Tb2 – shunt regulator terminals, Internal shunt power ratings for drive models – Rockwell Automation 1398-DDM-xxx USE MNL/ULTRA 200 DIG.SERVO.DR User Manual
Page 122
Publication 1398-5.0 – October 1998
7-12
Power Connections
If the application requires a higher continuous power dissipation, the
ULTRA 200 Series provides easy access to an external shunt
connection. Connecting an external resistor requires disabling of the
internal shunt resistor. Figure 7.4 depicts the use of one or more shunt
resistors to provide 1X, 4X or 9X resistance (200 Watts to 2.4 kWatts).
!
Intro
ATTENTION: Do not tin (solder) the exposed leads on
cables. Solder contracts over time and may loosen the
connection.
Table 7.8:
TB2 – Shunt Regulator Terminals
Terminal
Description
TB2-1
Positive DC bus
TB2-2
Internal shunt regulator resistor
TB2-3
Shunt regulator transistor collector
NOTE:Torque all terminal connections to 11.0 lb-in.
Table 7.9:
Internal Shunt Power Ratings for Drive Models
Drive Model
1398-DDM-
010,
1398-DDM-
010X
1398-DDM-
020,
1398-DDM-
020X
1398-DDM-
030,
1398-DDM-
030X
1398-DDM-
075,
1398-DDM-
075X
1398-DDM-
150,
1398-DDM-
150X
Continuous Shunt
Power (Watts)
50
50
50
50
180
Peak Shunt
Power (kWatts)
4.5
4.5
4.5
10.0
19.0
Table 7.10:
Maximum External Shunt Power Ratings for Drive Models
Drive Model
1398-DDM-
010,
1398-DDM-
010X
1398-DDM-
020,
1398-DDM-
020X
1398-DDM-
030,
1398-DDM-
030X
1398-DDM-
075,
1398-DDM-
075X
1398-DDM-
150,
1398-DDM-
150X
Continuous Shunt
Power (kWatts)
2.4
2.4
2.4
4.0
8.0
Peak Shunt
Power (kWatts)
6.0
6.0
6.0
10.0
19.0