Estun E21S User manual

E21S Operation Manual
(Version: V1.05)

E21S Operation Manual
Contents
Preface......................................................................................................................1
Chapter 1 Product Overview ...................................................................................2
1.1 Product introduction.......................................................................................2
1.2 Operation panel .............................................................................................2
1.3 Displayer........................................................................................................4
Chapter 2 Operation Instruction .............................................................................5
2.1 Basic operation procedure .............................................................................5
2.2 Programming .................................................................................................6
2.2.1 Single-step programming ................................................................................... 6
2.2.2 Multi-step programming...................................................................................... 8
2.3 Parameter setting.........................................................................................11
2.4 Manual movement .......................................................................................14
Chapter 3 Alarm .....................................................................................................15
Appendix Common fault and troubleshooting..................................................17

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Preface
This manual describes operation of E21S numerical control device and is meant for
operators who are instructed for operation of the device. Operator shall read this manual and
know operation requirements before using this device.
Copy right is preserved by ESTUN. It is not allowed to add or delete part or all of the
manual content without ESTUN’s consent. Do not use part or all of manual content for the third
party’s design.
E21S device provides complete software control and has no mechanical protection device
for operator or the tool machine. Therefore, in case of malfunction, machine tool must provide
protection device for operator and external part of the machine tool. ESTUN is not responsible
for any direct or indirect losses caused by normal or abnormal operation of the device.
ESTUN preserves the right to modifying this manual in the event of function adding or print
error.

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Chapter 1 Product Overview
1.1 Product introduction
This product is equipped with the shear machine dedicated numerical control device which
is applicable to various users. Based on ensuring work precision, the cost of numerical control
shearing machine is reduced significantly.
Features and functions of this product are as following:
Back gauge can be controlled.
Cut-angle can be controlled.
Cut-gap can be controlled.
Stroke time can be controlled.
Intelligent positioning control.
Unilateral and bidirectional positioning which eliminates spindle clearance effectively.
Retract functions.
Automatic reference searching.
One-key parameter backup and restore.
Fast position indexing.
40 programs storage space, each program has 25 steps.
Power-off protection.
1.2 Operation panel
Operation panel is shown in Figure 1-1.
Figure 1-1 Operation panel

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Functions of panel keys are described in Table 1-1.
Table 1-1 Description of key functions
Key Function description
Delete key: delete all data in input area on left bottom of
displayer.
Enter key: confirm the input content. If no content is input, the key
has the similar function to direction key .
Start key: automatic start-up, top left corner of the key is operation
indicator LED. When operation is started, this indicator LED is on.
Stop key: stop operation, top left corner of the key is Stop
indicator LED. When initialize normal start-up and no operation,
this indicator LED is on.
Left direction key: page forward, cursor remove
Right direction key: page backward, cursor remove
Down direction key: select parameter downward
Function switch: switch over different function pages
Symbolic key: user input symbol, or start diagnosis.
~
Numeric key: when setting parameter, input value.
Decimal point key: when set up parameter, input decimal point.
Manual movement key: in case of manual adjustment, make
adjustment object move in forward direction at low speed.
Manual movement key: in case of manual adjustment, make
adjustment object move in backward direction at low speed.
High speed selection key: in case of manual adjustment, press
this key and press simultaneously, make adjustment object
move in increasing direction at high speed, then press ,
make adjustment object move in decreasing direction at high
speed.

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1.3 Displayer
E21S numerical control device adopts 160*160 dot matrix LCD displayer. The display area
is shown in Figure 1-2.
X: 200.00
Range: 0~9999.999mm
Single
XP: 20.00
A: 50.00 G: 9.98
DX: 2 F: 0
CUT: 3.00 PP: 0
DLY: 1.00 CP: 14
Title bar
Parameter
display area
Status bar
Figure 1-2 Display area
Title bar: display relevant information of current page, such as its name, etc.
Parameter display area: display parameter name, parameter value and system
information.
Status bar: display area of input information and prompt message, etc.
The paraphrases of shortening on this page are as shown in Table 1-2.
Table 1-2 The paraphrases of shortening
Shortening Description
X The current backgauge position
A The current cutting angle
G The current gap distance
XP The desired backgauge position
DX Backgauge retract distance
CUT Cutting delay
DLY Retracting delay
F Function output value
PP Preset workpiece
CP Current workpiece

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Chapter 2 Operation Instruction
2.1 Basic operation procedure
Basic switch over and operation procedure of the device is shown in Figure 2-1.
START
Single-Step Manual RUN
PROGRAMS Mutil-Step RUN
CONST
ALARM
P
Press
Press
l
Press
Press
System
parameter
Password: 14789
Diagnose
Password: 5656
P
Press
P
Press
P
Press
P
Press
Press
l
Press
Figure 2-1 Basic Operational Flow

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2.2 Programming
The device has two programming methods, which are single-step programming and
multi-step programming. User can set up programming according to actual demand.
2.2.1 Single-step programming
Single-step programming is generally used for processing single step to finish work piece
processing. When controller is power on, it will automatically enter single-step program page.
Operation steps
Step 1 After starting up, the device will enter setting up page of single-step program
automatically, as shown in Figure 2-2.
X: 200.00
Range: 0~9999.999mm
Single
XP: 20.00
A: 50.00 G: 9.98
DX: 2 F: 0
CUT: 3.00 PP: 0
DLY: 1.00 CP: 14
Figure 2-2 Single-step program setting page
Step 2 Click , select parameter that needs to be set up, press numerical key to input
program value, press to complete input.
[Note]Parameter can only be set when Stop indicator is on.
Setting range of singe step parameter is shown in Table 2-1.
Table 2-1 Set up range of singe step parameter
Parameter name Unit Range Remarks
X mm/inch - Current position of X axis, unable to be
modified.
A °- Current position of A axis, unable to be
modified.
G mm/inch - Current position of G axis, unable to be
modified.
XP mm/inch 0~9999.999 Program position of X axle.
DX mm/inch 0~9999.999 Retract distance of X axle;

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Parameter name Unit Range Remarks
DLY s 0~9.99 In case of single step, delay time for X axle
concession.
CUT s 0~9.99 There is a delay time for the cutter goes to the
next work-step, after it leaves the top dead
center.
[Note] Only the parameter CutDelay En. is
set to 1, displaying this parameter.
F None 0~3 Functions configure output.
PP None 0~9999 Number of preset work piece.
CP None 0~9999 Number of current work piece.
Step 3 Press , system will execute according to this program, as shown in Figure 2-3.
Single
X: 200.0
PP: 0
C: 0
metric
A: 3.0
G: 9.99
Figure 2-3 Single step operation page
----End
Operation example
On single-step program page, program back gauge position to 80.00mm, retract distance
to 50mm, concession waiting time to 2s, and work piece to 10.
Operation steps are shown in Table 2-2.
Table 2-2 Operation steps of single step example
Operation steps Operation
Step 1 Click , select “XP” parameter.
Step 2 Input 80.00 by numerical key.
Step 3 Click , confirm setting of this parameter.

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Operation steps Operation
Step 4 Click , select “DX” parameter, “DLY” parameter, “PP”
parameter respectively.
Step 5 Set up parameter to 50mm, 2s, 10 by numerical key.
Step 6
Click , system execute according to this program.
2.2.2 Multi-step programming
Multi-step program is used for processing single work piece of different processing steps,
realize consecutive implementation of multi-steps, and improve processing efficiency.
Operation step
Step 1 Power on, the device enters to single-step parameter set up page automatically.
Step 2 Click , switch to program manage page, as shown in Figure 2-4.
PROGRAMS
1program
0P
5ST
12 53 4
11 12 1513 14
67 108 9
16 17 2018 19
Figure 2-4 Program management page
Step 3 Click , select program serial number, or input program number directly,
such as input “1”.
Step 4 Click , enter multi-step program setting page, as shown in Figure 2-5.
ST: 5
PP: 20
Range: 0~25
PROGRAM1
CP: 9
DLY: 0.00
CtDly: 0.00
Figure 2-5 Multi-step program setting page

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Step 5 Click , select multi-step programming parameter which requires set up, input
setting up value, click , and the configuration takes effect.
Step 6 In completion of set up, click , enter step parameter set page, as shown in Figure
2-6.
X: 50.00
Range：0~9999.999mm
PROGRAM1
DX: 25.00
RP: 54
1/ 5ST
XP: 9.000
F: 1
Figure 2-6 Step parameter set page
Step 7 Click , select step parameter that needs to be set up, input program value,
click , and the setup takes effect.
Step 8 Click to switch over between steps. If the current step is the first step, click
to enter the last page of step parameter setting; if the current step is the last one,
click to enter the first page of step parameter setting.
Multi-step parameter setting range is shown in Table 2-3.
Table 2-3 Multi-step parameter setting range
Parameter name
Unit Range Remarks
ST None 0-25 Set up total processing step number of this
program
PP None 0~99999 Number of work piece to be processed,
decreasing piece when more than zero;
negative increasing count.
CP None 0~99999 Number of finished work piece
DLY s 0~9.99 Time between retract signal and concession
execution.

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Parameter name
Unit Range Remarks
CtDly s 0~9.99 There is a delay time for the cutter goes to the
next work-step, after it leaves the top dead
center.
[Note] Only the parameter CutDelay En. is
set to 1, displaying this parameter.
X mm/inch None Current position of X axle, can’t be modified.
XP mm/inch 0~9999.999 Program position of X axle.
DX mm/inch 0~9999.999 Distance of X axle concession.
RP - 1~99 Repeat times required by this step.
F - 0~3 F function configure output
Step 9 Click , system will operate according to this program, as shown in Figure 2-7.
X: 200.0
PP: 12345
C: 0
St: 1/ 5
PROGRAM1 Rp：1/54
A: 3.0
G: 9.99
Figure 2-7 Multi-step programming operation page
----End
Operation example
[Background] One work piece requires processing 50 as shown below;
First shear: 50mm;
Second shear: 100mm;
Third shear: 300mm;
[Analysis]according to work piece and technological conditions of machine tool:
First shear: X axle position is 50.0mm, concession 50mm;
The second shear: X axle position is 100.0mm, concession 50mm;
The third shear: X axle position is 300.0mm, concession 50mm;
Edit processing program of this work piece on No. 2 program.
Operation procedure is shown in Table 2-4.

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Table 2-4 Operation steps of multi-step programming example
Operation step Operation
Step 1 On single step parameter setting page, press to enter
program selection page.
Step 2 Input “2”, click , enter multi-step general parameter setting
page of program 2.
Step 3 Select “Program step”, input “3”, click , the setting takes
effect.
Step 4 Select “PP”, input “50”, click , the setup takes effect.
Step 5 Similar to step 3 and step 4, set “DLY” to 3 respectively.
Step 6 Click to enter first step setup page of step parameter.
Step 7
Select “XP”, input 50, click , the setup takes effect.
Step 8 Similar to step 7, set up “concession distance” and “repeat
times” to 50, 1 respectively.
Step 9 Click to enter second step setup page of step parameter,
the setup method is similar to that of step one.
Step 10 Click again, to enter third step setup page of step
parameter, the setup method is similar to that of step one and
step two.
Step11
Click , return to setup page of the first step.
Step12 Click , system will operate according to this program.
[Note]
In completion of multi-step programming, you should back to starting step before
launching the system; otherwise, the program will start position processing at current
step.
Press left and right direction key to circulate page turning and browsing among all step
parameters.
Program can be called and revised again.
In completion of processing all work pieces (50 in the example), the system stops
automatically. Restart directly will start another round of processing 50 work pieces.
2.3 Parameter setting
User can setup all parameters required for normal operation of the system, including
system parameter, X axle parameter.

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Step 1 On program management page, click to enter programming constant page, as
shown in Figure 2-8. On this page, programming constant can be set.
CONST
mm/inch: 0
0:mm 1:inch
中文/English: 0
Pulse Time: 0.020
Version: V1.10
Figure 2-8 Programming constant page
Range of programming constant setup is shown in Table 2-5.
Table 2-5 Range of programming constant setup
Parameter name
Unit Range Default Remarks
X-tea. in mm 0-9999.99 0 Input current X axle position when
teach enable.
mm/inch - 0 or 1 0 0: mm
1: inch
中文/English - 0 or 1 0 0: 中文
1: English
X-tea. In mm 0~9999.999 10 Input current X axle position when
teach enable.
G-tea. In mm 0~9.99 0 Input current G axle position when
teach enable.
Pulse Time s 0.000~1.000 0.020 The duration of the pulse signal.
Version - None - Software version information, V
refers to version, 1 indicates version
number, and 0 indicates version
level.
Step 2 Input password “1212”, click to enter system parameter setting page, as
shown in Figure 2-9.

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SYS PARA 1/ 2PG
X-digits: 3
Range：0~3
X-safe: 1.000
Step delay: 3.33
CutDelay En.: 1
MaxCut Delay: 9.99
X-tea.in: 200
G-tea.in: 5
Figure 2-9 System parameter setting page
Step 3 Step up parameter, parameter setup range is shown in Table 2-6.
Table 2-6 System parameter description
Parameter Unit
Range Default
Description
X-digits - 0-3 1 Decimal point displayed by X axle position
parameter
X-safe mm 0-9999.999 10 X axle keeps low speed in this range
Step delay s 0-9.99 0.5 Interval between valid change step signal and
change step operation executed
CutDelay
En.
- 0 or 1 0 0: disable
1: enable
MaxCut
Delay
s 0~9.99 0 Set the maximum cut delay time.
A-Enable - 0 or 1 1 0: disable
1: enable
A-Max °2.50 or 3.00 3.00 The max value of the Cut-Angle.
G-Enable - 0 or 1 1 0: disable
1: enable
G-Encoder
Dir.
- 0 or 1 0 0: Decrease
1: Increase
GMF - 1~99999999 40 Multiplication factor of G-axis, used for the
convert between pulses and mm.
GDF - 1~99999999 1 Division factor of G-axis, used for the convert
between pulses and mm.
Step 4 Click , return to programming constant page.
----End

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2.4 Manual movement
In single-step mode, axle movement can be controlled by pressing key manually. This
method helps user to adjust machine tool and work piece.
Step 1 On single step parameter setup page, click ，or to enter manual
page, as shown in Figure 2-10.
MANUAL
A: 0.00
X current pos.
X: 50.00
G: 9.98
Figure 2-10 Manual page
Step 2 Click , operate at low speed in increasing direction.
Click , operate at low speed in decreasing direction.
Click , click at the same time, and operate at high speed in increasing
direction (this operation is valid only when using frequency converter as the drive).
Click , click at the same time, and operate at high speed in decreasing
direction (this operation is valid only when using frequency converter as the drive).
Step 3 Click return to single step parameter setting page.
----End

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Chapter 3 Alarm
The device can detect internal or external abnormity automatically and send out alarm
prompt. Alarm message is available on alarm list.
Step 1 On programming management page, click to enter programming constant page.
Step 2 On programming constant page, click to enter “Alarm history” page to view all
alarm history.
As shown in Figure 3-1, the latest 6 alarms, alarm number and causes can be viewed
on this page.
A.24 Mach. Not ready
ALARM RECORD
Figure 3-1 Alarm history page
Alarm history and message is shown in Table 3-1.
Table 3-1 Alarm number and alarm message
Alarm number Alarm name Alarm description
A.01 Pieces reached Count reaches preset value
A.02 X.Pos < min. X-axis current position beyond the
minimum limit
A.03 X.Pos > max. X-axis current position beyond the
maximum limit
A.04 - The current position of the X-axis beyond
the soft limit
A.05 A Axis MAX A-axis current position beyond the
maximum limit
A.06 A Axis MIN A-axis current position beyond the
minimum limit
A.07 G Axis MAX G-axis current position beyond the
maximum limit
A.08 G Axis MIN G-axis current position beyond the
minimum limit

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Alarm number Alarm name Alarm description
A.11 Finished work When count reaches preset value,
system shut down automatically.
A.12 Out of UDP In single step and multistep mode, slider
is not on upper dead center.
A.22 Encoder abnor. Encoder voltage is too low
A.24 Mach. not ready The pump signal is invalid
A.25 Angle Abnormal Angle input error
A.26 X Stop Err The backgauge motor is abnormal stop.
A.28 X V2 Err The speed of backgauge motor is
abnormal on the Low-Speed Mode.
A.29 X V3 Err The speed of backgauge motor is
abnormal on the High-Speed Mode.
A.32 XPos < 0
X-axis position has exceeded the zero
point in manual mode, you should turn
back.
A.41 Para. error -
A.42 Power off -
A.43 System fault -

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Appendix Common fault and troubleshooting
Fault phenomena Trouble shooting
When power on, the device will not
display.
The electrode of power supply terminal is
connected error; please see the information of
power nameplate.
Voltage is too low.
Electrical outlet is not connected.
When X axle programming is
operating, back gauge motor does not
move, but Y AXIS motor moves.
Two motors are reversed. Reconnect.
When program is operating, motor
does not move.
Check whether mechanical part has been
locked or slider returns to upper dead center.
Check whether the motor wiring is connected
well.
Motor can’t switch from high speed to
low speed.
Check whether high-low speed signal has
been sent or motor power is too small.
Check whether the parameter of distance
conversion is correct.
When system is in multi-step
programming, the program can’t
change step.
Check when slider is on upper dead center, STEP
terminal is connected to +24V or not.
When system is in multi-step
programming, the program can’t count.
Check when slider is on upper dead center, STEP
terminal is connected to +24V or not.
When programming is operating, the
device loses control.
Check whether encoder cable is connected or
not.
Check whether the motor-direction wiring is
correct (X+, X-, A+, A-, G+, G-).
When programming is operating,
system actual position will not display
or change.
Check whether encoder wiring is correct or
encoder cable is connected well.