CONTROL TECHNIQUES UNIDRIVE SP MANUAL PDF

Page System Configurations This system configuration is suitable for systems were the power supply cannot absorb any energy from the load through the drive, hence the reason for blocking diode D1 being fitted in series with the DC supply. Page 18 If the above recommendations are unsuccesfull and the drive still trips OV, then it is likely NOTE that the regen energy is significant enough to require a braking resistor. If this is the case refer to section 4. As shown in Figure Control circuitry for system configuration 2 on page 21 Figure System configuration 2 circuit diagram for Unidrive SP size 1 to 3 Aux.

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Page System Configurations This system configuration is suitable for systems were the power supply cannot absorb any energy from the load through the drive, hence the reason for blocking diode D1 being fitted in series with the DC supply. Page 18 If the above recommendations are unsuccesfull and the drive still trips OV, then it is likely NOTE that the regen energy is significant enough to require a braking resistor.

If this is the case refer to section 4. As shown in Figure Control circuitry for system configuration 2 on page 21 Figure System configuration 2 circuit diagram for Unidrive SP size 1 to 3 Aux.

The soft start resistor only needs to be in circuit at certain times as shown in the flow diagram below. Ensure that no damage or safety hazard could arise from the motor starting unexpectedly.

High temperatures The discharge resistor can reach high temperatures. Locate the resistors so that damage cannot result. Use cable having insulation capable of withstanding high temperatures. Page 36 If the overload factor F is more than 17 times the current setting of the thermal overload NOTE relay, then an in-line fuse would need to be considered.

In this case refer to the thermal overload relay manufacturers recommendations. Page External Soft Start Resistor An alternative to the fuses recommended in Table can be used providing the fuse time vs current characteristic lies between the curves shown in the graphs below and the voltage rating is as per the value shown in Table Page 38 Figure V drive time vs current fuse characteristic specification 0.

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Unidrive SP

We offer standard repair pricing to ensure you the best value for your repair. Our certified technicians use rigorous testing procedures to ensure your parts are restored to fully functioning condition. Our team proudly stands behind all repairs by providing a minimum month warranty. Our technicians have vast experience with most manufacturers and models. Core Exchange If you are interested in getting credit for your faulty SP, just let us know and we can issue you an RMA to send it in as an exchange.

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