RFI Grounding
The
i220 Press
provides the operating power and power
returns. Make sure the press is grounded properly.
In addition to the safety considerations, proper grounding
is essential for the effective suppression of RFI (Radio
Frequency Interference). Every press contains a RFI filter
which blocks noise on the AC power line from entering the
control circuitry. This filter also prevents ultrasonic RFI
from being fed back into the AC power line.
If you experience problems with RFI from the press, run
an additional grounding wire from the press base ground-
ing stud to the nearest grounded metal pipe or equivalent
earth ground by means of a ground clamp. Use at least 14
AWG wire for the connection to the press base.
CAUTION
To minimize electrical noise
and eliminate ground cur-
rents, ground the chassis
as shown. Use a STAR con-
figuration (illustrated below).
Do not DAISY CHAIN the
grounds.
Earth
Ground
#14 Gauge
Stranded or
Solid Wire
Fixed Probe Mount
or 2nd Chassis
Grounding Stud
3rd Chassis
Grounding
Stud
Chassis Grounding
Stud
Recommended
protective
earth ground connection
wire
color
: green or green
with yellow stripe.
Page 26
iQ Series
Ultrasonic Integrated Press System i 220 User’s Manual
Dukane Manual Part No. 403-594-02
