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Directions for Use of Electrical Equipment
Please observe the following rules:
- Do not put into operation any devices with a visibly damaged mains cable, motor cable or switch.
- Before conducting maintenance work, adjustments, or repairs, switch off the switch and withdraw the mains plug. Wait for moving parts (e.g. saw blades, plane irons, or drill chucks) to come to a standstill.
- After switching off SPCs (switch plug combinations) with an electronic brake,
the motor is still in circuit.
- Check the mains supply before connecting. Wrong connections may destroy the electrical equipment.
- Observe the line voltage. Make sure the line voltage matches the voltage information on the type plate.
- Connect electrical equipment only to a mains supply that is sufficiently protected against overcurrent.
- Withdraw the mains switch when leaving the machine without supervision for extended work breaks or when shutting down the machine (main switch functionality).
- Only qualified technical personnel may connect the SPC to the motor.
- The electronic brake does not work in the event of a voltage failure. In this case, supervise the machine until it comes to a complete standstill. Do not reach into the danger area.
- In circuits with electronic brakes, even at rest the motor is not isolated from the mains
supply. - Avoid short switching cycles. Frequent starting and braking causes significant thermal stress and may damage the motor, the switching device and the electronic brake.
- When connecting a switch with an electronic brake, test the braking current during the initial switching cycles. Make sure the permissible maximum values are not exceeded.
- Switches with electronic brakes must not be connected to:
- Electric generators and emergency power generating sets
- Electronic mains converters
- Static frequency converters
- Line voltages with deviation from sinusoidal shape
- The device is designed for operation in an electricity supply network with a service connection impedance of less than 0.39 ohm. The user must ensure that the device will only be operated in a network meeting this requirement. Information on the network impedance can be obtained from the local power supply utility.
No liability will be accepted for any damage caused by failure to observe the above rules.
Abbreviations and symbols
- SPC = switch plug combination
- Failure to observe this warning may cause personal injury or damage to the machine or to other
property
| Malfunction | Possible cause | Remedial measures |
|---|---|---|
| Motor does not start after pressing the ON button |
Wrong connection | Check connection. |
| No line voltage available | Check line voltage. | |
| Emergency stop button pressed | Reset emergency stop button. | |
| End position switch (if any) tripped | Close protective hood. | |
| Overload protection tripped | Allow motor sufficient time to cool down and restart. | |
| Cam switch (if any) in position 0 | Check switch position. | |
| Phase sequence monitoring (if any) tripped | Check phase sequence of mains connection. | |
| Motor starts with wrong direction of rotation after pressing the ON button | Incorrect phase sequence of mains connection | Use phase inverter (if any) to invert the phases. |
| Motor connection is not correct | Check motor connection. | |
| Motor makes a humming noise and does not reach nominal speed after pressing the ON button | One phase of the mains line is missing | Check mains supply. |
| Wiring of motor is not correct | Check motor connection. | |
| Mains fuse trips when the device is connected to the mains line | Wrong connection (phase and neutral swapped) | Check connection. For safety reasons send in switch for testing. |
| Defective power semiconductor (switches with electronic brake) | For safety reasons send in switch to be tested and repaired. | |
| Defective mains line | Check mains line. | |
| Device suddenly switches off during operation | Overload protection tripped | Allow motor sufficient time to cool down and restart. |
| Mains failure | Check mains voltage. Check mains fuse. | |
| Protective hood (if any) has come loose | Check | |
| Limit switch, position switch, or emergency stop button were operated | Check and reset if necessary. | |
| Mechanical parts of the machine are tight or sluggish | Service tight or sluggish parts. | |
| After switching off, the motor makes a humming noise for 10 - 15 seconds | When switching off the machine, the electronic brake is activated for 10 to 15 seconds and is then switched off | Normal state during operation. (The humming noise is caused by the electronic brake.) |
| Electronic brake does not switch off (humming noise does not stop) | Failure of a component of the electronic brake | Withdraw mains plug to avoid overheating of the motor. Send in switch for repair. |
| After switching off, the moving part is stopped too quickly or only after more than 10 seconds | Settings for the electronic brake are not ideal | Adjust jumper or potentiometer of the electronic brake for best braking effect and braking time. |
| Do not exceed maximum braking current. | ||
| Withdraw the mains plug before working on the switch. | ||
| Only qualified personnel may work on the switch. | ||
| No braking function | See above | |
| Failure of electronic brake | Send in switch for repair. | |
| Other malfunctions | Contact our service department or send in the defective switch (with cable, without motor) and a short fault description. | |
Warranty:
- 12 months after date of shipment (calendar week and year are stated on the type plate).
- Damage caused by overload, normal wear and tear, incorrect wiring, or incorrect treatment is not covered by warranty.
- Any warranty is voided if the power class of the switch is not suitable for the application.
- Warranty claims are only accepted it the complete device is sent in.
- Warranty claims beyond the switch are not accepted.