Manual

4 1204 Reflected Wave Reduction Device
Determining the Maximum Cable
Length for your System
Thefollowingtableswillhelpyoudeterminethemaximumcablelength
for your system.
Important: The values shown in the following tables are for nominal
input voltage. If you are running at high line conditions
(nominallinevoltageplus10%),multiplythelistedvalues
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)