Copley Controls Xenus Plus Series User Manual page 90

Xenus Plus User Guide 16-01344 Rev 06
AC Mains Wiring Diagram (Single-Phase) XE2/XP2/XM2/800-1818/800-1819/800-1887
AC Mains Wiring Diagram (Three-Phase) XE2/XP2/XM2/800-1818/800-1819/800-1887
In the end product installation, a UL RC (Recognized Component) SPD (Surge Protective Device) type 1CA, 2CA, 3CA
or a UL Listed (VZCA) SPD type 1, 2, or 3 rated 2500 V, with a minimum SCCR of 5 kA, 240 Vac, and surge voltage
monitoring needs to be provided. The purpose of the SPD is to establish an over-voltage CAT II environment. Example
parts are Cooper Bussman BSPM3240DLG (3 phase) or BSPM2240S3G (two-pole). Alternatively to using a UL R/C
(VZCA) SPD, these devices may be supplied by the secondary of a transformer galvanically isolated from the supply
mains, and designed according to withstand an impulse voltage of 4,000 V.
In order to minimize electrical noise it is important to keep the connection between the drive heatplate and
earth/equipment frame as short as possible. An unplated tab on the drive heatplate is provided for making this
connection. This tab also provides a connection point for a second protective earthing conductor to address the touch
current requirements of IEC 61800-5-1.
The Xenus Plus Dual Axis models use a diode rectifier and DC bus capacitance to convert the incoming AC mains
voltage to DC for powering the output stage inverter. Depending on actual drive load conditions, the total harmonic
distortion (THD) of the current drawn from the AC mains can exceed 10%. Management of current THD must be
considered in the overall system and harmonic filtering may be required. Users should refer to Clause B.4 of IEC 61800-
3:2004+A1:2011 for further details.
In the presence of commutation notch disturbances on the incoming AC mains, the DC bus voltage in the Xenus Plus
Dual Axis models can exceed the overvoltage shutdown level (400V). In the event that commutation notches result in DC
bus voltages above the overvoltage shutdown threshold in the end use system, measures to reduce commutation notch
disturbances may be required.
Copley Controls 90