PowerFlex Digital DC Drive User Manual - Publication 20P-UM001C-EN-P - July 2008
Installation and Wiring 1-31
Frame C Heatsink Cooling Fans and Armature Fuse Signal Terminals
Frame C drives require an external power supply for the heatsink cooling
fans and include internal armature circuit protection fuses (drives rated
521A @ 230V AC and 495A and 667A @ 460V AC input only). The
terminals for the internal armature circuit protection fuses can be connected
to an external device to provide indication that the fuses have opened.
Table 1.J Heatsink Cooling Fans and Fuse Signal Terminal Designations
Table 1.K Heatsink Cooling Fans and Fuse Signal Wire Sizes and Terminal
Specifications
Figure 1.28 Frame C Heatsink Cooling Fan and Internal Fuse Signal Terminal Block
Locations
Terminal Description Maximum Voltage Maximum Current
U3
Single-phase AC input power for cooling fans. 230V AC 1A
V3
81
Internal armature fuse intervention signal. 250V AC 1A
82
Frame
Drive Current Rating
Code
(1)
(1)
Refer to Catalog Number Explanation on page Preface-4, positions 8-10 for corresponding drive HP rating,
armature amp rating and field amp rating.
Terminals
Wire Size and Type
(2)
(2)
See Cable and Wiring Recommendations on page 1-14 for more information.
Tightening Torque
(N
•m / lbs•in)230V 460V
Flexible
(mm
2
)
Multi-core
(mm
2
)AWG
All All All U3, V3,
81, 82
0.14 - 1.5 0.14 - 2.5 26 - 16 0.4 / 3.5
81 82
U3 V3