Revision Record Version Date Description V1.00 2012-06-04 Initial release. V1.01 2013-03-14 Modify the password of entering to SYS PARA page. V1.02 2013-03-27 Revise some expression in this document. V1.03 2013-09-22 Update the description of the parameters. V1.04 2014-06-20 Parameter Pulse Time is added on the CONST page. V1.05 2014-07-31 Monitor-Speed Detection function is added.
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.
E21 Operation Manual Chapter 1 Product Overview 1.1 Product introduction This product is equipped with press brake machine dedicated numerical control device which is applicable to various users. On the basis of ensuring work precision, the cost of numerical control bending machine is reduced significantly.
E21 Operation Manual Table 1-1 Description of key functions 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...
E21 Operation Manual 1.3 Displayer E21 numerical control device adopts 160*160 dot matrix LCD displayer. The display area is shown in Figure 1-2. Single Title bar 9875.965 9875.123 Parameter 9875.965 display area 9875.965 9875.965 1.00 DLY: 1.00 Status bar Range:0~9999.999mm Figure 1-2 Display area Title bar: display relevant information of current page, such as its name, etc.
E21 Operation Manual 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 When the parameter X or Y displays ******** on the page, please do not enter the RUN page or Manual page, unless you have reset the teach function of X-axis or Y-axis.
E21 Operation Manual Parameter name Unit Set up range Remarks mm/inch Current position of Y axis, unable to be modified. mm/inch 0~9999.999 Program position of X axis. mm/inch 0~9999.999 Target position of Y axis. mm/inch 0~9999.999 Retract distance of X axis.
E21 Operation Manual Operation steps Operation Step 3 Press , confirm setting of this parameter. Step 4 Press , select “YP” parameter. Step 5 Input 100.0 by numerical key. Step 6 Press , confirm set up of this parameter. Step 9 Press , select “DX”...
Page 12
E21 Operation Manual PROGRAM1 DLY: 1.00 Range:0~25 Figure 2-5 Multi-step program setting page Step 5 Press , select multi-step programming parameter which requires set up, input setting up value, press , and the set up takes effect. Step 6 In completion of set up, press , enter step parameter set page, as shown in Figure 2-6.
Page 13
E21 Operation Manual Parameter name Unit Setting range Remarks Preset work piece number 0~9999 Number of work piece to be processed, decreasing piece when more than zero; negative increasing count. Current work piece number 0~9999 Number of finished work piece Concession delay 0~99.99...
Page 14
E21 Operation Manual Rp:1/54 PROGRAM 1 5.000 12345.000 PP: 12345 St: 1/ 5 Figure 2-7 Multi-step programming operation page Operation example [Background] One work piece requires processing 50 as shown below; First bend: 50mm; Second bend: 100mm; Third bend: the other direction 300mm;...
E21 Operation Manual Table 2-6 System parameter setup range Parameter Name Unit Range Default Remarks X-digits Decimal point displayed by X axis position parameter Y-digits Decimal point displayed by Y axis position parameter X-safe 0~9999.999 X axis keeps low speed in this...
Page 18
E21 Operation Manual Step 2 Press , operate at low speed in increasing direction. Press , operate at low speed in decreasing direction. Press , press at the same time, and operate at high speed in increasing direction (this operation is valid only when using frequency converter as the drive).
E21 Operation Manual 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, press to enter programming constant page. Step 2 On programming constant page, press to enter “Alarm history”...
E21 Operation Manual Alarm number Alarm name Alarm description A.13 X Un-teachIn Reset the teach function of X-axis A.14 Y Un-teachIn Reset the teach function of Y-axis A.21 Oil pump not started Oil pump signal loss A.22 Encoder failure Encoder voltage is too low.
E21 Operation Manual 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.
Need help?
Do you have a question about the E21 and is the answer not in the manual?
Questions and answers