Eurotherm Drives 590 DRV Digital, Product Manual, Page: 47 / 318

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Chapter 4 Start-up and Adjustment
590 DRV Digital drive Product Manual
WARNING!
Disconnect or isolate motor connections from the controller before performing a megger
insulation, or high voltage tests on the motor windings.
4. Make sure all settings on the 590 DRV Digital drive calibration card are set to the correct values for
your motor dataplate information (see the calibration card information in Chapter 3). Standard 590 DRV
Digital drives up through 400 HP come equipped with a switch selectable calibration card; higher
horsepower models require the resistor-adjustable calibration card.
CHECK SUPPLY
WARNING!
Measure and verify the power supply to the drive before applying power to the input of the drive.
1. Measure each leg of the three-phase power supply to ensure they are within ±10% of motor supply
requirements. The controller has multiple ratings. Check whether the supply is suitable to attain the
maximum desired armature voltage. Generally, the maximum armature voltage for a three phase DC
drive is 110% of the AC supply voltage. A 240 VDC armature motor requires a 230 VAC supply; 500
VDC motor needs a 480 VAC supply. Consult the factory for other ratings.
2. If a frequency meter is available, measure the incoming line frequency. The frequency should not vary
more beyond the acceptable range of 40 to 70 Hz.
3. Verify that the control transformer inside the 590 DRV Digital drive is tapped for the supply voltage.
4. Connect power but do not start the drive. The drive should now receive control power and the MMI
display should read 590 DC DRIVE:: MENU LEVEL. Check the motor field voltage with a voltmeter
once power is on. If the drive is supplying voltage to the motor field, the field should not receive power
until the drive is started.
5. Check that the six diagnostic LED's show a normal stop condition (that is, the RUN and START LEDs
are off with the other four LEDs illuminated) and that the motor is free to rotate. The PROGRAM and
COAST STOP inputs (terminals B8 and B9) should be TRUE.
Voltage & Current
Calibration
Check Supply
Against Motor
Armature
Apply Power but
do not Start Drive
Check LEDs
Check Control
Transformer
Check Frequency
Measure AC
Supply
▼
Field Voltage
Should be Zero
INITIAL DRIVE START
WARNING!
Before starting the drive for the first time, make sure that your motor is uncoupled from the load, or
ensure that the motor load can move without causing mechanical damage or danger to personnel.
1. Give a 0% speed demand to the drive. Check all drive speed reference inputs in the MMI under
DIAGNOSTICS:: SETPOINT SUM OUTPUT and SPEED SETPOINT. Ensure that the total speed
setpoint to the drive is zero.
2. Set SETUP PARAMETERS:: CURRENT LOOP:: CURRENT LIMIT to 0.00%.
2. Ensure the PROGRAM STOP and COAST STOP LEDs are on (+24 VDC at terminals B8 and B9).
3. Set SETUP PARAMETERS:: CURRENT LOOP:: CURRENT LIMIT to 0.00%.
4. Start the drive by energizing terminal C3 (START/RUN). If the drive is wired to supply power to the
motor field, measure the field voltage with a DC voltmeter and verify that it matches the motor name-
plate rating. Measure the motor field current if a Hall effect current meter is available. If the motor
field voltage or current is incorrect, follow the steps below to tune in the correct field supply.
Verify 0% Speed
Demand
Verify 0% Current
Limit
Check Program &
Coast Stops
▼
Start Drive
Measure Field
Voltage
Measure Field
Current