WITTUR DUM 6 Series User manual

DUM 6
DUF 6
Servomotors
Rated continuous torques
from 0.4 Nm to 63 Nm
Operating Manual

2Operating Manual DUM/F 6-Servomotors V 20 dition: 12 March · 2019
These operating instructions are
applicable to servomotors
DUM 6- ......
DUF 6- ......
dition: 12 March 2019 V 20
WITTUR lectric Drives GmbH reserves the right to
correct or change the contents of this information and
product details without prior notice. No liability can be
accepted for damage, injuries or outlay arising there-
from. We cannot warrant the correctness and com-
pleteness of the details.
Offenburger Str. 3
D-01189 Dresden
Germany
Tel. +49 (0 ) 3 51-40 44-0
Fax +49 (0 ) 3 51-40 44-1 11
[e-mail]
www.wittur-edrives.de

3
V 20 dition: 12 March · 2019 Operating Manual DUM/F 6-Servomotors
Contents
Safety instructions 4
EC Declaration of Conformity 5
Overview 6
Basic features 7
Speed-torque characteristic 8
Standards, codes and regulations 8
Construction, definitions 9
Drive end 9
Direction of rotation 9
ameplate 9
Symbols 9
Installation and operation 10
Degree of protection 10
Cooling, altitude, ambient conditions 10
Shaft ends 11
Holding brake 11
Winding, insulation system 12
Separately driven fan 12
Conductor size 12
Speed and shaft position measuring system / resolver 12
Monitoring the winding temperature 13
Transport and packaging 14
Storage 15
Maintenance 15
Safety instructions 15
Maintenance intervals 15
Permissible axial and radial forces 16
Axial forces 16
Radial forces 17
Connection system DUM/F 6-A...D 18
Accessories 18
Connection system DUM/F 6-E 19
Accessories 19
Type code 20
Technical data DUM 6-A... 22
Technical data DUM 6-C... 24
Technical data DUM 6-D... 26
Technical data DUM 6-E... 28
Technical data DUF 6-C... 30
Technical data DUF 6-D... 32
Technical data DUF 6-E... 34

4Operating Manual DUM/F 6-Servomotors V 20 dition: 12 March · 2019
Only qualified personnel are allowed to perform any planning, installation or maintenance work.
The personnel must be trained for the job and must be familiar with the installation, assembly, commissioning and operation of the
product.
The instructions given in this manual or any other instructions supplied must always be observed.
Safety instructions
The motors of the series DUM/F 6 are designed for use in commercial plants. They comply with the harmonised standards of the
series VD 0530 / N 60034. They are not to be operated in hazardous areas unless expressly permitted (note additional refer-
ence).
The local conditions on site shall comply with the nameplate data. During operation (even at zero speed), the motors possess dan-
gerous live and moving parts and may have hot surfaces. Only qualified and competent specialist personnel are allowed to han-
dle, connect, commission and maintain the motors. (Observe VD 0105; I C 364). Improper conduct may result in serious injury to
persons and property.
In this manual, the following pictograms are used to mark warnings and important notes.
means that death or serious injury to persons or property will occur unless the appropriate precautions are
taken.
means that death or serious injury to persons or property may occur unless the appropriate precautions are
taken.
means that slight injury or damage to persons or property may occur unless the appropriate precautions are
taken.
·Remove power to the machine before starting any work on the motors.
·Check the proper functioning of the brake (if provided) after installing the motor.
·Repairs may only be carried out by the manufacturer or an authorised repair agency. Unauthorised opening
and tampering may lead to bodily injury and property damage and may entail the loss of warranty rights.
·Before commissioning motors with a shaft key, secure the key to ensure that it cannot be thrown out if this is
not already prevented by driving elements such as a belt pulley, coupling, etc.
·The motors are not designed for direct connection to the three-phase system but are to be operated via an
electronic power converter. Direct connection to the system may destroy the motor.
·Surface temperatures of more than 100°C may occur on the motors. Therefore, no temperature-sensitive
parts must be allowed to come into contact or be attached to them. Protection against accidental contact
should be provided, if required.
·The optional holding brake is only designed for a limited number of emergency brakings. Never use it as a
working brake.
·On motors with plug connector and built-in brake, it is the user's responsibility to install the varistor provided
to control the brake.
·Connect the winding temperature sensor and evaluate its signal by means of a suitable circuitry. The temper-
ature sensor protects the motor from thermal overload if the temperature change is slow. It does not, howev-
er, provide an allround protection. Therefore, additional measures such as monitoring I2t by the converter
electronic system are required to protect the motor from fastarising thermal overload.
·Dangerous voltages are applied at the terminals of synchronous motors when the rotor is turning.

5
V 20 dition: 12 March · 2019 Operating Manual DUM/F 6-Servomotors

6Operating Manual DUM/F 6-Servomotors V 20 dition: 12 March · 2019
Overview
Motor type
Stall torque Rated torque at
10 min-1 1.000 min-1 1.500 min-1 2.000 min-1 3.000 min-1 4.000 min-1 6.000 min-1
Md10 [ m] Md [ m] Md [ m] Md [ m] Md [ m] Md [ m] Md [ m]
self-cooling
DUM 6-A1 0,48 0,43
DUM 6-A2 0,68 0,62
DUM 6-A3 0,89 0,80
DUM 6-A4 1,17 1,05
DUM 6-C1 4,0 3,8 3,5 3,1
DUM 6-C2 5,8 5,5 4,8 4,2
DUM 6-C3 7,2 6,9 6,4 5,7
DUM 6-C4 8,6 8,3 7,6 6,8
DUM 6-D1 8,3 8,0 7,6 6,8
DUM 6-D2 11,8 11,5 11,0 9,5
DUM 6-D3 15,6 15,0 14,0 11,9
DUM 6-D4 18,8 18,0 16,9 13,7
DUM 6- 1 23,7 23,0 19,0 14,0
DUM 6- 2 35,5 34,4 28,0 19,0
DUM 6- 3 48,5 47,0 40,0 27,0
enforced-cooling
DUF 6-C1 5,2 5,2 4,7 4,2
DUF 6-C2 7,7 7,4 6,4 5,6
DUF 6-C3 9,5 9,3 8,6 7,7
DUF 6-C4 11,4 11,2 10,3 9,2
DUF 6-D1 11,0 10,8 10,3 9,1
DUF 6-D2 15,6 15,6 14,9 12,8
DUF 6-D3 20,6 20,2 18,9 16,1
DUF 6-D4 24,8 24,3 22,8 18,5
DUF 6- 1 30,8 30 28 24
DUF 6- 2 45,8 45 40 34
DUF 6- 3 63 62 57 48

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V 20 dition: 12 March · 2019 Operating Manual DUM/F 6-Servomotors
Standard Options
Construction type IM B5 (IM V1, IM V3)
Degree of protection IP 65
Shaft exit IP 64 IP 65
Motor type permanent-field synchronous servomotor
Magnet material neodymium-iron-boron
Rated data for duty S1 (continuous operation)
Vibrational severity B
Flange accuracy N R
Thermal class 155 (F); wire insulation class 180 (H)
Winding protection thermistor (PTC) 150°C (with
reinforced insulation to N 50178)
KTY 84; KTY 83;
miniature thermal-delay switch
Connection to system connector (rotatable, speedT C - compatible)
Measuring system connection connector (rotatable, speedT C - compatible)
Measuring system resolver absolute sine-cosine encoder
Cooling self-cooling enforced cooling
Brake - permantent-field holdig brake
Paint finish RAL 9005 (dull black) special paints
Bearings radial deep-groove ball bearing, life-lubricat-
ed (locating bearing at D-end)
Shaft end plain shaft end key (to DIN 6885)
balanced with half-key
Ambient temperature range from -15°C to +40°C
Max. rel. humidity 90 % at 20°C (no moisture condensation)
UL-file number 234 973
Basic features

8Operating Manual DUM/F 6-Servomotors V 20 dition: 12 March · 2019
Speed-torque characteristic
M
Mmax
Md0 MdN
nNn
S1-105K
nmax
UDC
continuous duty
intermittend duty
Md0 Stall torque Thermal limiting torque of the motor at standstill (n =0min-1). This torque can be
delivered for any length of time (S1).
Md10 Stall torque Thermal limiting torque of the motor at n > 10 min-1. This torque can be delivered for
any length of time (S1).
Mmax. Max. torque Maximum permissible torque which the motor can deliver for short periods.
MdN Rated torque Thermal limiting torque of the motor at rated speed with duty S1
IdN Rated current Rated current of the motor (at nNand MdN)
nN Rated speed Rated motor speed
nmax. Max. speed Maximum permissible motor speed
UDC D.c. link voltage The d.c. link voltage determines the maximum available output voltage of the con-
verter and thus the motor speed which can be achieved.
Definitions
Standards, codes and regulations
The servomotors of the
DUM/F 6 series are designed
in accordance with I C rec-
ommendations and the appli-
cable VD and DIN standards
(see table opposite).
The motors are manufactured
in accordance with the inter-
national quality standard
ISO 9001.
Title DI /VDE E IEC
Rotating electrical machines;
rating and performance DIN VD 0530 Part 1 N 60 034-1 I C 600 34-1
Terminal markings and direction of
rotation DIN VD 0530 Part 8 N 60 034-8 I C 600 34-8
Classification of types of construc-
tion and mounting arrangements DIN VD 0530 Part 7 N 60 034-7 I C 600 34-7
Methods of cooling DIN VD 0530 Part 6 N 60 034-6 I C 600 34-6
Classification of degrees of protec-
tion by enclosures DIN VD 0530 Part 5 N 60 034-5 I C 600 34-5
Mechanical vibration of certain
machines – Measurement, evalua-
tion and limits of vibration severity
DIN VD 0530 Part 14 N 60 034-14 I C 600 34-14
Noise limits DIN VD 0530 Part 9 N 60 034-9 I C 600 34-9
Cylindrical shaft ends for rotating
electrical machinery DIN 748 Part 3 I C 600 72

9
V 20 dition: 12 March · 2019 Operating Manual DUM/F 6-Servomotors
The servomotors of the DUM/F 6 series are 6- or 8-pole perma-
nent-field synchronous motors with a sine-wave induced volt-
age. A new compact coil technique ensures a high power den-
sity of the motors.
Construction, definitions
DE
DE
Md0 Stall torque (at n =0min-1) Id0 Current at stall torque (at n =0min-1)
Md10 Stall torque (at n > 10 min-1) Id10 Current at stall torque (at n > 10 min-1)
MdN Rated torque IdN Rated current
PdN Rated power nNRated speed
Ru-v Phase-to-phase winding resistance (at 20°C) Lu-v Phase-to-phase winding inductance
p Number of pole pairs keVoltage constant
Mmax Max. permissible torque Imax Max. permissible current
nmax Max. permissible speed JLRotor inertia
m Motor weight fNRated frequency
FAAxial force FQRadial force
RSPhase resistance (at 20°C)) LSPhase inductance
Drive end
In DIN N 60034-7, the two ends of a motor are
defined as follows:
DE: Drive end of the motor
DE: Non-drive end of the motor
When the motor terminals U1, V1, W1 are connect-
ed to a supply voltage L1, L2, L3 (with this same
phase order) the motor rotates clockwise when
viewed facing the D-end.
Direction of rotation
ameplate
Symbols

10 Operating Manual DUM/F 6-Servomotors V 20 dition: 12 March · 2019
The motors of the DUM/F6 series are generally designed to meet degree of protection IP65 as specified in DIN N 60034-5.
See table below for the respective sealing.
Shaft sealing Degree of
protection User information
Diaphragm seal (standard) IP 64
xposure to moisture in the shaft and flange area must be kept to a mini-
mum.
Please contact us, if the motor is mounted with the "shaft end
upward“ (IM V3, IM V19, IM V36).
Shaft outlet is not dustproof.
Rotary shaft seal (option) IP 65 Suitable for the installation of non-sealed gear units to seal against oil.
Lubrication of the rotary shaft seal
When using a rotary shaft seal, note that the sealing lip needs to be sufficiently lubricated and cooled with a
high-quality mineral oil such as SA 20 to ensure the proper functioning of the seal. Sufficient lubricant supply
is required for proper heat dissipation.
If the shaft seal is greased, the maximum permissible motor speed may need to be reduced.
Regular regreasing is imperative!
xcessive peripheral speeds destroy the sealing lip and its protective function is no longer guaranteed.
The rated power (rated torque) applies to continuous
operation (duty type S1) at a coolant temperature of
40°C and an altitude of up to 1,000 m a.s.l. It is deter-
mined by using defined aluminium test flanges.
If the motor flange is thermally insulated, it is not able
to dissipate the motor heat. This requires a reduction of
the rated motor torque.
At higher temperatures or altitudes, the overload capa-
bility of the motors is reduced (see table opposite).
Motor type Test flange dimensions
DUM 6-A 200 x 100 x 10
DUM/F 6-C 232 x 300 x 19
DUM/F 6-D 370 x 370 x 19
DUM/F 6- 410 x 396 x 23
Surface temperatures of more than 100°C may occur on the motors. Therefore, no temperature-sensitive parts
must be allowed to come into contact or be attached to them.
If the motor is equipped with a separately driven fan, connect the fan properly and check the direction of rota-
tion (arrow on the fan housing). Make sure that the rotation of the fan wheel is not obstructed.
The different cycle frequencies of the electronic converter output stages may require the motor to be derated,
resulting from an increased harmonic content.
A.s.l. Coolant temperature [°C]
[m] <30 30-40 45 50 55 60
1000 1.07 1.00 0.96 0.92 0.87 0.82
1500 1.04 0.97 0.93 0.89 0.84 0.79
2000 1.00 0.94 0.90 0.86 0.82 0.77
2500 0.96 0.90 0.86 0.83 0.78 0.74
3000 0.92 0.86 0.82 0.79 0.75 0.70
3500 0.88 0.82 0.79 0.75 0.71 0.67
4000 0.82 0.77 0.74 0.71 0.67 0.63
Installation and operation
Degree of protection
Cooling, altitude, ambient conditions

11
V 20 dition: 12 March · 2019 Operating Manual DUM/F 6-Servomotors
Motors of the DUM/F 6 series have cylindrical shaft ends to DIN 748. As an option, the shaft end is also available with a
keyway to DIN 6885, Part 1.
Use suitable devices for mounting and pulling off driving elements such as gears, pulleys, couplings, etc. Support the
device at the D shaft end.
Do not expose the motor to any impacts or blows.
The optional built-in holding brake is used to fix the motor shaft when the motor is at rest or de-energised. It is a perma-
nent-field single-disc brake which operates on the closed-circuit principle, i.e. the brake is effective when the motor is de-
energised, thus brakig the motor shaft.
The holding brake is not a working brake.
Holding brakes are operated on d.c. current. The nominal voltage is 24 V. They can be connected to a central d.c. voltage
supply. Overvoltages, even transient, are not permitted since they deteriorate the permanent magnets irreversibly. The
excitation current ripple must be less than 20 % to ensure reliable opening of the brake and prevent disturbing humming
noises.
If the excitation current of the holding brake
is switched off on the d.c. side, a voltage
peak occurs which can be higher than
1,000 V. It is caused by the inductance of the
holding brake. A varistor R should be con-
nected in parallel to the coil to prevent this
voltage peak. Recommended type:
Q69-X3022 (S 14 K 30).
Since the holding brakes are permanent-magnet brakes, be sure to observe the correct polarity of the d.c. volt-
age, otherwise the brake will not open.
Modern (field-oriented) frequency converters are able to produce a high torque even at low motor speeds. If
the converter has a sufficient current reserve, a multiple of the rated motor torque can be produced. In this
case the motor shaft may turn even if the holding brake is applied, because the holding torque of the brake is
exceeded.
Suppressor circuit
+
-
U
Haltebremse
holding brake
Shaft ends
Holding brake
Motor type
Shaft end Keyway
D1 L1 B L2 L3
DUM 6-A Ø9k6 20 3 12 4
DUM/F 6-C Ø 19 k6 40 6 32 4
DUM/F 6-D Ø 24 k6 50 8 40 5
DUM/F 6- Ø 32 k6 58 10 50 5
L1
B
L2
L3
D1

12 Operating Manual DUM/F 6-Servomotors V 20 dition: 12 March · 2019
The motors are not designed for direct connection to the three-phase system but have to be operated via an
electronic converter. Direct connection to the system may destroy the motor.
Winding, insulation system
The insulation materials we use ensure insulation class 155 (F) to DIN N 60034. Therefore, the winding temperature rise
may be max. 105 K at a coolant temperature of + 40°C. We also use insulation materials with the temperature profile TI 200
of class 180 (H) to increase the reliability of the motors.
The insulation system of the motors is designed such that they can be connected to a converter with a maximum d.c. link
voltage Ulink max. up to max. 700 Volt.
Note: Ulink max. is the maximum value of the d.c. link voltage which is only transient and approximately equivalent to the
inception voltage of the braking chopper or of the energy recovery unit.
The maximum permissible rate of voltage rise (dU/dt) at the motor terminals may be max. 4 kV/µs. The overvoltage at the
motor terminals must not exceed 1.56 kV. It may be necessary to use motor current filters or reactors to achieve these
values.
Separately driven fan
The motors DUF are forced-air-cooled by an axial fan. The connection data are given on the motor nameplate. The necessary ter-
minal plug is included in the delivery of the motor.
Conductor size
The recommended values for the dimensioning of the conduc-
tor cross-sections are given in the table. They are specified in
DIN VD 0113 ( N 60 204) " lectrical equipment of industrial
machines" for the current carrying capacity of PVC-insulated
cables with copper conductor routed in cable ducts. The maxi-
mum permissible ambient temperature is +40 °C.
Motor type Rated voltage Rated torque Degree of protection
DUF 6-C... 230 V (+6%/-10%) 50/60 Hz 0.07 A IP 54
DUF 6-D... 230 V (+6%/-10%) 50/60 Hz 0.12 A IP 54
DUF 6-E... 3x400 V (+6%/-10%) 50/60 Hz 0,15 A IP 44
Conductor size
[mm2]
perm. maximum
current [A]
0.75 7.8
1.0 9.6
1.5 14.4
2.5 18.3
4.0 25.0
6.0 32.0
10.0 43.0
16.0 58.0
The DUM 6 motors are equipped with 2-pole resolvers, size 15, for speed and shaft position control..
Speed and shaft position measuring system / resolver
The measuring system of synchronous motors (DUM 6) must be adjusted to the respective converter. Any mis-
adjustment may lead to uncontrolled motor response or complete failure of the motor.
ote: 2-pole resolvers are installed as standard. Other resolver pole numbers or other measuring systems are available
(e.g. absolute sine-cosine encoders).
Technical data
Number of poles 2
Transformation ratio 0.5 ±5%
Input voltage/frequency 7V / 10 kHz
Input current 65 mA max.
lectrical error ±10’ max.
Phase displacement 0° nom.
R1
R2
S1
S3
S4 S2
rot/weiß
red/white
sw/wß od. ge/wß
bk/white or ye/white
gelb
yellow
blau
blue
rot
red
schwarz
black
S1: Cos high S2: Sin high
S3: Cos low S4: Sin low
R1: Excitation high R2: Excitation low
US1-S3 = K * UR1-R2 * cos υ
US2-S4 = K * UR1-R2 * sin υ

13
V 20 dition: 12 March · 2019 Operating Manual DUM/F 6-Servomotors
The evaluation of the temperature sensor belongs to the monitoring of the motor winding. The temperature
sensor follows rapid temperature changes only with delay. specially the windings of small motors (DUM 6-Ax)
are very sensitive to overload.
PTC thermistors are installed as standard in the D winding head to protect the winding from thermal overload when the
temperature change is slow (temperature change in minutes or hours).
The maximum operating voltage of the PTC thermistors must not exceed 30V-.
Due to the non-ideal thermal coupling, the temperature sensor follows rapid winding temperature changes only with delay,
thus being unable to protect the winding if the thermal overload of the motor is transient and high. Therefore, additional
protection is required (such as monitoring I2x t by the converter electronic system) to protect the motor from fast-rising ther-
mal overload.
Monitoring the winding temperature
DUM 6-A
with single PTC thermistor STM 150
DUM/F 6-C; DUM/F 6-D and DUM/F 6-E
with triplex PTC thermistor STM 150 D
1 x 4000
1 x 1330
1 x 550
1 x 250
-20°C
130°C
145°C
150°C
155°C
165°C
Widerstand / Resistance [Ω]
Temperatur / Temperature
3 x 4000
3 x 1330
3 x 550
3 x 250
-20°C
130°C
145°C
150°C
155°C
165°C
Widerstand / Resistance [Ω]
Temperatur / Temperature
ote: The built-in PTC thermistor is the basic version. Other temperature detectors such as KTY 84 or miniature thermal
time-delay switches are available as an option.
0
1
2
3
4
0 5 10 15 20 25
Zeit / time t [s]
I / Id0
DUM 6-Ax (betriebswarm / at operating temperature)
DUM 6-Ax (kalt / cold)
empfohlene Stromgrenze / recommended current limit
The characteristics apply in case of a failure. They must not be applied for normal motor operation.
The r.m.s. value of the motor current is not permitted to exceed the nominal continuous current IdN within any
cycle!
The maximum motor current must be limited to ensure that the temperature sensor trips quickly enough. (See the following
diagrams to adjust the recommended current limits.) If a higher current limit needs to be adjusted, the current must not
exceed the current-time values shown in the characteristics and the motor max. current Imax .

14 Operating Manual DUM/F 6-Servomotors V 20 dition: 12 March · 2019
The packaging and transport technologies are dependent on the shipping conditions. The following types of packaging are
provided:
•Folding boxes
•Covered and steel-strapped flat pallets (transport by lorry)
•Special pallets
•Special packaging in wooden cases
The motors should always be shipped so that no damage can occur in transit.
Transport and packaging
Avoid any impacts, sharp sudden movements and strong vibrations during transport. Operate the crane only at
creeping speed to lift or place down the motors. This prevents damage to the bearings or the machine.
The motors leave the factory in a faultless condition after being tested.
Make a visual check for any external damage immediately upon their arrival on site. If any damage caused in transit is
found, make a notice of claim in the presence of the forwarder. In addition, report the damage to the manufacturer at the
latest within one week. Do not put these motors into operation.
0
1
2
3
4
0 5 10 15 20 25
Zeit / time t [s]
I / Id0
DUM 6-Cx (betriebswarm / at operating temperature)
DUM 6-Cx (kalt / cold)
empfohlene Stromgrenze / recommended current limit
0
1
2
3
4
0 5 1015202530
Zeit / time t [s]
I / Id0
DUM 6-Dx (betriebswarm / at operating temperature)
DUM 6-Dx (kalt / cold)
empfohlene Stromgrenze / recommended current limit
0
1
2
3
4
0 10 20 30 40 50 60
Zeit / time t [s]
I / Id0
DUM 6-Ex (betriebswarm / at operating temperature)
DUM 6-Ex (kalt / cold)
empfohlene Stromgrenze / recommended current limit
0
1
2
3
4
0 5 10 15 20 25
Zeit / time t [s]
I / Id0
DUF 6-Cx (betriebswarm / at operating temperature)
DUF 6-Cx (kalt / cold)
empfohlene Stromgrenze / recommended current limit
0
1
2
3
4
0 5 1015202530
Zeit / time t [s]
I / Id0
DUF 6-Dx (betriebswarm / at operating temperature)
DUF 6-Dx (kalt / cold)
empfohlene Stromgrenze / recommended current limit
0
1
2
3
4
0 10 20 30 40 50
Zeit / time t [s]
I / Id0
DUF 6-Ex (betriebswarm / at operating temperature)
DUF 6-Ex (kalt / cold)
empfohlene Stromgrenze / recommended current limit

15
V 20 dition: 12 March · 2019 Operating Manual DUM/F 6-Servomotors
Maintenance
Repairs may only be carried out by the manufacturer or an authorised repair agency. Unauthorised opening
and tampering may lead to injuries to persons and property and may lead to a loss of warranty rights.
Before starting any work on the motors, and particularly before opening any covers of active parts, make sure that the
motor and plant have been properly isolated.
This refers also to any additional or auxiliary circuits.
The " 5 safety rules" to be applied according to DIN VD 0105 are:
•Disconnect the motor.
•Lock it against unintentional restarting.
•Verify the safe isolation from supply.
•arth and short (with voltages above 1,000V).
•Safeguard or cover adjacent live parts.
Safety instructions
Careful and regular maintenance and inspections are required to recognise and remedy troubles in good time, before they
lead to major damage.
Since the operating conditions of the motors differ considerably, only general maintenance intervals to ensure trouble-free
operation can be specified. They need to be adapted to the local conditions such as the actual level of contamination, num-
ber of starts, load, etc.
•Clean the motor, depending on the local level of contamination.
•Retighten the electrical and mechanical connections. Check for deterioration of running smoothness or bearing noise:
after approx. 500 operating hours, but after 1 year at the latest.
•With rotary shaft seal option only: Regrease the rotary shaft seal depending on the operating mode every 50 to 500
operating hours (applies only to grease lubrication!).
Maintenance intervals
If the motors are not installed immediately after their arrival, they should be properly stored.
Store the motors only in closed, dry, dust-free, well-ventilated and vibration-free rooms. Damp rooms are unsuitable for
storage! Do not remove the anti-corrosive coat from the shaft ends, flange surfaces, etc. Check it at certain intervals
depending on the ambient conditions, and touch up, if required.
Take care that no vibrations occur in storage to prevent the anti-friction bearings from being damaged. It is advisable to
turn the rotor several times at certain intervals to prevent corrosion of the bearings.
After prolonged storage (>3 months), rotate the motor in both directions at a low speed (£100 min-1) to allow the grease to
distribute evenly in the bearings.
Storage

16 Operating Manual DUM/F 6-Servomotors V 20 dition: 12 March · 2019
Permissible axial and radial forces
The maximum permissible axial and radial forces must not be exceeded in
order to ensure smooth running of the motor.
Axial forces
The following forces FApermiss. are permitted in axial direction with the radial
force FQacting simultaneously
Depending on the mounting arrangement of the motors and the
direction of the effective axial force FA, the rotor inertial force
FGand the force of the ondular washer FWmust be taken into
consideration. The total effective axial force FAges. is calculated
as shown in the above figure.
FA
FA
FAFA
FAFA
FAges. = FA+F
W
FA ges. = FAFA ges. = FA+F
G+F WFA ges. = FA-F G
FAges. = FA-F
G+F WFAges. = FA+F G
Constructin type B5 V1 V3
l
x
F
A
F
Q
DUM/F 6-C1
110
13
DUM/F 6-C2 17
DUM/F 6-C3 20
DUM/F 6-C4 24
DUM/F 6-D1
150
25
DUM/F 6-D2 31
DUM/F 6-D3 37
DUM/F 6-D4 43
DUM/F 6- 1
435
65
DUM/F 6- 2 80
DUM/F 6- 3 95
Motor type F W[ ] F G[ ]
DUM 6-A1
90
2
DUM 6-A2 3
DUM 6-A3 4
DUM 6-A4 5
Motortyp
Axial forces FApermiss. [ ] at speeds n [min-1] (with FQ¹0)
1,000 1,500 2,000 3,000 4,000 4,500 6,000 9,000
DUM 6-A1
130 105 95 80 70
DUM 6-A2
DUM 6-A3
DUM 6-A4
DUM/F 6-C1
310 260 230 200
DUM/F 6-C2
DUM/F 6-C3
DUM/F 6-C4
DUM/F 6-D1
330 280 240
DUM/F 6-D2
DUM/F 6-D3
DUM/F 6-D4
DUM/F 6- 1
890 780 700 590 520
DUM/F 6- 2
DUM/F 6- 3

17
V 20 dition: 12 March · 2019 Operating Manual DUM/F 6-Servomotors
Radial forces
The endurance strength of the shaft and the bearing life are decisive for the permissible radial load.
Taking the endurance strength into consideration, FQis not permitted to be exceeded even during
dynamic processes (acceleration, braking).
DUM 6-A
100
150
200
250
300
350
400
450
500
0 10203040
x [mm]
F
Q
[N]
2000rpm
3000rpm
4000 rpm
4000 rpm
6000 rpm
9000rpm
DUM/F 6-C DUM/F 6-D DUM/F 6-E
6000 rpm
4000 rpm
4000rpm
2000 rpm
3000 rpm
300
400
500
600
700
800
900
1000
1100
1200
1300
1400
0 102030405060
x [mm]
FQ[N]
only for:
DUM/F-C1 with / without brake
DUM/F-C2 with / without brake
DUM/F-C3 without brake
only for:
DUM/F-C3 with brake
DUM/F-C4 with / without brake
400
600
800
1000
1200
1400
1600
1800
2000
2200
2400
0 20406080
x [mm]
F
Q
[N]
4500 rpm
4500 rpm
2000rpm
3000rpm
1000rpm
1500rpm
1000
1500
2000
2500
3000
3500
4000
0 20406080
x [mm]
FQ [N]
1000rpm
1500 rpm
2000rpm
3000rpm
4000rpm

18 Operating Manual DUM/F 6-Servomotors V 20 dition: 12 March · 2019
Connection system DUM/F 6-A...D
Encoder connection Connection to system Fan connection
Socket type 12-pin
rotatable angle socket
8-pin
rotatable angle socket
Connector plug
(2-pole + ground wire)
Recommended connector A ST A 021 FR01 12 0035 000 B ST A 108 FR05 08 0036 000 included in delivery
Pinning configuration
(view of motor connecting
pins)
5
6
12
7
8
1
311
4
10
2P
9
1
A
B
C
D
2
3
4
12
1 = L1
2 = N
= PE
Pin assignment
1- U1
2- P
3- W1
4- V1
A - brake + (if any)
B - brake – (if any)
C - temperature detector +
D - temperature detector -
1 - S4 SIN -
2 - S1 COS +
5 - R1 R F +
7 - R2 R F -
10 - S2 SIN +
11 - S3 COS -
Accessories
Encoder connection Connection to system
Cable sets
(shielded, trailing:
to customer spec.)
Cable connector 12-pin connector
A ST A 021 FR01 12 0035 000
8-pin connector
B ST A 108 FR05 08 0036 000
1- L1
2 - N
3 - P

19
V 20 dition: 12 March · 2019 Operating Manual DUM/F 6-Servomotors
Connection system DUM/F 6-E
Encoder connection Connection to system
Socket type 12-pin
rotatable angle socket
8-pin
rotatable angle socket
Connector plug
(3-pole + ground wire)
Recommended connector A ST A 021 FR01 12 0035 000 C ST A264 FR48 45 0001 000 included in delivery
Pinning configuration
(view of motor connecting
pins)
5
6
12
7
8
1
311
4
10
2P
9
21
U
W
V
+
-
1 = U
2 = V
3 = W
= PE
1
2
3
Pin assignment
U- U1
V- V1
W- W1
P - P
+ - brake + (if any)
- - brake – (if any)
1 - temperature detector +
2 - temperature detector -
1 - S4 SIN -
2 - S1 COS +
5 - R1 R F +
7 - R2 R F -
10 - S2 SIN +
11 - S3 COS -
Accessories
Encoder connection Connection to system
Cable sets
(shielded, trailing:
to customer spec.)
Cable connector 12-pin connector
A ST A 021 FR01 12 0035 000
8-pin connector
C ST A264 FR48 45 0001 000
1- U
2 - V
3 - W
4 - P

20 Operating Manual DUM/F 6-Servomotors V 20 dition: 12 March · 2019
Type code
xample: DU M 6- A 3 - 2 0 R9 6 - 000 A
DU B3 6- Z2 Z3 - X1 X2 X3 X4 - X5 X7
B3: Construction type::
M – flange, self-cooling
F – flange, enforced-cooling
Z2: Mounting window:
A - 55 mm C - 95 mm
D - 127 mm D - 194 mm
Z3: Overall length:
1, 2, 3, 4
X1: Voltage variant:
2 - for supply voltages Nfrom 400 V
X2: Holding brake:
0 – no brake
4 - permanent-field holding brake
X3: Measuring system:
A8 - ECI/EQI 1300 (Heidenhain)
AA - AD 34 (Hengstler)
I8 - ERN 1387 (Heidenhain)
IN - ERN 1185 (Heidenhain)
IR - SRS 50/52 K (Sick-Stegmann)
IW - SKS / SKM 36 (Sick-Stegmann)
R9 - Resolver Size 15 (2, 6 or 8-pole)
X4: Rated speed:
0 - 1,000 min-1
1 - 1,500 min-1
2 - 2,000 min-1
3 - 3,000 min-1
4 - 4,000 min-1
6 - 6,000 min-1
X5: Modifications:
000 - Standard
X7: Measuring system type, pin assignment (together with X3):
A - with X3 = R9: 2-pole resolver; standard pin assignment