SFU 0302 SSE
30Pages

5 Safety Precautions and Warnings 6 Connections, Interfaces and Pinout 6.1 Digital and Analogue Inputs and Outputs 6.2 Spindle Control Interface 6.3 Spindle connection at screw terminals 7 Functions, Commissioning, Operation 7.3 Configuration via the Front Keys 7.5 Starting and Stopping the Frequency Converter 7.6 Remote Controlled Configuration of Direction of Rotation 7.7 Safety Stop Functions 9 Calibration and Configuration using Windows Software 12 EMC (Electro-Magnetic Compatibility) 13 Mechanics, Views + Dimensions

1. Introduction Depending on its construction, the speed of a three-phase a.c. motor is directly dependent on the number of poles and the frequency of the network. In a 3ph 380V/50Hz network, with a 2-pole motor, the rated speed would be 50 U/s * 60 = 3000 Upm. With d.c. motors (brushless d.c.), the speed is dependent on the voltage applied. Three-phase a.c. motors provide numerous benefits in industry, such as brushless operation, freedom from wear and tear, favourable capacity/weight ratio, high-speed capability, and much more. These motors can be used many different application areas,...

2. Description and Features • Operation of a.c. and d.c. motors/spindles • The frequency converter SFU-0302 allows speed frequencies up to 180,000Upm with 2-pole a.c. motors and 60,000Upm with d.c. motors. • High output power ( 3,6kVA@230V / 2kVA@115V ) from a compact design • The Kernel of the SFU-0302 is a Digital Signal Processor (DSP), which generates all output variables and captures signals. • All parameters, such as current, voltage and frequency, are captured in real time, and adjusted by implementing via the Vector Control according to loading. • Highly-accurate sinusoidal output...

CAUTION: To avoid severe motor / spindle damage, select correct motor / spindle characteristic !

5. Safety-Precautions and Warnings • This device produces dangerous electrical voltages and is used for the operation of dangerous moving mechanical parts. For this reason, only professionally trained and qualified personnel should be allowed to install and repair this device! • Before first activation of the device, verify, if it id in a faultless condition. If it was damaged during shipping and transportation it must not be switched on. • During installation the safety regulations have to be observed. • Before the device is turned on for the first time, it should be verified, that the...

Operational parameters and outputs: The SFU-0302 covers all current important operational parameters and operating data. Up to 6 digital outputs can be used for signalling and up to 2 analogue values can be output to the analogue outputs (0-10V) . Remote Control and Outputs: 6 digital inputs (24 V) and 2 analogue inputs (0-10V) are available for remote control of the SFU-0302. These assignments can be freely configured. Using the optional Windows PC software "SFU-Terminal" the above assignments can be easily achieved, providing exceptional flexibility with each application. Each operating...

6.1 Digital and Analog I/Os (D-Sub 25pin fem.) Pin • The digital outputs (relays 1...6) are galvanically separated contacts (500VIsolation). D.C.: 24V / 1000mA A.C.: 125V / 500mA • Digital input switching level: "0" 0...7V "1" 18...24V • The digital inputs require a high level of 24 V for correct function (PLC standard level). • Hall sensor output level: 0-24V (24V level.) • Analogue input voltage range: 0...10V • The +24V output can be used as a power supply for this type of electronic spindle interface.

• The spindle interface is completely isolated by optocouplers. It can be used for automatic spindle detection, if enabled.. To set a high level to one bit, a simple connection to the spindle GND is made. An open contact equals low level. The direction of high/low active can be changed in the form ‘digital inputs’. • The PTC input detects over-temperature of the spindle. A high resistor value at this pin of >600 Ohms causes the switching of digital output overtemp spindle and safety cut-out following the programmed delay . • The Hall sensor input operates from input signal levels of +/- 1V...

use a standard zero-modem-cable for connection to PC

7. Functions, Commissioning, Operation 3 operational possibilities: • Control and configuration manually via front keys • Automatic control and configuration via PLC / IPC • Automatic control and configuration via PC (RS232 interface) The front keys allow access to following functions: • Start / Stop manually • RPM-control via UP / DOWN keys • Spindle characteristic selection

7.2 LCD-Display All system data and parameter such as RPM, load or errors will be displayed on the LCD-display. The actual load output is displayed by bargraph and absolute in % in the bottom line of the display. The pre-selected duty RPM and spindle characteristic and the actual RPM of the spindle is displayed converter is running spindle characteristic 3 converter is in Stop State > spindle standstill converter is accelerating power output 67% converter is accelerating power output 34% spindle is rotating at duty RPM power output 20% Errors are displayed in the top line by text. Overload...

To avoid severe motor / spindle damage, select correct motor / spindle characteristic ! Where several spindles are in use within one system, the user must ensure use of the correct spindle characteristic number to prevent spindle damage ( different spindle types may have different line voltages !) The LCD shows all relevant system messages for speed, load or errors. In the event of an error, the error type is displayed in plain text. 7.4 RPM configuration (all references to menues relate to setup software SFU-Terminal) The preset of revolutions per minute of the spindle can be achieved by...

7.5 Starting and Stopping the Frequency Converter (all references to menues relate to setup software SFU-Terminal) There are different methods of starting and stopping SFU-0302 frequency converters, due to many different requirements, as follows below: • manually via panel keys • Remote control via digital input • Remote control via analogue input • Remote control via serial interface Before starting the converter is possible, a preset of the RPM (> 7.4) has to be done. This is necessary for all options of starting with the exception of analogue starting. Manually via panel keys _...