Aerotech Automation1 XC6e Series, Hardware Manual

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2.8. Shunt Options
DANGER : The shunt resistor dissipates a high quantity of power. To prevent the danger of
electric shock or fire, you must obey the precautions that follow:
l
Correctly size, mount, and protect the external shunt resistor.
l
Protect the wiring to the internal shunt resistor terminals.
l
Do not touch the shunt resistor terminals. There are lethal voltages on the ter-
minals.
l
Do not touch the surface of the drive or the external shunt resistor. The tem-
perature can exceed 70°C.
l
Restrict access to the shunt resistor while it is connected to a power source.
You have two shunt connection options: Internal and External. You cannot connect to both shunt
options at the same time.
The DC Bus+ and DC Bus- connections provide access to the DC motor supply. The shunt and bus
connections do not contain internal fuses. Refer to
Table 2-51 for the connector pinout.
The shunt resistor is used to dissipate excess energy and keep the internal drive voltage within safe
levels. The drive will turn this resistor "ON" when the internal bus voltage reaches a specific range based
off of the voltage option that was ordered (refer to the Turn-On Range in
Table 2-53 ).
Internal Shunt Connections : Connect the Internal Shunt pin to the Shunt Return pin.
External Shunt Connections : Connect your shunt resistor between the External Shunt pin and
the Shunt Return pin.
Table 2-51: Bus Link Connector Pinout
Pin Description
Recommended
Wire Size Connector
A DC Bus +
8.36 mm
2
(#8 AWG)
B DC Bus -
8.36 mm 2 (#8 AWG)
C External Shunt
1.5 mm
2
(#16 AWG)
D Internal Shunt
1.5 mm
2
(#16 AWG)
E Shunt Return
1.5 mm
2
(#16 AWG)
Table 2-52: Mating Connector Part Numbers for the Bus Link Connector
Description
Aerotech
P/N
Phoenix
P/N
Tightening
Torque
(N·m)
Wire Size: mm
2
[AWG]
5-Pin Terminal Block ECK02494 1784088 0.5 - 0.8 1.5-8.36 [16-8]
Table 2-53: Internal Shunt Specifications
Option Description
Part Numbers
Vishay/Dale [Aerotech]
Turn-On
Range (VDC)
Turn-Off
Range (VDC)
-240
50 Ω (min), 300 W; 4000 µF
Effective Bus Capacitance RBEF030050R00KFBVT
[ECR01039]
380 - 395 360 - 370
-480
125 Ω (min), 300 W; 1500 µF
Effective Bus Capacitance RBEF0300125R0KFBV
[ECR01045]
865 - 880 815 - 830
2.8. Shunt Options XC6e Hardware Manual
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