34 Rockwell Automation Publication MOTION-AT007A-EN-P - May 2020
Chapter 3 Non-regenerative Common DC-bus Configurations With Passive or Active Shunt
Figure 20 - 2198-Pxxx Power Supply with External Active Shunt (external brake resistor)
(1) Configure any available digital input as Shunt Thermal Switch OK. See the Kinetix 5700 Servo Drives User Manual, publication 2198-UM002, for more information on configuring digital inputs.
(2) Powerohm PWB050 and PWB050-800 shunts require 120V AC between pins 9 and 10 to supply power to the cooling fans.
See Knowledgebase document 1082777 for more information on wiring to these Powerohm Bulletin PWBxxx active shunts.
Refer to the Powerohm documentation included with your Bulletin PKB or PWB shunt module to install, wire, and configure the module.
• To avoid nuisance thermal overload trips, configure Bulletin PKB and PWB active-shunt modules to the highest shunt turn-on voltage
setting. The recommended setting for Line Voltage Level Jumper is JP5.
• Configure Bulletin PKB and PWB active-shunt modules in Internal (automatic) mode. Unless an external enable signal is provided,
configure the Brake Enable Jumper in Internal (automatic) mode (JP6 is in the downward position).
Power Supply Ground Screw Setting
The 2198-Pxxx DC-bus power supply has a factory-installed ground screw for grounded-wye power distribution. This table summarizes the
ground screw settings for the 2198-Pxxx DC-bus power supply.
Table 22 - Ground Screw Settings for the DC-bus Power Supply
Ground Configuration
2198-Pxxx
DC-bus Power Supply
Grounded (wye)
Ground screw installed (default setting)
(1)
(1) Ground screw is factory installed.
• Impedance grounded
• Corner grounded
•AC-fed ungrounded
Remove ground screw/jumper
IMPORTANT If you have grounded-wye power distribution in your facility, do not remove the ground screw from the DC-bus power supply.
Remove the ground screw when using ungrounded, corner-grounded, or impedance-grounded power.
3
4
R1
R2
DC+
DC–
DC+
DC–
DC+
DC–
INx
COM
(1)
24V DC
120V AC
9
10
(2)
TS
TS
External DC-bus
Powerohm
External Passive
Shunt Module
Resistor
Thermal
Switch
Digital Input
(IOD) Connector
Powerohm
Bulletin PWBxxx-xxx
Active Shunt Module
4.6 m (15 ft)
Maximum Cable Length
9.1 m (30 ft)
Maximum Cable Length
2198-xxxx-ERSx
Inverter
Fault Contact
2198-Pxxx
DC-Bus
Power Supply
2198-CAPMOD-2240
Capacitor Module