Rockwell Automation 1391 USER MNL/DIGITAL AC SERVO DR - Manual (Page 33)

Chapter 5
Inputs, Outputs and Switch Settings
5-4
“M” Contactor Auxiliary Contacts (TB4, Terminals 13, 14, 15, 16)
The auxiliary contacts of the integral contactor are accessed through these
terminals. Refer to Table 5.A for contact ratings.
Table 5.A
“M” Contact Ratings (minimum 50 mA at all voltages)
Volts
(U
e
)
12-120
220-240
380-480
500-600
Amperes
(I
e
)
6
3
1.5
1.2
Volts
(U
e
)
28
110
220
440
660
Amperes
(I
e
)
5.0
1.25
0.62
0.27
0.20
AC Ratings DC Ratings
Drive OK (DROK) Contacts (TB4, Terminals 17, 18)
Application of power to the transformer energizes the logic supply of the
drive. When 50% of rated DC Bus voltage is achieved and no drive faults
are detected, this relay contact is closed. The contact remains closed until a
drive fault occurs or power is removed from the transformer. Contact
rating: 115V AC, 1A or 24V DC, 0.3A.
36V AC Logic Supply Voltage (TB4, Terminals 19, 21)
The isolation transformer contains four separate windings. Each winding
supplies 36V AC. The 36V AC leads are brought out to terminals 19 and
21 of TB4. See Chapter 10 for transformer details.
Terminal Block - TB5
Motor Power Terminals (TB5, Terminals 1, 2, 3)
Motor power is provided at these terminals. Refer to Chapter 7 and
Appendix B for connection details.
Input Power Terminals (TB5, Terminals 4, 5, 6)
The drive requires a 230V AC, three-phase, 50 or 60 Hz input supplied by
the transformer secondary. Refer to Chapters 7, 10 and Appendix B for
wiring and transformer information.
External Shunt Regulator Resistor (TB5, Terminals 8, 9, 10)
The 22.5A drives have provisions to accept an external shunt resistor to
supplement the integral unit. This is available for applications that require
the dissipation of more regenerative energy to the DC Bus. To use an
external shunt resistor, first remove the jumper at terminals 8 and 10 of
TB5. Consult your Allen-Bradley sales office for application assistance.
Additionally, the bus voltage can be monitored at terminals 9 (+) and 7 (–)
of TB5.
The shunt regulator resistor supplied with the 1391-DES45 must be
externally mounted and connected to terminals 8 and 9 of TB5 prior to
operation. Refer to Chapter 10 and Appendix B for details.