Motor Cable; Load Sharing; Shielding Against Electrical Noise - GE AF-600 FP Operating Instructions Manual

Electrical Installation

3.1.7 Motor Cable

The motor must be connected to terminals U/T1/96, V/
T2/97, W/T3/98. Earth to terminal 99. All types of three-
phase asynchronous standard motors can be used with a
frequency converter unit. The factory setting is for
clockwise rotation with the frequency converter output
connected as follows:
Terminal No. Function
96, 97, 98, 99 Mains U/T1, V/T2, W/T3
Earth
•
Terminal U/T1/96 connected
to U-phase
•
Terminal V/T2/97 connected
to V-phase
•
Terminal W/T3/98
connected to W-phase
The direction of rotation can be changed by switching two
phases in the motor cable or by changing the setting of
H-08 Reverse Lock and reversing.
Unit Size 6X Requirements
Unit Size 61/63 requirements: Motor phase cable quantities
must be multiples of 2, resulting in 2, 4, 6, or 8 (1 cable is
not allowed) to obtain equal amount of wires attached to
both inverter module terminals. The cables are required to
be equal length within 10% between the inverter module
terminals and the first common point of a phase. The
recommended common point is the motor terminals.
Unit Size 62 and 64 requirements: Motor phase cable
quantities must be multiples of 3, resulting in 3, 6, 9, or 12
(1 or 2 cables are not allowed) to obtain equal amount of
wires attached to each inverter module terminal. The wires
are required to be equal length within 10% between the
inverter module terminals and the first common point of a
phase. The recommended common point is the motor
terminals.
Output junction box requirements: The length, minimum
2.5 meters, and quantity of cables must be equal from
each inverter module to the common terminal in the
junction box.
AF-600 FP High Power Operating Instructions

3.1.8 Load Sharing

Terminal No.
88, 89
The connection cable must be screened and the max.
length from the frequency converter to the DC bar is
limited to 25 metres (82 feet).
Load sharing enables linking of the DC intermediate
circuits of several frequency converters.
WARNING
Please note that voltages up to 1099 VDC may occur on
the terminals.
Load Sharing calls for extra equipment and safety consid-
erations. For further information, please contact GE.
WARNING
Please note that mains disconnect may not isolate the
frequency converter due to DC link connection
Please consult GE for ordering.

3.1.9 Shielding against Electrical Noise

Before mounting the mains power cable, mount the EMC
metal cover to ensure best EMC performance.
NOTE: The EMC metal cover is only included in units with
factory installed A1/B1 RFI Filter option..
Illustration 3.12 Mounting of EMC shield.
Function
Loadsharing
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