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IntroProduct Notice
Use of Motors
Servo motors are intended to drive machinery . As such, they must be part of a controlled system that
includes a transistori zed electronic amplif ier. They are not intended for direct connecti on to the power
supply or for use with thyristor drives. Instructions in the amplifier and control system manuals must
be observed; this document does not replace those instructions.
Unless specified otherwise, servo motors are intended for use in a normal industrial environment
without exposure to excessive or corrosive moisture or abnormal ambient temperatures. The exact
operating conditions ma y be established by r eferring to th e data for the motor. The ma ting of motors
to machinery is a skilled operation; disassembly or repair must not be attempted. In the event that a
motor fails to operate correctly, contact the place of purchase for return instructions.
Safety Notes
There are some possible hazards associated with the use of motors. The following precautions should
be observed. Specific Warnings and Cauti ons are listed inside the back cover.
Installation and Maintenance: Installation and maintenance or replacement must be carried out by
suitably qualified service personnel, paying particular attention to possible electrical and mechanical
hazards.
Weight: Lar ge mo to rs a re generally heavy, and the cen ter of gravi ty ma y be o ffset. When handling,
take appropriate precautions and use suitable lifting equipment. Beware of sharp edges; use protective gloves when handling such ass e mbl ies .
Flying leads: Ensure that flying or loos e l ea ds are suitably re strained, to prevent snaggi ng or entanglement, before carryi ng motors with such leads.
Generation: If the motor is driven mechanically, it may generate hazardous voltages at its power
input terminals. The power connector must be suitably guarded to prevent a possible shock hazard.
Loose motors: When running an unmounted motor, ensure that the rotating shaft is adequately
guarded and the motor is physically restrained to prevent it from moving. Remove the key which
otherwise could fly out wh e n the motor is running.
Damaged cables: Damage to cables or connectors may cause an electrical haza rd. En sure th ere is no
damage before energizing the system.
Supply: Servo motors must not be directly conne cted to a power supply; they req u ire an electronic
drive system. Consult the instructions for the drive system before energizing or using the motor.
Brakes: The brakes that are included on motors are hold ing bra kes onl y and are not to be used as a
mechanical restraining device for safety purposes.
Safety requirements: The safe incorporati on of this product into a machine sys tem is the responsibility of the machine designer, who should comply with the local safety requirements at the place
where the machine is to be used. In Europe this is likely to be the Machinery Directive.
Mechanical connection : Motors must be connected to the machine with a torsionally rigid coupler
or a reinforced timing belt. Couplers which are not rigid will cause difficulty in achieving an acceptable response from the control system. Couplings and pulleys must be tight as the high dynamic
performance of a servo motor can easily cause couplings to slip, and thereby damage the shaft and
cause instability. Care must be taken in aligning couplings and tightening belt s so t h at the motor is
not subjected to significant bearing loads, or premature bearing wear will occur. Once connected to
a load, tuning will be affected. A system tuned without a load will probably require retuning once a
load is applied.
Connectors: Motor power connectors are for assembly purposes only. They should not be connected
or disconnected wh ile power is applie d.
© 1999 Rockwell Internat ion al Corporation. All rights reserve d.
Electro-Craft is a trademark of Rockwell Automation.
Printed in the United States of America.
Information contained in this manual is subject to change without notice.
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Motor Data
MOTOR N-2302-1 N-2304-1 N-3406-2 N-3412-2 N-4214-2 N-4220-2
Rotor Moment of Inertia
Rotor Moment of Inertia
Motors W/Brake
Motor Weight: Net
Brake Motor Weight: Net
Damping Nm/krpm 0.023 0.034 0.13 0.19 0.20 0.19
Friction Torque Nm 0.12 0.23 0.26 0.34 0.45 0.73
Max. Operating Speed rpm 6000 6000 6000 6000 6000 5000
Shaft Material 416 Stainless Steel
Poles 4 4 4444
Sine Wave KT
Torque Constant (2)
Square Wave KT
Torque Constant (3)
KE Voltage Constant (4) V/krpm 11 27 21 41 49 34
Winding Resistance
Phase to Phase at 25oC
Winding Inductance
Phase to Phase
Thermal Resistance
Dielectric Rating Power Leads (R, S, T) to Ground: 1800 VACrms 50/60 Hz for 1 minute.
Est. Shipping
Est. Shipping
2
kg-m
lb-in-s
kg-m
lb-in-s
kg/lb 1.0/2.2 1.5/3.3 2.6/5.7 3.5/7.7 4.7/10.4 5.9/13.0
kg/lb 1.3/2.9 1.8/4.0 3.0/6.6 4.0/8.8 5.2/11.5 6.7/14.8
kg/lb 1.3/2.9 2.0/4.4 3.4/7.5 4.3/9.5 5.1/11.2 6.9/15.2
kg/lb 1.5/3.3 2.2/4.9 3.9/8.6 4.8/10.6 5.5/12.1 7.7/17.0
oz-in/krpm 0.2 0.3 1.1 1.7 1.8 1.7
oz-in 1.0 2.0 2.3 3.0 4.0 6.5
Nm/A 0.09 0.22 0.17 0.33 0.40 0.28
in-lb/A 0.8 2.0 1.5 3.0 3 .6 2.5
Nm/A 0.09 0.24 0.18 0.37 0.45 0.3
lb-in/A 0.88 2.2 1.6 3.3 4.0 2 .7
Ohms 3.92 5.89 2.24 2.68 2.79 0.77
mH 4.2 8.8 6.1 8.6 11.0 2.9
o
C/Watt
0.000009 0.00002 0.00008 0.00015 0.00024 0.00035
2
0.00008 0.00016 0.0007 0.0013 0.0021 0.0031
2
0.000018 0.000032 0.000122 0.000202 0.000210 0.000320
2
0.00016 0.00028 0.00108 0.00179 0.00186 0.00283
3.0 2.2 1.6 1.2 1.1 0.83
MOTOR N-5630-2 N-5637-2 N-5647-2
Rotor Moment of Inertia
Rotor Moment of Inertia
Motors W/Brake
Motor Weight: Net kg/lb 9.1/20.1 11/24.3 13/28.7
Brake Motor Weight: Net
Damping Nm/krpm 0.35 0.32 0.45
Friction Torque Nm 1.3 1.6 1.7
Max. Operating Speed rpm 4000 4000 3000
Shaft Material 416 Stainless Steel
Poles 444
Sine Wave KT +10%
Torque Constant (2)
Square Wave KT
Torque Constant (3)
KE Voltage Constant (4) V/krpm 47 60 77
Winding Resistance
Phase to Phase at 25oC
Winding Inductance
Phase to Phase
Thermal Resistance
Dielectric Rating Power Leads (R, S, T) to Ground: 1800 VACrms 50/60 Hz for 1 minute.
(1) Specifications are at 25oC unless otherwise noted. (3) Peak value of per phase square wave Amperes
(2) Peak value of per phase sine wave Amperes (4) Peak value of sinusoidal phase to phase Volts
Est. Shipping kg/lb 9.6/21.2 11.7/25.8 13.8/30.4
Est. Shipping
2
kg-m
lb-in-s
kg-m
lb-in-s
kg/lb 10.9/24.0 13.2/29.1 15.9/35.1
kg/lb 11.4/25.1 13.8/30.4 13.9/37.3
oz-in/krpm 3.1 2.8 4.0
oz-in 11 14 15
Nm/A 0.38 0.49 0.63
lb-in/A 3.4 4.4 5.6
Nm/A 0.41 0.54 0.70
lb-in/A 3.7 4.8 6.2
Ohms
±10%
mH 4.3 5.2 7.0
o
C/Watt
0.0009 0.0012 0.0015
2
0.008 0.01 0.013
2
0.000651 0.000778 0.000893
2
0.00576 0.00689 0.00791
0.89 1.0 1.23
0.81 0.76 0.70
MECHANICAL DATA (1)
WINDING DATA (1)
MECHANICAL DATA (1)
WINDING DATA (1)
Ambient Temperature: Operating 0 to 40°C (32 - 104°F) Relative Humidity: 5% to 95%
Storage 0 to 50°C (32 - 122°F) non-condensing
STORAGE AND OPERATING CONDITIONS
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Dimensional Data
Intro
SHAFT END PLAY UNDER LOAD
Maximum end play (All Motors)
Direction mm/in
---> A 0.127/
<--- B 0.025/
Note: End play and load are measured in inches and
pounds. Metric measurements are approximate conversions from inches and pounds.
0.005
0.001
Load
(Kg/Lb)
3.8/10
AB
AB
brake option
connector
N-2300
L
N-3400
N-4200
N-5600
brake option
connector
BE
power
connector
BE
U
BB
AH
AH
BB
S
U
BF DIA HOLES
AJ DIA CIRCLE
BF DIA HOLES
AK
P
AK