HP Anab EQ5 - Manual (Page 14)

EQ5 AC Drive Operations Manual
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TECO – Westinghouse Motor Company Electrical Connections 8
2-3 Electrical Connections
To access the terminal blocks remove the cover in accordance with the instructions in this manual.
2-3-1 Basic Power Electrical Connections
1. Always connect input power to the main circuit power terminals L1/R, L2/S, and L3/T
of the inverter. Check that the input voltage to be applied is within the maximum allowable
voltage marked on the nameplate.
2. Always connect the power output terminals U, V, and W to the motor. Check that output
voltage rating is correct for the motor being used.
DANGER- Do not connect the input voltage to the motor terminals U, V, and W as
extreme damage and / or injury may result.
3. Using the proper wire size and type, always bond the ground terminal to a reliable ground
connection to prevent dangerous situations such as the possibility of fire or electrical shock
and to minimize electrical noise.
4. Use a secure reliable cable crimp connection between the terminal and a cable.
5. After terminating the wiring connection, ensure the following:
a. The connection is correct.
b. All necessary connections have been made.
c. There is no short-circuit or ground fault between terminals and cables.
6. If a wiring change needs to be made after power-up, wait at least 5 minutes before making
any wiring changes. Also ensure that the charge indicating LED is off. This is necessary
because the DC power section capacitor(s) does not discharge immediately after power-down
and maintains lethal voltages. The actual DC voltage may also be checked with a multimeter
and should be 25VDC or less. If short circuiting the DC voltage after power-down, sparks
may occur.
DANGER
• Always properly ground the inverter otherwise electric shock or fire
may result.
• Ensure that a licensed specialist performs all wiring and that all codes
are met.
•
Confirm that the power is turned off and that the charge indicator is off
(Wait 5 minutes for 30HP/CT, 40HP/VT and less, 10 minutes for
40HP/CT, 50HP/VT or above) before removing any protective covers as
lethal voltages are present and electrical shock may result.
NOTES