Rockwell Automation 1204 Reflected Wave Reduc Device RWR2 User Manual
Page 4

4
1204 Reflected Wave Reduction Device
Determining the Maximum Cable
Length for your System
The following tables will help you determine the maximum cable length
for your system.
Important:
The values shown in the following tables are for nominal
input voltage. If you are running at high line conditions
(nominal line voltage plus 10%), multiply the listed values
by 0.85.
Table A
1305 Maximum Motor Cable Length Restriction in meters (feet) – 380-460V Drives
Drive
Carrier
Frequency
Drive kW
(HP)
Motor kW
(HP)
w/1204-RWR2 and Motor w/Insulation of V
P-P
1000 Volt
1200 or 1600 Volt
Cable Type
Cable Type
Shielded
Unshielded
Shielded
Unshielded
2 kHz
4.0 (5)
4.0 (5)
182.9 (600) 152.4 (500) 182.9 (600) 182.9 (600)
2.2 (3)
182.9 (600) 152.4 (500) 182.9 (600) 182.9 (600)
1.5 (2)
182.9 (600) 152.4 (500) 182.9 (600) 182.9 (600)
2.2 (3)
2.2 (3)
152.4 (500) 152.4 (500) 152.4 (500) 182.9 (600)
1.5 (2)
152.4 (500) 152.4 (500) 152.4 (500) 182.9 (600)
0.75 (1)
152.4 (500) 152.4 (500) 152.4 (500) 182.9 (600)
1.5 (2)
1.5 (2)
121.9 (400) 167.6 (550) 121.9 (400) 167.6 (550)
0.75 (1)
137.2 (450) 152.4 (500) 137.2 (450) 182.9 (600)
0.55 (0.75) 137.2 (450) 152.4 (500) 137.2 (450) 182.9 (600)
0.37 (0.5)
137.2 (450) 152.4 (500) 137.2 (450) 182.9 (600)
0.75 (1)
0.75 (1)
76.2 (250)
152.4 (500) 76.2 (250)
152.4 (500)
0.55 (0.75) 76.2 (250)
152.4 (500) 76.2 (250)
152.4 (500)
0.37 (0.5)
76.2 (250)
152.4 (500) 76.2 (250)
152.4 (500)
0.55 (0.75) 0.55 (0.75) 61.0 (200)
121.9 (400) 61.0 (200)
121.9 (400)
0.37 (0.5)
61.0 (200)
121.9 (400) 61.0 (200)
121.9 (400)
0.37 (0.5)
0.37 (0.5)
45.7 (150)
106.7 (350) 45.7 (150)
106.7 (350)
Important:
The recommended drive carrier frequency is 2 kHz. This carrier frequency
should be used for the majority of applications.
If a carrier frequency greater than 2 kHz must be used, the absolute maximum
is 4 kHz. Refer to the information below and the chart on page 2 for additional
application restrictions.
In addition, if you are using a 1305, Parameter 143 (Cable Length) should be
set to “Long.”
4 kHz
4.0 (5)
4.0 (5)
152.4 (500) 152.4 (500) 152.4 (500) 182.9 (600)
2.2 (3)
167.6 (550) 152.4 (500) 167.6 (550) 182.9 (600)
1.5 (2)
167.6 (550) 152.4 (500) 167.6 (550) 182.9 (600)
2.2 (3)
2.2 (3)
152.4 (500) 152.4 (500) 152.4 (500) 182.9 (600)
1.5 (2)
152.4 (500) 152.4 (500) 152.4 (500) 182.9 (600)
0.75 (1)
152.4 (500) 152.4 (500) 152.4 (500) 182.9 (600)
1.5 (2)
1.5 (2)
121.9 (400) 167.6 (550) 121.9 (400) 167.6 (550)
0.75 (1)
137.2 (450) 152.4 (500) 137.2 (450) 182.9 (600)
0.55 (0.75) 137.2 (450) 152.4 (500) 137.2 (450) 182.9 (600)
0.37 (0.5)
137.2 (450) 152.4 (500) 137.2 (450) 182.9 (600)
0.75 (1)
0.75 (1)
61.0 (200)
152.4 (500) 61.0 (200)
152.4 (500)
0.55 (0.75) 61.0 (200)
152.4 (500) 61.0 (200)
152.4 (500)
0.37 (0.5)
76.2 (250)
152.4 (500) 76.2 (250)
152.4 (500)
0.55 (0.75) 0.55 (0.75) 45.7 (150)
121.9 (400) 45.7 (150)
121.9 (400)
0.37 (0.5)
45.7 (150)
121.9 (400) 45.7 (150)
121.9 (400)
0.37 (0.5)
0.37 (0.5)
30.5 (100)
106.7 (350) 30.5 (100)
106.7 (350)