HP Scitex LX850 HP Scitex LX850 & LX820 Printers: Site Preparation Guide - - Page 13

Powerline disturbances, systems, should be kept separate from the power source used for your printer.

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Site preparation Table 2-6 Cable specifications Three-phase line Configuration 4 wires, L1/L2/L3/PE Wire Strained Cu, AWG6, 13 mm² Maximum external diameter 30 mm (1.18 in) Single-phase line 3 wires, L/N/PE Strained Cu, AWG12, 4 mm² - PE connections should be made through an M6 stub. The power cable can be routed from above the right of the top cover; it can be routed from the ceiling. Powerline disturbances Reliable operation of your printer depends on the availability of relatively noise-free AC power. ● In order to ensure optimum performance and reliability, your printer should be protected from variations in line voltage, which are common to production printing environments. Lighting, line faults, or the power switching commonly found in machinery in factory environments can generate line transients that far exceed the peak value of the applied voltage. If not reduced, these microsecond pulses can disrupt system operation. ● If the power line supplying the installation site is a public low voltage line shared with other users, the power line impedance at 50 Hz must be less than 34 mΩ, to comply with European regulations. If other users on the same power line report any flickering of incandescent light bulbs, contact your electricity supplier to verify that the power network has an impedance lower than the one specified above. ● It is recommended to include overvoltage (OVP) and transient protection on the power supply to the printer. ● All electrical noise generating equipment, like fans, fluorescent lighting, and air-conditioning systems, should be kept separate from the power source used for your printer. ● The heating and curing lamps are powered by the three-phase AC lines. For optimal printer operation, the three-phase system must have a maximum variation equal to or lower than 3% voltage unbalance, and 5% voltage sag. If the maximum variation is not within this range, print quality and printer operation may be affected. Contact your electricity supplier to remedy any voltage unbalance or sag. To avoid certain specific system errors in some cases, such as 15.8:10 or 16.8:10, you are recommended to have no more than 10 V variation in the three-phase line (line to line). ENWW System operation requirements 9

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Table 2-6
Cable specifications
Three-phase line
Single-phase line
Configuration
4 wires, L1/L2/L3/PE
3 wires, L/N/PE
Wire
Strained Cu, AWG6, 13 mm²
Strained Cu, AWG12, 4 mm²
Maximum external diameter
30 mm (1.18 in)
–
PE connections should be made through an M6 stub.
The power cable can be routed from above the right of the top cover; it can be routed from the ceiling.
Powerline disturbances
Reliable operation of your printer depends on the availability of relatively noise-free AC power.
●
In order to ensure optimum performance and reliability, your printer should be protected from
variations in line voltage, which are common to production printing environments. Lighting, line
faults, or the power switching commonly found in machinery in factory environments can generate
line transients that far exceed the peak value of the applied voltage. If not reduced, these micro-
second pulses can disrupt system operation.
●
If the power line supplying the installation site is a public low voltage line shared with other users,
the power line impedance at 50 Hz must be less than 34 m
Ω
, to comply with European
regulations. If other users on the same power line report any flickering of incandescent light bulbs,
contact your electricity supplier to verify that the power network has an impedance lower than the
one specified above.
●
It is recommended to include overvoltage (OVP) and transient protection on the power supply to
the printer.
●
All electrical noise generating equipment, like fans, fluorescent lighting, and air-conditioning
systems, should be kept separate from the power source used for your printer.
●
The heating and curing lamps are powered by the three-phase AC lines. For optimal printer
operation, the three-phase system must have a maximum variation equal to or lower than 3%
voltage unbalance, and 5% voltage sag. If the maximum variation is not within this range, print
quality and printer operation may be affected. Contact your electricity supplier to remedy any
voltage unbalance or sag.
To avoid certain specific system errors in some cases, such as 15.8:10 or 16.8:10, you are
recommended to have no more than 10 V variation in the three-phase line (line to line).
ENWW
System operation requirements
9
Site preparation