Rockwell Automation 1325L DC Motors, Frames C210ATZ - C440ATZ - Manual (Page 6)

6 DC Motors
1 When the armature power supply cannot be designated by a single letter code (A. K etc.) the power
supply shall be identified by the following code stamped on the motor nameplate: “M/N F-V-H-L.”
where M = Total pulses per cycle
N = Total controlled pulses per cycle
F = Free wheeling (if used)
V = Nominal line-to-line a-c voltage to rectifier
H = Line frequency-Hz
L = Value of series inductance (in millihenries) to be added externally to the motor armature circuit.
Examples:
A. "6/3 F-380-50-12" defines a power supply having 6 total pulses per cycle, 3 controlled pulses
per cycle (S-3), with free wheeling, 380 volts. 50 Hz AC input to bridge, and a 12 millihenry
choke to be added externally to the motor armature circuit.
B. "3/3 480" defines a power supply having three total pulses per cycle, three control pulses per
cycle. 480 volts line-to-line input to the rectifier. 60 Hz power supply and no external inductance
required in the armature circuit. Note that since the power source is 60 Hz and no series
inductance is required. both quantities may be omitted from the code. If one of the quantities is
indicated, both must be included to avoid confusion.
Conduit Box
Conduit boxes can be rotated in 90 degree increments for lead outlet
at top, sides or bottom.
Conduit box locations can be changed from F1 to F2 or F2 to F1 by
rotating the frame 180
° around the shaft axis and reconnecting the
brush stud leads. (contact factory for reconnecting brush stud leads.)
To obtain proper planity between the integral mounting feet on the
front and back end brackets, a smooth level surface should be used to
align the brackets when they are assembled to the frame.
Connections
Important: If motor has parallel leads, all lugs with the same marking:
For example, A1, A1, must be connected together.
Figure 1
Basic DC Motor and Generator Connections
If machine has no series field, disregard S1 and S2 above. For
machines with special windings, refer to motor or generator and
controller diagrams.
Description Code 1
DC generator, battery or twelve pulse/cycle, 6 phase, full control A
Six pulse cycle, 3 phase, full control 230 or 460 volt, 60 Hz input to rectifier C
Three pulse/cycle, 3 phase, semi-bridge, half control 230 or 460 volt, 60 Hz input to
rectifier D
Three pulse/cycle, 3 phase, half-wave (single way) 460 volt, 60 Hz input to rectifier E
Two pulse/cycle, 1 phase full wave (bridge circuit with 2 controlled rectifiers and 2-
uncontrolled rectifiers with free wheeling rectifier) 230 volt, 60 Hz input
K
+A1 Motor
Type CCW
Rotation Facing Commutator End
CW
A2
S1
–S2
+F1
–F2
A1
+A2
S1
–S2
+F1
–F2
A1 Generator
+A2
S1
–S2
–F1
+F2
A1
+A2
–S1
S2
+F1
–F2