Rockwell Automation M3575TL Snubber Braking Kits, AC Drives, Enclosed - Manual (Page 9)

Enclosed Resistor Modules, Enclosed Transistor Modules 9
Braking Resistor Unit Field Connection Notes
Observe the following precautions when making field connections:
• Do not connect the Braking Resistor Unit directly across the DC bus. This would exceed the maximum
duty cyle rating of the load. The extreme overheating generated by the load resistors under this condition
could present a fire hazard in and around the resistive load module.
• Be sure the Braking Resistor Unit being connected meets the minimum load resistance requirements listed
in table 1 or table 2.
• Field connection terminals used on the bookshelf style and standard enclosed style Braking Resistor units
will accept a 10 AWG maximum wire size. Wires should be stripped 0.25”. Crimp-style terminations are not
recommended.
• Wire types and sizes should be chosen in accordance with local, national, and/or international electrical
codes as well as module termination limitations to meet the voltage and current levels present for the
application.
!
ATTENTION: Only qualified personnel familiar with the construction and operation of this
equipment and the hazards involved should install or service this equipment. The user is
responsible for conforming with all applicable local, national, and international codes. Failure to
observe these precautions could result in personal injury and/or damage to, or destruction of,
the equipment.
Figure 4 – Wall-Mounted Braking Resistor Unit Field Connections
Ground
3 Line
Ground
Motor and Drive
M3575R Braking Resistor Unit Field Connections
NOTES
115 VAC
Temp alarm opens upon a fault and is rated at 0.5 amps (115 VAC). 1.
2.
18 AWG
To Braking
Module
See Note 1
For Drives With Internal Braking Transistor (such as GV3000/SE Bookshelf drives)
+ Brake Out
- Brake Out
See Note 2
Refer to drive instruction manual for drive connections.
FAN
(OPTIONAL)
115VAC 115VAC
ALARM
TEMP
RES RES
1 2 3 4 5 6
M3575R
U
V
W
(-)
45
(+) 47
48
L1
L2
L3