User manual HUSQVARNA PG 530

[. . . ] Please read the operator's manual carefully and make sure you understand the instructions before using the machine. Key to symbols 4 Safety Instructions 5 Introduction 6 Transportation 6 Storage 6 What is what 7 Setting up/Operation 9 Changing the diamonds 11 Variable speed drives/ frequency converters 12 Faults and troubleshooting 15 Diamonds 17 Diamond selection 18 Maintenance 22 Maintenance schedule 25 Technical Data 26 The symbols below are used on the machine and in this Operator's Manual. It is important that the user understands the significance of these in order to work with the machine safely. Please read the operator's manual carefully and make sure you understand the instructions before using the machine. [. . . ] The menu tree illustrated on this page outlines the important menu options that provide useful information for monitoring and diagnostic purposes when using the machine. As can be seen on the menu tree to the right, when the machine is turned on, the variable speed drives or frequency converters are set to display the Output Frequency to the motor (a zero value will register when the machine is in stand-by mode). It can also be seen that the Output Frequency page falls under the Monitor Menu. The left hand column, highlights that the two primary menus important to the operator are the Monitor Menu and Fault History menu. Navigation through the menu tree is achieved by using the up, down, left and right keys on the keypad (see previous page). Menus and information they provide The following menu items/screens on the variable speed drive/frequency converters provide the following useful information to the operator. OUTPUT FREQUENCY (Monitor Menu) This screen tells the operator the frequency the motor is running at when the machine is in operation. The value for output frequency should be constant when the machine is running. If there is a fluctuation in output frequency when the machine is running, generally this indicates the motor is running at or near the limit of its programmed current limit. the current limits (predetermined and set by Husqvarna Constructions Products) are as follows: 1. If there is a fluctuation in output frequency when the machine is in operation, it is advisable to check the motor current as well. For trouble free operation concerning current issues, it is best to keep output current at or around 12-13 amps. The current draw of the motor can be reduced by reducing the speed of the motor using the speed dial on the control panel near the handle bars. It will read higher values when the machine is in stand-by and lower values when the machine is in operation. When DC LINK voltage is reduced (in the case of a poor power supply), the variable speed drive/frequency converter will draw more current to compensate. This is why poor power supply will lead to the machine drawing maximum current on a premature basis (for further comments see page 11). FAULT HISTORY The fault history menu stores the last series of faults experienced by the variable speed drive/frequency converter. If there is a recurring fault pattern experienced by the machine, the information can be obtained from the fault history menu. Faults and trouble shooting Faults and trouble shooting When either one of the variable speed drives or frequency converters in the machine experience a fault and "trip" out, they will cease to run and an error message will appear flashing on the keypad display (see picture below). The following list are the most commonly experienced faults and possible action steps. Reduce speed setting and current draw back into acceptable limits as described on previous page. Short circuit on output side of variable speed drives or frequency converters. [. . . ] Grinding Heads Drive System The Husqvarna PG 530 comes equipped with Dual Drive TechnologyTM. As the grinding discs are driven by the large motor via an internal belt, and because the belt is sealed inside the machine, there is no maintenance regarding this drive system until a major service (belt and bearing replacement) is due. Planetary Drive System The second component to the Dual Drive TechnologyTM system is the planetary head drive system which is powered by the secondary or small motor and gearbox arrangement. This system is on the outside of the machine and will require routine maintenance. [. . . ]