ABB ACS255 User Manual

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ABB ACS255 User Manual Manual pdf 26 page image

268. Quick Start-up and Control8.1. Quick Start-up Terminal ControlWhen delivered, the drive is in the factory default state, meaning that it is set to operate in terminal control mode (Parameter 9902DIGITAL INPUTS FUNCTION SELECT = 0 and 1103 PRIMARY COMMAND SOURCE MODE = 0) and all parameters have the default values asindicated in section 10.1. Perform Mechanical and Electrical installation as per section 4 and 5.2. Connect a control switch between the control terminals 1 and 2 ensuring that the contact is open (drive disabled).3. Connect a potentiometer (1kΩ min to 10 kΩ max) between terminals 5 and 7, and the wiper to terminal 6.4. With the potentiometer set to zero, switch on the supply to the drive. The display will show .5. Press and hold the navigate key for >1s to enter parameter view mode and enter motor data from motor nameplate into parameter9905 MOTOR RATED VOLTAGE, 9906 MOTOR RATED CURRENT, and parameter 9907 MOTOR RATED FREQUENCY. Enter the ratedRPM (nameplate) of the motor in 9908 MOTOR RATED SPEED to allow the display of the estimated motor speed.6. Close the control switch, terminals 1-2. The drive is now ‘enabled’ and the output frequency/speed are controlled by thepotentiometer. The display shows zero speed in Hz (.) with the potentiometer turned to minimum. If the display is notshowing Hz, change it using the (Navigate) key.7. Turn the potentiometer to maximum. The motor will accelerate to 60Hz (the default value of parameter 2008 MAXIMUMFREQUENCY / SPEED LIMIT) under the control of the accelerating ramp time parameter 2202 ACCELERATION RAMP TIME. Thedisplay shows 60Hz (.) at max speed.8. To display motor current (A), briefly press the (Navigate) key.9. To display estimated motor speed (RPM), briefly press the (Navigate) key a second time.(Motor nameplate speed (RPM) must be entered in 9908 Motor Rated Speed to display the estimated RPM).10. To display power (Hp) briefly press the (Navigate) key a third time.11. Press again to return to speed (Hz) display.To stop the motor, either turn the potentiometer back to zero or disable the drive by opening the control switch (terminals 1-2).If the enable/disable switch is opened the drive will decelerate to stop at which time the display will show . If the potentiometer isturned to zero with the enable/disable closed the display will show .(0.0Hz), if left like this for 60 seconds the drive will go intostandby mode, display shows , waiting for a speed reference signal.