 Same as a901 
Step 2
(Objects) a937 Input function
target 42 Same as a900 
Step 3
(Commands) a938 Input function
command 43 Same as a901 
Step 3
(Objects) a939 Input function
target 43 Same as a900 
Unit 4
Step 4
(Output to) a940 Output function
assigned object 4 Same as a900 
Step 1
(Objects) a941 Input function
target 51 Same as a900 
Step 2
(Commands) a942 Input function
command 52 Same as a901 
Step 2
(Objects) a943 Input function
target 52 Same as a900 
Step 3
(Commands) a944 Input function
command 53 Same as a901 
Step 3
(Objects) a945 Input function
target 53 Same as a900 
Unit 5
Step 4
(Output to) a946 Output function
assigned object 5 Same as a900 
Step 1
(Objects) a947 Input function
target 61 Same as a900 
Step 2
(Commands) a948 Input function
command 62 Same as a901 
Step 2
(Objects) a949 Input function
target 62 Same as a900 
Step 3
(Commands) a950 Input function
command 63 Same as a901 
Step 3
(Objects) a951 Input function
target 63 Same as a900 
Unit 6
Step 4
(Output to) a952 Output function
assigned object 6 Same as a900 

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Title Function Adjustment range Default setting
Step 1
(Objects) a953 Input function
target 71 Same as a900 
Step 2
(Commands) a954 Input function
command 72 Same as a901 
Step 2
(Objects) a955 Input function
target 72 Same as a900 
Step 3
(Commands) a956 Input function
command 73 Same as a901 
Step 3
(Objects) a957 Input function
target 73 Same as a900 
Unit 7
Step 4
(Output to) a958 Output function
assigned object 7 Same as a900 
The four kinds of data in the table below, percentage, frequency, time (second), and the number
of times can be compared and computed, and they are specified with parameters for the object
to which commands are issued.
Title Function Adjustment range Default setting
a918Output percent data 1 % 
a919 Output percent data 2 % 
a920Output percent data 3 % 
a921 Output percent data 4 % 
a922 Output percent data 5 % 
a923Output frequency data 1 - Hz 
a924Output frequency data 2 - Hz 
a925Output frequency data 3 - Hz 
a926Output frequency data 4 - Hz 
a927Output frequency data 5 - Hz 
a928Output time data 1 - s 
a929Output time data 2 - s 
a930Output time data 3 - s 
a931Output time data 4 - s 
a932Output time data 5 - s 
a933Nnmber of times of output
data 1 -  times 
a934Nnmber of times of output
data 2 -  times 
The table below lists the four virtual input terminals available.
Title Function Adjustment range (Note 1) Default setting
a973 Virtual input terminal selection 1 0- 203 
a974 Virtual input terminal selection 2 0- 203 
a975 Virtual input terminal selection 3 0- 203 
a976 Virtual input terminal selection 4 0- 203 
Note 1: See Table 8-4 “Input terminal functions” in Appendix 3.

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Enable or disable state of My function-S
You can set enable or disable state of the My function-S
When you set the My function-S parameters, be sure to set a = (disabled) to
prevent the system from starting accidentally.
After setting the My function-S parameters, change  to (My function-S + permission
signal) or (My function-S always ON) to make My function-S ready to be enabled. (If you set
 =, My function-S is enabled when a permission signal is issued.)
Note: It takes a maximum of 0.5 second for a change of the My function-S parameters to be
reflected internally. Keep standby state at least 0.5 second after setting the parameters.
Title Function Adjustment range Default setting
 My function-S selection
: Disabled
:My function-S + permission signal
: My function-S always ON


(Disabled):
My function-S is disabled. 

(My function-S + permission signal):
My function-S is in standby state.
When you put input signal into the input terminal assigned functions  or  (My
function-S trigger signal), the My function-S is enabled.
(My function-S always ON):
My function-S is enabled when the inverter is turned on.
Note: You cannot change the parameter  during inverter operation. 
●In case that the My function-S is disabled
The My function-S settings are disabled.
If the input terminals are turned on, the inverter operates by the input terminal function.
●In case that the My function-S is in a standby state
All signals except the followings are recognized as OFF signals inside of the inverter.
1. My function-S trigger signal
2. Emergency stop and reset command
Note: Don’t use the input terminals assigned the above functions in the My function-S. Or the
My function-S permission, the emergency stop function, etc might not activate normally.
●In case that My function-S is enabled
If the input terminals are turned on, the inverter operates by the My function-S.

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5. Examples of setting
This chapter gives some examples of setting.
Note that the settings described below are examples and there are other ways to set a function
for some examples.
●Examples of the setting of the combined terminal function
Example 1: Performing 2 functions by 1 terminal.
Standby signal is connected with Terminal F (Forward run command). (F+ST)
Standby signal is connected with Terminal R (Reverse run command). (R+ST)
Example 2: Performing 2 functions by 1 terminal.
Performing standby and forward run command by the Terminal S1. (ST+F)
Example 3: Performing 3 functions by 1 terminal.
Performing standby, forward run command, and preset-speed command 1 by the
TerminalS1.(ST+F+SS1)
Example 4: Output signal by logical product of 2 functions.
Output the signal on the condition of detecting both a low-speed signal and a small
current signal from Terminal OUT.
●Examples of the setting of the relay sequence function
Example 5: Operation with a combination of 2 input signals
Forward run: Either input terminal is turned on.
Reverse run: Both input terminals are turned on.
Stop : Both input terminals are turned off.
Example 6: Operation with push type switch.
Example 7: Automatic stop by some conditions.
Automatically stop on the condition of 5Hz or less of output frequency and 120% or
more of output current.

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Examples of the setting of the combined terminal function
<Example 1: Performing 2 functions by 1 terminal>
Standby signal is connected with Terminal F (Forward run command). (F+ST)
Standby signal is connected with Terminal R (Reverse run command). (R+ST)
See Fig 5-1 for wiring diagram and Fig.5-2 for block diagram.
Assign the forward run command (F) to Terminal F and reverse run command (R) to
Terminal R. (Default setting)
Assign the standby (ST) to virtual input terminal.
If the Terminal F (R) is turned on, the virtual terminal is turned on automatically.
F (R) +ST functions are performed.
(F+ST) function
C
C
terminal
F terminal
Inverter control
CC terminal
F terminal
R function
VF-S15
F function
VT2
VT1=Virtual in
p
ut terminal 1
My function-S
R terminal (R+ST) function
ST function
R
terminal
VT1
S
T
function
VT2=Virtual in
p
ut terminal 2
Fig.5-1WiringdiagramforExample 1 Fig. 5-2 Block diagram for Example 1
Parameter setting
Title Parameter setting Description
a977 (Default)Set to “Disabled” of the My function-S.
f111 (Default)Assign the forward run command to the Terminal F.
f112 (Default)Assign the reverse run command to the Terminal R.
a973  Assign the standby to the virtual input terminal 1.
Prior
setting 
a974  Assign the standby to the virtual input terminal 2.
Step 1 a900  Read Terminal F input signal (LD F).
a901 (Default)
Step 2 a902 (Default)NOP command (no operation)
a903 (Default)
Step 3 a904 (Default)NOP command (no operation)
Unit 1
Step 4 a905  Transfer the result to the virtual input terminal 1.
Step 1 a906  Read Terminal R input signal (LD R).
a907 (Default)
Step 2 a908 (Default)NOP command (no operation)
a909 (Default)
Step 3 a910 (Default)NOP command (no operation)
Unit 2
Step 4 a911  Transfer the result to the virtual input terminal 2.
– –a977  Set to “My function-S always ON”.

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<Example 2: Performing 2 functions by 1 terminal>
Performing standby and forward run command by the Terminal S1. (ST+F)
See Fig 5-3 for wiring diagram and Fig.5-4 for block diagram.
Assign the standby (ST) to Terminal S1.
Assign the forward run command (F) to virtual input terminal 1.
If the Terminal S1 is turned on, the virtual terminal is turned on automatically.
ST+F functions are performed.
(ST＋F) function
CC terminal
S1 terminal
Inverter control
CC terminal
S1 terminal
F function
VF-S15
ST function
VT1
VT1=Virtual in
p
ut terminal 1
My function-S
Fig.5-3WiringdiagramforExample 2 Fig. 5-4 Block diagram for Example 2
Paramerter setting
Title Parameter setting Description
a977 (Default)Set to “Disabled” of the My function-S.
f114  Assign the standby to the Terminal S1.
Prior
setting –
a973  Assign the forward run command to the virtual input
terminal 1.
Step 1 a900  Read Terminal S1 input signal (LD S1).
a901 (Default)
Step 2 a902 (Default)NOP command (no operation)
a903 (Default)
Step 3 a904 (Default)NOP command (no operation)
Unit 1
Step 4 a905  Transfer the result to the virtual input terminal 1.
– –a977  Set to “My function-S always ON”.

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<Example 3: Performing 3 functions by 1 terminal>
Performing standby, forward run command and preset-speed command 1 by the
TerminalS1.(ST+F+SS1)
See Fig 5-5 for wiring diagram and Fig.5-6 for block diagram.
Assign the standby (ST) to Terminal S1.
Assign the forward run command (F) to virtual input terminal 1.
Assign the preset-speed command 1 (SS1) to virtual input terminal 2.
If the Terminal S1 is turned on, the virtual terminals are turned on automatically.
ST+F+SS1 functions are performed.
ST+F+SS1
CC terminal
S1 termina l
Inverter control
CC terminal
S1 terminal
SS1 function
VF
-
S1
5
ST function
F function
VT1
VT2
My function-S
VT1= Virtual input terminal 1
VT2= Virtual input terminal 2
Fig. 5-5 Wiring diagram for Example 3 Fig. 5-6 Block diagram for Example 3
Paramerter setting
Title Parameter setting Description
a977 (Default)Set to “Disabled” of the My function-S.
f114  Assign the standby to the Terminal S1.
a973  Assign the forward run command to the virtual input
terminal 1.
Prior
setting –
a974  Assign the preset-speed command 1 to the virtual input
terminal 2.
Step 1 a900  Read Terminal S1 input signal (LD S1).
a901 
Step 2 a902  
Transfer command
Tsansfer the result to the virtual input terminal 1.
a903 (Default)
Step 3 a904 (Default)NOP command (no operation)
Unit 1
Step 4 a905  Transfer the result to the virtual input terminal 2.
– –a977  Set to “My function-S always ON”.

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<Example 4: Output signal by logical product of 2 functions>
Output the signal on the condition of detecting both a low-speed signal and a small
current signal from Terminal OUT.
See Fig 5-7 for block diagram.
Compute by logical product (AND) of a low-speed signal and a small current signal.
Transfer the result to the My function-S output1, and output signal from Terminal OUT.
My function-S
output 1
OUT
Low-speed
signal
Small-current
signal
Computations by
My function-S
V
F-S15
Inverter function
Fig. 5-7 Block diagram for Example 4
Paramerter setting
Title Parameter setting Description
a977(Default)Set to “Disabled” of the My function-S. Prior
setting –f131 Assign the My function-S output 1 to the Terminal OUT.
Step 1 a900  Read the low speed signal (LD LOW)
a901 AND command
Step 2 a902  The logical product of low speed signal and small
current signal.
a903(Default)
Step 3 a904(Default)NOP command (no operation)
Unit 1
Step 4 a905  Transfer the logical product to the My function-S
output 1.
– –a977 Set to “My function-S always ON”.

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Examples of the setting of the relay sequence function
This section gives an explanation of the relay sequence function using ladder diagrams.
One unit consists of maximum 4 steps. If your sequence consists of 5 steps or more, you need
to change the composition to 4 steps or less.
<Example 5: Operation with a combination of 2 input signals>
Input terminals are used as ON/OFF signal lilke a PLC in this example.
Forward run: Either input terminal is turned on.
Reverse run: Both input terminals are turned on.
Stop : Both input terminas are turned off.
See Fig 5-8 for wiring diagram and timing chart.
IX1 (F)
CC
IX2 (R)
SW-IX1
SW-IX2
Output frequency
[Hz]
IX1 signal
IX2 signal
Forward
Reverse
Inverter
Fig. 5-8 Wiring diagram and timing chart for Example 5
Following is the ladder diagram.
The left is general sequence.The sequence of forward run command consists of 5 steps.
You need to change the composition to 4 setps as the right for the My function-S.
IX2
F
IX1
IX1
IX2
R
IX1 IX2
: Forward run command
: Reverse run command
F
R
Unit 1 Unit 2 Unit 3
F
IX2
IT1
IX1
IX1
IX2
IT1
R
IX1 IX2
IT1: Internal terminal 1
Step 1 Step 2 Step 3 Step 4

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Parameter setting
Title Parameter setting Description
a977(Default)Set to “Disabled” of the My function-S.
f111 Assign the “no function” to the Terminal F.
Use the Terminal F as a simple input terminal (IX1).
f112 Assign the “no function” to the Terminal R.
Use the Terminal R as a simple input terminal (IX1).
a973 Assign the forward run command to the virtual input
terminal 1 (VT1).
Prior
setting –
a974 Assign the reverse run command to the virtual input
terminal 2 (VT2).
Step 1 a900 Read IX1 (F) terminal input signal. (LD IX1)
a901
Step 2 a902 ANDN command


2IX1IX 
a903(Default)
Step 3 a904(Default)NOP command (no operation)
Unit 1
Step 4 a905  Transfer the result to the internal terminal 1.


1IT2IX1IX 
Step 1 a906 Read IX2 (R) terminal input signal. (LD IX2)
a907
Step 2 a908 ANDN command


1IX2IX 
a909
Step 3 a910  OR command




1IT1IX2IX 
Unit 2
Step 4 a911  Transfer the result to the virtual input terminal 1.




1VT1IT1IX2IX 
Step 1 a912 Read IX1 (F) terminal input signal. (LD IX1)
a913
Step 2 a914 AND command


2IX1IX 
a915(Default)
Step 3 a916(Default)NOP command (no operation)
Unit 3
Step 4 a917  Transfer the result to the virtual input terminal 2.


2VT1IX2IX 
– –a977 Set to “My function-S always ON”.
NE (mismatch) command enables to combine the steps of unit 1 and 2.
If the signal of input terminal 1 and 2 don’t match, forward run command is valid.

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Title Parameter setting Description
Step 1 a900 Read IX1 (F) terminal input signal. (LD IX1)
a901
Step 2 a902 NEQ command






2IX1IX2IX1IX 
a903(Default)
Step 3 a904(Default)NOP command (no operation)
Unit 1
Step 4 a905  Transfer the result to the virtual input terminal 1.






1VT2IX1IX2IX1IX 
<Example 6: Operation with push type switch>
Start and stop by push type (non self-hold type) switches.
Start with the forward run command (reverse run command), and stop with the stop
command.
See Fig 5-9 for wiring diagram and timing chart.
IX1 (F)
CC
SW-F
IX2 (R)
SW-R
IX3 (S1)
SW-STOP
Inverter
Output frequency
[Hz]
IX1 signal
IX2 signal
IX3 signal
Fig. 5-9 Wiring diagram and timing chart for Example 6
Construct self-hold circuit for each forward run command and reverse run command.
Break the self-hold by the other command or a stop command.
Following is the ladder diagram.
The left is general sequence of self-hold circuit. Each unit consists of 5 steps.
You need to change the unit A and B to two units each and make composition of 4
setps according to the My function-S.