4-6 Calibration and Start-Up
DC590+ DRV Series DC Digital Drive
4. Press the PROG key to display the drive menu. Go to the DIAGNOSTICS menu (see the following procedure).
Keypad Description
Press Display
DC 4Q 35A
MENU LEVEL
You are monitoring the SPEED DEMAND parameter.
Now navigate to the other diagnostic parameters in this menu, using the
keys, to monitor speed, terminal volts, field volts, etc.
Press
E
to exit.
NOTE The speed feedback will be calibrated later in this start-up procedure.
5. Skip this step if there are no speed feedback devices on the motor. Reconnect the power and start the drive. This verifies that the speed
feedback device is wired and functioning properly.
a. For motors fitted with analog DC tachometer generators, monitor DIAGNOSTICS::TACH INPUT.
• If the reading is about 0.00%, the drive isn’t getting a feedback signal. Stop the drive, disconnect all power supplies and check the
tachometer generator wiring, connections, feedback card, etc.
• If the reading is negative, stop the drive, disconnect all power supplies and reverse the tachometer generator wires.
• If the reading is not near 10.00%, stop the drive, disconnect all power supplies and verify the calibration settings. Calculate the voltage at
maximum speed using the following formula. Remember to convert the voltage rating of the tachometer generator to Volts per RPM; for
example, 50V/1000 RPM = 0.05V per RPM.
Maximum DC Voltage = Volts per RPM × Maximum Desired RPM