To Next PageTo Next PageWhy does the Unitec Peco Welding System show 'CURRENT 1 GREATER THAN UPPER LIMIT'?
The 'CURRENT 1 GREATER THAN UPPER LIMIT' alarm message on your Unitec Peco Welding System indicates that the actual weld current exceeds the user-defined Upper Limit value for Weld1. To resolve this, reset the Upper Limit for Weld1 to a higher value.
What to do if the Unitec Peco Welding System shows 'ACCESS DENIED! SYSTEM SECURITY ON'?
If your Unitec Peco Welding System displays the 'ACCESS DENIED! SYSTEM SECURITY ON' message, it means the operator attempted to modify a weld schedule number, individual weld schedule parameters, I/O switch functions, or calibration parameters. To resolve this, press MENU, select System Security, and enter the correct access code to disable the System or Calibration Lock protection features. A security code of 280 will always unlock the system.
What to do if the Unitec Peco Welding System displays 'ACCESS DENIED! SCHEDULE LOCK ON'?
If the Unitec Peco Welding System displays the alarm message 'ACCESS DENIED! SCHEDULE LOCK ON', it means an operator has tried to change a weld schedule or individual weld parameters. To fix this, press MENU, select System Security, and then enter your access code to turn off System Security. Entering security code 280 will unlock the system.
What does it mean if the Unitec Peco Welding System shows 'CHECK CONTROL SIGNALS INPUT STATUS'?
The alarm message 'CHECK CONTROL SIGNALS INPUT STATUS' on your Unitec Peco Welding System means that one or more of the I/O input control signals is preventing the HF25/26 from continuing to operate. To solve this, remove the I/O input control signal condition that is preventing further operation. Note that the correct removal action depends on how the control signal select in the Setup 1 menu was programmed by the user.
What does 'CHECK INPUT SWITCH STATUS' mean on my Unitec Peco Welding System?
The alarm message 'CHECK INPUT SWITCH STATUS' on the Unitec Peco Welding System indicates that one or more of the Firing or Foot Switch input signals is preventing the HF25/26 from continuing to operate. To resolve this, remove the I/O input control signal condition that is preventing further operation. The correct removal action depends on how the INPUT SWITCH SELECT in the Setup 1 menu was programmed by the user.
Why does the Unitec Peco Welding System show 'CHECK VOLTAGE CABLE'?
The 'CHECK VOLTAGE CABLE' alarm on your Unitec Peco Welding System indicates that no electrode voltage measurement was made. Verify that the Voltage Sense Cable is properly connected to the electrodes or electrode holder. Note that polarity is not important for the cable connection.
What does it mean when the Unitec Peco Welding System displays 'CALIBRATION RESET TO DEFAULT'?
The 'CALIBRATION RESET TO DEFAULT' alarm message on your Unitec Peco Welding System means that the calibration values have been reset to factory default values. To correct this, execute the built-in calibration procedure to get the correct setting.
Why is there metal expulsion during welding with my Unitec Peco Welding System?
Metal expulsion during welding with the Unitec Peco Welding System can occur due to several reasons: * Excessive current/energy set at HF25 * Insufficient weld head force * Slow weld head follow-up * Incompatible weld piece projection design * Contaminated weld piece surface/plating * Incompatible weld piece materials * Contaminated electrode surface * Wrong electrode tip shape * No cover gas on weld piece * Excessive weld time set at HF25
What causes electrode damage in the Unitec Peco Welding System?
Electrode damage in the Unitec Peco Welding System can be caused by: * Excessive current/energy set at HF25 * Excessive or insufficient weld head force * Wrong electrode tip shape * Excessive weld time set at HF25 * Contaminated weld piece surface/ plating * Wrong electrode material * Contaminated electrode surface
Why is the weld piece warping when using the Unitec Peco Welding System?
Weld piece warping with the Unitec Peco Welding System can result from: * Excessive weld time set at HF25 * Excessive weld head force * Incompatible weld piece projection design * Incompatible weld piece materials * Wrong electrode tip shape * Excessive current/energy set at HF25
Overview of core capabilities and benefits of the HF25A/HF25D system.
Details the main physical components of the HF25D system, including front and rear panels.
Outlines essential considerations and requirements before installing the HF25D system.
Explains how to navigate the HF25D's menu system to access various functions.
Describes the different operational modes the HF25D system can be in during use.
Details the various weld functions and application types supported by the HF25D.
Guides on utilizing weld schedules, feedback, and monitoring features of the HF25D.
Explains the different feedback modes (current, voltage, power) for weld control.
Covers the functions for monitoring weld parameters and setting limits.
Provides pre-operation checks and initial setup instructions for the HF25D system.
Step-by-step guide on how to program weld schedules for the HF25D system.
Introduces common problems and alarm messages related to HF25D maintenance.
Provides a guide to identifying and resolving common issues with the HF25D system.
Covers routine maintenance procedures like electrode care and parts replacement.
Explains how to contact the service department for unresolved control problems.
Explains the process and equipment required for calibrating the HF25D system.
Details the input and output power specifications for the HF25D system.
Lists the key performance specifications and capabilities of the HF25D system.
Describes the necessary electrical connections for powering the HF25D system.
Explains the general organization and usage of the I/O signal interface.
Details the function and connection of the emergency stop switch for the HF25D.
Illustrates the timing sequence for basic weld operations with an air head system.
Illustrates the timing sequence for manual weld operations with a firing switch.
Provides an overview of the Linear Variable Differential Transformer (LVDT) option.
Details the procedure for calibrating the LVDT option for accurate measurements.
Introduces the communication capabilities of the HF25D with host or automation systems.
Details the pin assignment and host settings for RS-232 serial communication.
Lists commands sent from a host computer to control the HF25D system.
Explains the fundamental parameters that influence resistance welding heat generation.
Provides guidance on selecting appropriate electrode materials for different applications.
Covers the procedures for maintaining electrodes, including cleaning and resurfacing.
Outlines the methodical process for developing effective weld schedules.
Outlines the methodology for achieving quality resistance welding solutions.
Discusses material properties and their impact on resistance welding outcomes.
Explains the purpose and application of Screening Design of Experiments (DOE).
General| Brand | Unitec Peco |
|---|---|
| Model | HF25A |
| Category | Welding System |
| Language | English |
