Danfoss VLT Ea4, Руководство по эксплуатации

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W A R N I N G
LEAKAGE CURRENT HAZARD
Leakage currents exceed 3.5 mA. Failure to ground the drive properly can result in death or serious injury.
Ensure the correct grounding of the equipment by a certified electrical installer.
N O T I C E
POTENTIAL EQUALIZATION
There is a risk of burst transient when the ground potential between the drive and the control system is different.
Install equalizing cables between the system components. Recommended cable cross-section: 16 mm
2
(5 AWG).
Ground the drive in accordance with applicable standards and directives.
Use a dedicated ground wire for input power, motor power, and control wiring.
Do not ground 1 drive to another in a daisy chain fashion.
Keep the ground wire connections as short as possible.
Follow motor manufacturer wiring requirements.
Minimum cable cross-section: 10 mm
2
(6 AWG) (or 2 rated ground wires terminated separately).
Tighten the terminals. See 4.1 Fastener Torque Ratings .
5.7 Installing DC Bus Fuses
DC fuses are provided in the basic kit. Install the DC fuses at the available DC terminals at individual drive modules. Each DC fuse has
a fixture for mounting the microswitches, which are used to detect a fuse failure.
Procedure
Install the supplied harness between the microswitch terminals and the brake fault jumper port on the top of the drive
modules.
Connect the wire harness between the NC and COM terminals.
If successfully installed, the drive powers up when ready for operation. If the DC bus fuse is installed or wired incorrectly, the drive
does not power up and the Brake IGBT fault displays.
5.8 Connecting to the Motor
Comply with local and national electrical codes for cable sizes. See 7.1 Electrical Data, 380–500 V AC .
Follow motor manufacturer wiring requirements.
Do not wire a starting or pole-changing device (for example, Dahlander motor or slip ring induction motor) between the drive
and the motor.
N O T I C E
DRIVE MODULE WIRING
Install an equal number of wires to each set of drive modules.
N O T I C E
MULTIPLE MOTOR CABLES
If connecting more than 1 set of motor terminals, use the same number, size, and length of cables for each set of terminals. For
example, do not use 1 cable on one motor terminal and 2 cables on another motor terminal.
Procedure
Strip a section of the outer cable insulation.
Establish mechanical fixation and electrical contact between the cable shield and ground by positioning the stripped wire
under the cable clamp.
AQ434333248451en-000101 / 130R1286 | 27 Danfoss A/S © 2023.01
Electrical Installation
VLT Ea4 Parallel Drive Modules
Operating Guide