ABB ACS 502 Series, Installation & Start-Up Manual

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Chapter 5 – Start-up Procedure
ACS 502 Installation & Start-up Manual 5-5
5. Press [ * ] to enter setting mode. Press [Up Arrow] until the frequency
display shows 60 Hz, then press [ * ] to enter the value.
6. Press [Up Arrow] or [Down Arrow] to scroll through and check the
Operating Data parameters. Check that Operating Data Parameter 7
(Output Voltage) is equal to the input voltage. Verify that Operating Data
Parameter B (Motor Current) is less than 3% of the drive rated current
(I
R
).
If the drive operates according to these steps, disconnect and lock out power
to the ACS 502 to prepare for the next test.
WARNING! Wait at least five minutes after disconnecting power from the
drive before you attempt to service the drive. Bus capacitors in the
intermediate DC circuit must discharge before servicing the drive. Check for
zero volts at Terminals TB1:21 – 29, UDC+, and UDC-. Your measuring
meter must be rated for 1000 VDC. Failure to check voltages may result in
death or serious injury.
If the drive does not operate according to these steps, refer to Chapter 6 –
Fault Tracing in this manual for additional information.
Motor Connected
to the ACS 502
After successfully testing the drive with the motor disconnected, continue
testing the drive as follows:
1. Disconnect and lock out power from the ACS 502. Check for zero volts
at Terminals X50:21 – 29 and X2:(+) and (-) before continuing.
If a Bypass option is supplied, set the Drive Switch to NORMAL and the
Bypass Switch to NORMAL.
2. Connect the motor to the ACS 502.
3. Power up the ACS 502.
4. Set Operating Data Parameter 10 (Keypad Ref 1) to 0.5 Hz.
CAUTION: Check motor rotation direction as soon as the motor begins to
move. If motor rotation direction is critical and the motor does not run in the
direction indicated by the Rotation Direction indicator on the ACS 502 LCD
Display:
•
Shut down the drive.
• Disconnect and lock out power to the drive.
• Wait five minutes.
• Check for zero volts at Terminals UDC+ and UDC-.
When the drive has reached zero volts, swap any two motor output wires at
the Output Terminals. Incorrect motor rotation direction may cause equipment
damage.
5. Press [Start/Stop] to issue a start command. The Run Status indicator on
the LCD Display displays the Start ( I ) symbol.