{"id":85332,"date":"2026-06-02T06:23:07","date_gmt":"2026-06-02T06:23:07","guid":{"rendered":"https:\/\/www.harsle.com\/?post_type=docs&p=85332"},"modified":"2026-06-02T06:28:15","modified_gmt":"2026-06-02T06:28:15","password":"","slug":"how-to-correctly-do-esa-s929-ram-reference","status":"publish","type":"docs","link":"https:\/\/www.harsle.com\/pt\/docs\/how-to-correctly-do-esa-s929-ram-reference\/","title":{"rendered":"How to Correctly Do ESA S929 Ram Reference?"},"content":{"rendered":"

Correctly performing ESA<\/a> S929 ram reference\u00a0is an obligatory step after powering on your Dobradeira<\/a>. Without referencing the ram, you cannot enter the automatic phase or execute any work program. The back\u2011gauges axes reference, on the other hand, is facultative \u2013 but it is highly advisable whenever you suspect that the axes may have been moved manually while the control was off. In this guide, I\u2019ll walk you through the exact procedure to reference the ram, explain why it is mandatory, and show you how to verify that the axis is correctly referenced (the red square turns green). You will also learn how to optionally reference the back\u2011gauges. By the end, you\u2019ll be able to safely and quickly prepare your ESA S929 for automatic bending.<\/p>\n\n\n\n

Step\u2011by\u2011Step \u2013 How to Correctly Do ESA S929 Ram Reference<\/h2>\n\n\n\n

Follow these steps carefully. The procedure uses the press brake pedals and the control panel.<\/p>\n\n\n\n

Step 1 \u2013 Press the Reference Button<\/h3>\n\n\n\n

On the ESA S929 control panel, locate and press the button. <\/p>\n\n\n\n

\"ESA<\/figure>\n\n\n\n

This tells the control that you want to reference the ram.<\/p>\n\n\n\n

Step 2 \u2013 Lower the Ram If Needed<\/h3>\n\n\n\n

If the ram is currently in the up position, you must first lower it slightly to enable the referencing movement. Press the down pedal<\/strong> (usually the right pedal or a dedicated down pedal) to move the ram downward a few millimeters.<\/p>\n\n\n\n

Step 3 \u2013 Raise the Ram to Find Reference<\/h3>\n\n\n\n

Now press the up pedal<\/strong>. The ram will automatically move upward until it reaches the reference position (typically a mechanical switch or an encoder index pulse). Once the axis is referenced, the control will stop the movement.<\/p>\n\n\n\n

Step 4 \u2013 Verify the Reference Status<\/h3>\n\n\n\n

Look at the axis position display on the screen. Beside the ram position value, a red square will turn green<\/strong> when the reference is successfully completed. <\/p>\n\n\n\n

\n
\"ESA<\/figure>\n\n\n\n
\"ESA<\/figure>\n<\/figure>\n\n\n\n

This is your visual confirmation that ESA S929 ram reference<\/strong> has been done correctly.<\/p>\n\n\n\n

Step 5 \u2013 Ready for Automatic Mode<\/h3>\n\n\n\n

After the ram is referenced, the machine is ready to run programs in automatic mode. You can now load a program and press START.<\/p>\n\n\n\n

How to Repeat the Reference Without Powering Off<\/h3>\n\n\n\n

If you need to repeat the ram reference procedure (for example, after a manual movement or if you suspect an issue), you do not need to reboot the NC. Simply:<\/p>\n\n\n\n

    \n
  • Press the button below.<\/li>\n<\/ul>\n\n\n\n
    \"ESA<\/figure>\n\n\n\n
      \n
    • Pressione o pedal para cima<\/strong>. The ram will re\u2011reference itself.<\/li>\n<\/ul>\n\n\n\n

      Optional Reference \u2013 Back\u2011Gauges Axes<\/h2>\n\n\n\n

      While correctly doing ESA S929 ram reference is mandatory, referencing the back\u2011gauges axes (X, Z, R, etc.) is optional but recommended. The current back\u2011gauge target positions may be incorrect if an axis was moved manually when the numeric control was off.<\/p>\n\n\n\n

      When to Reference Back\u2011Gauges<\/h3>\n\n\n\n
        \n
      • After a power cycle, if you are uncertain about the back\u2011gauge positions.<\/li>\n\n\n\n
      • If you manually pushed or turned the back\u2011gauge screws while the machine was off.<\/li>\n\n\n\n
      • As a daily best practice for high\u2011precision work.<\/li>\n<\/ul>\n\n\n\n

        How to Reference Back\u2011Gauges Axes<\/h3>\n\n\n\n
          \n
        • Press the button on the control panel.<\/li>\n<\/ul>\n\n\n\n
          \"ESA<\/figure>\n\n\n\n
            \n
          • Then press another button.<\/li>\n<\/ul>\n\n\n\n
            \"ESA<\/figure>\n\n\n\n
              \n
            • The back\u2011gauges axes will move toward their reference points. Once referenced, the red squares next to each axis position reading will turn green.<\/li>\n<\/ul>\n\n\n\n

              Troubleshooting Common ESA S929 Ram Reference Issues<\/h2>\n\n\n\n

              Even when following the correct procedure, you may encounter occasional problems. Here is how to resolve them.<\/p>\n\n\n\n

              The Ram Does Not Move When Pressing the Pedal<\/h3>\n\n\n\n
                \n
              • Causa:<\/strong> The reference button may not have been pressed first, or the machine is still in a fault state.<\/li>\n\n\n\n
              • Solu\u00e7\u00e3o:<\/strong> Press the reference button again. Check for any alarm messages on the screen. Reset the control if needed.<\/li>\n<\/ul>\n\n\n\n

                The Red Square Never Turns Green<\/h3>\n\n\n\n
                  \n
                • Causa:<\/strong> The ram may not have reached the reference switch, or the switch is faulty. The axis might be at its mechanical limit.<\/li>\n\n\n\n
                • Solu\u00e7\u00e3o:<\/strong> Manually jog the ram down a few centimeters using the pedal (with reference mode active), then try raising again. If the problem persists, contact maintenance.<\/li>\n<\/ul>\n\n\n\n

                  The Machine Still Does Not Allow Automatic Mode After Referencing<\/h3>\n\n\n\n
                    \n
                  • Causa:<\/strong> Other axes (e.g., back\u2011gauges) may require referencing even if optional. Some machine configurations require all axes to be referenced.<\/li>\n\n\n\n
                  • Solu\u00e7\u00e3o:<\/strong> Perform the optional back\u2011gauges reference procedure. Also, check that no emergency stops are active and that all safety gates are closed.<\/li>\n<\/ul>\n\n\n\n

                    The Ram References but the Position Value Seems Wrong<\/h3>\n\n\n\n
                      \n
                    • Causa:<\/strong> The reference point may have been set incorrectly in the parameters, or the encoder is drifting.<\/li>\n\n\n\n
                    • Solu\u00e7\u00e3o:<\/strong> Perform a full power cycle and repeat the reference. If the issue remains, recalibrate the axis reference position using the machine parameters (requires service level access).<\/li>\n<\/ul>\n\n\n\n

                      Perguntas Frequentes (FAQ)<\/h2>\n\n\n
                      \n
                      \n
                      \n

                      Why is ram reference obligatory but back\u2011gauges reference only optional?<\/strong><\/h3>\n
                      \n\n

                      The ram position directly affects bend angle and safety. The control must know exactly where the ram is before any automatic movement. Back\u2011gauges, on the other hand, can be homed automatically at the start of each program in many cases, but referencing them manually ensures accuracy.<\/p>\n\n<\/div>\n<\/div>\n

                      \n

                      Does referencing the ram also reference the back\u2011gauges automatically?<\/strong><\/h3>\n
                      \n\n

                      No. They are independent. You must perform a separate operation for the back\u2011gauges axes.<\/p>\n\n<\/div>\n<\/div>\n

                      \n

                      Can I reference the ram while a program is loaded?<\/strong><\/h3>\n
                      \n\n

                      Yes, you can reference at any time before starting the automatic cycle. The program data remains unchanged.<\/p>\n\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n\n\n

                      Conclus\u00e3o<\/h2>\n\n\n\n

                      Correctly doing ESA S929 ram reference is the first and most critical step after powering on your press brake. By following the simple pedal procedure \u2013 press the reference button, lower the ram if needed, then raise it \u2013 you ensure that the control knows the exact ram position. The green square confirmation gives you peace of mind. Remember, ram reference is mandatory; back\u2011gauges reference is optional but recommended for precision. If you ever encounter issues, use the troubleshooting tips above. Now that you know how to correctly perform ESA S929 ram reference, you can confidently move on to loading and running your bending programs. For further guidance, refer to the ESA S929 operator manual or contact our HARSLE technical support team.<\/p>","protected":false},"excerpt":{"rendered":"

                      Correctly performing ESA S929 ram reference\u00a0is an obligatory step after powering on your press brake. Without referencing the ram, you<\/p>","protected":false},"author":32,"featured_media":85343,"comment_status":"open","ping_status":"closed","template":"","meta":{"footnotes":""},"doc_category":[3249],"doc_tag":[3549,5673,5674],"knowledge_base":[3228],"class_list":["post-85332","docs","type-docs","status-publish","has-post-thumbnail","hentry","doc_category-system-operation","doc_tag-advanced-bending-technology","doc_tag-esa-s929","doc_tag-ram-reference","knowledge_base-press-brake"],"year_month":"2026-06","word_count":1021,"total_views":"64","reactions":{"happy":"0","normal":"0","sad":"0"},"author_info":{"name":"Christina","author_nicename":"christina","author_url":"https:\/\/www.harsle.com\/pt\/author\/christina\/"},"doc_category_info":[{"term_name":"System Operation","term_url":"https:\/\/www.harsle.com\/pt\/docs\/hydraulic-press\/system-operation\/"}],"doc_tag_info":[{"term_name":"Advanced Bending Technology","term_url":"https:\/\/www.harsle.com\/pt\/docs-tag\/advanced-bending-technology\/"},{"term_name":"ESA S929","term_url":"https:\/\/www.harsle.com\/pt\/docs-tag\/esa-s929\/"},{"term_name":"ram reference","term_url":"https:\/\/www.harsle.com\/pt\/docs-tag\/ram-reference\/"}],"jetpack_sharing_enabled":true,"knowledge_base_info":[{"term_name":"Press Brake","term_url":"https:\/\/www.harsle.com\/pt\/docs\/press-brake\/","term_slug":"press-brake"}],"knowledge_base_slug":["press-brake"],"_links":{"self":[{"href":"https:\/\/www.harsle.com\/pt\/wp-json\/wp\/v2\/docs\/85332","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.harsle.com\/pt\/wp-json\/wp\/v2\/docs"}],"about":[{"href":"https:\/\/www.harsle.com\/pt\/wp-json\/wp\/v2\/types\/docs"}],"author":[{"embeddable":true,"href":"https:\/\/www.harsle.com\/pt\/wp-json\/wp\/v2\/users\/32"}],"replies":[{"embeddable":true,"href":"https:\/\/www.harsle.com\/pt\/wp-json\/wp\/v2\/comments?post=85332"}],"version-history":[{"count":0,"href":"https:\/\/www.harsle.com\/pt\/wp-json\/wp\/v2\/docs\/85332\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.harsle.com\/pt\/wp-json\/wp\/v2\/media\/85343"}],"wp:attachment":[{"href":"https:\/\/www.harsle.com\/pt\/wp-json\/wp\/v2\/media?parent=85332"}],"wp:term":[{"taxonomy":"doc_category","embeddable":true,"href":"https:\/\/www.harsle.com\/pt\/wp-json\/wp\/v2\/doc_category?post=85332"},{"taxonomy":"doc_tag","embeddable":true,"href":"https:\/\/www.harsle.com\/pt\/wp-json\/wp\/v2\/doc_tag?post=85332"},{"taxonomy":"knowledge_base","embeddable":true,"href":"https:\/\/www.harsle.com\/pt\/wp-json\/wp\/v2\/knowledge_base?post=85332"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}