Establishing Noise Zones - Allen-Bradley Ultra1500 2092-DA1 User Manual

1-14 Installing Your Ultra1500
Publication 2092-UM001D-EN-P — July 2005

Establishing Noise Zones

Observe the following guidelines when laying out your panel (refer to Figure
1.5 for zone locations).
•
The clean zone (C) is above and beneath the Ultra1500 and includes CN1,
CN2, and CN3 signals, and the DC filter (grey wireways).
•
The dirty zone (D) is left of the Ultra1500 (black wireways) and includes
the circuit breakers, transformer, AC line filter, contactors, 24V dc power
supply, and motor (output) power cables.
•
The very dirty zone (VD) is limited to where the AC line (EMC) filter AC
output jumpers over to the Ultra1500. Shielded cable is required only if
the very dirty cables enter a wireway.
Figure 1.5
Establishing Noise Zones
Dirty Wireway
(1)
D
Circuit
Breaker 24V
Power Supply
XFMR
3
24V dc
Very dirty EMC filter connections
D
Route Motor Power
Shielded Cable
1 If I/O cable contains (dirty) relay wires, route cable with motor (output) power wires in dirty wireway.
2 This is a clean 24V dc available for CN1 I/O power supply. The 24V enters the clean wireway and exits to the right.
3 This is a dirty 24V dc available for motor brakes and contactors. The 24V enters the dirty wireway and exits to the
left.
C
D
2
24V dc
Mount AC line
filter as close
DC
to the drive as
Filter
possible
Contactors
AC
Line Filter
D
VD
segregated (not in wireway)
D
Motor Power Cables
Route Encoder/Analog/Registration
Clean Wireway
Ultra1500
CN1
CN3 CN2
C
1
I/O Cable
Shielded Cable