Océ ProCut Site Prep
Océ ProCut Site Preparation Guide - Revision: E
9
Ground Fault Requirements
Electrical rules and regulations and vary from country to country and sometimes even within a
country. A local electrician should be consulted to determine local ground fault requirements.
Some countries require residual current devices (RCD) or residual current circuit breakers (RCCB).
This is an electrical wiring device that disconnects a circuit whenever it detects that electrical
current is not balanced between the phase (“hot” or “live”) conductor and the neutral conductor.
In the United States and Canada, a residual current device is also known as a ground fault circuit
interrupter (GFCI), ground fault interrupter (GFI) or an appliance leakage current interrupter (ALCI).
In Australia they are sometimes known as "safety switches".
If a RCD/GFI is required, the standard general-purpose model may not work with the Océ ProCut
system. The vacuum generator and optional milling/router spindle each have a frequency converter
that is used to control their variable speed drive motor. A frequency converter has a higher than
typical leakage current and may trip a standard GFI (E.g in many areas in Europe the standard RFI
has a fusing current of 10 mA). If local regulations require a GFI, it must have a fusing current > 30
mA per converter.
(Compatible GFI model - Hager CDH440C or similar).
In a 200V electrical configuration with the milling/router option there are two connections to power
supply system and if an RFI is required, both connections should have an RFI that has a fusing
current of > 30 mA.
In a 400V electrical configuration with the milling/router option there is a single connection to the
power supply system and if an RFI is required it should have an RFI that has a fusing current of >
60 mA (30 mA for the vacuum generator and 30 mA for the milling spindle and cutter).
Please consult a local electrician to determine ground fault protection requirements.
Router Vacuum Cleaner / Dust Extraction:
If the Router option was ordered, a shop vacuum cleaner is required to remove the router debris.
Depending on the material being worked with, the dust generated may be toxic or potentially
explosive. Seek expert advice about the correct filter system and explosion protection when
choosing a dust extractor. Only use dust extractors with external air-cooling for industrial purposes.
In Europe, a router vacuum cleaner can be purchased from Océ or purchased directly by the
customer from another vendor. In North America the router vacuum cleaner must be purchased
directly by the customer from another vendor. If the customer purchases a shop vacuum
consuming more than 10 Amperes, a separate control via a relay box is required. Note: This is
common for 1KW milling equipment.
Technical Requirements for vacuum cleaner:
Value
Units
Min. Flow volume
3800
1000
L/min
Gal/min
Table 10: Vacuum Cleaner Specifications
