Motor controller
Description
Type
SEC−ST−48−6−P01
Fitting and
installation
706 738
en 0606c
Contents and general instructions
DesignationSEC−ST−48−6−P01−EN. . . . . . . . . . . . . . . . . . . . .
Edition en 0606c. . . . . . . . . . . . . . . . . .
Original de. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . .
. . . . . . . . .
Part no. 706 738. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
o AG&Co.KG, D73726 Esslingen,
E Fest
Federal Republic of Germany, 2006
Internet: http://www.festo.com
E−Mail:service_international@festo.com
The reproduction, distribution and utiliz
ation of this docu
ment as well as the communicaton of its contents to others wi
thout express authorization is prohibited. Offenders will
be
held liable for the payment of damages. All rights reserved in
the event of the grant of a patent, utility module or design.
Festo SEC−ST−48−6−P01−EN en 0606c
I
Contents and general instructions
II
Festo SEC−ST−48−6−P01−EN en 0606c
Contents and general instructions
Contents
Designated use VII . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Target group VIII . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Service VIII . . . . . . . . . . . . . . . . . . . . . . .
Notes on the use of this m
General info
Procedure for corr
Important user instructions XVII
Trademarks XIX
Safety instructions XIX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
rmation on stepping motor systems IX . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
anual VIII . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ectly adjusting the stepping motor XIV . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1. System summar y 1−1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.1 Overview 1−3 . . . . . . . . . . . . . . . . . . . . . . . . . .
1.2 Performance characteristics 1−3 . . . . . . . . . . .
1.3Controller part 1−4 . . . . . . . . . . . . . . . . .
1.3.1 Brief description 1−4 . . . . . . . . .
1.4 Final output stage 1−4 . . . . . . . . . . . .
1.4.1 Brief description 1−4 . . . . . . . .
1.4.2 Internal monitoring1−4 . . . . . . . . . .
1.5 Displays1−5 . . . . . . . . . . . . . . . . . .
1.5.1 Ready−to−operate display 1−5 . .
1.5.2 Fault display 1−5 . . . . . . . . . . . .
1.6 User interfaces 1−6 . . . . . . . . . . .
1.6.1 Enable input 1−6 . . . . .
1.6.2 Direction input 1−7 . . .
1.6.3 Clock input 1−8 . . . . .
1.6.4 Fault output 1−9 . . .
1.7 Settings 1−10 . . . .
1.7.1 The step mode1−10 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.7.2 The current setting1−12 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.7.3 The current reduction I−red 1−13 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.7.4 Enable s
1.7.5 The
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
witch 1−13 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
buttons1−14 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . .
. .
Festo SEC−ST−48−6−P01−EN en 0606c
III
Contents and general instructions
2. Fitting 2−1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.1 Dimensions 2−3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.2 Current supply 2−5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.3 Electromechanics: front view2−6 . . . . . . . . . . . . . . . . . . . . .
3. Installation 3−1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.1 Material 3−3 . . . . . . . . . . . . . . . . . . . . . . . . . .
3.1.1 Manufacturer 3−3 . . . . . . . . . . . . .
3.1.2 Plug X1 for control cable 3−4 . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . .
3.1.3 Plug X2 for motor connection MTR−ST... 3−4 . . . . . . . . .
3.1.4 Plug X3 for power supply 3−4 . . . . . . . . . . . . . . . . . . . . . . .
3.1.5 PE connection of the SEC−ST 3−4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . .
. . . . . . . . . .
. .
3.2 Plug connectors and their pin assignments3−5 . . . . . . . . . . . . . . . . . . . . . . . . . .
3.2.1 X1 plug
3.2.2 Motor cable and current supply for the SEC−ST 3−6 . .
3.3Connecting the cables 3−7 . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.3.1 Overview of connections3−8 . . . . . . . . . . . . . . . . . . . . . .
3.3.2 SEC−ST complete system 3−9 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
for control cable KSPC−SECST−1.5 3−5 . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . .
. . . . . . . . . . . . . . . .
. . . . . . . . . . . .
. . . . . .
3.3.3Connecting the motor to the SEC−ST 3−9 . . . . . . . . . . . . . . . . . . . . . . . .
3.3.4 Connec
3.3.5 Connecting the SEC−ST to the controller (SPC2
3.4 PE protective conductor and screening connections3−11 . . . . . . . . . . . . . . .
ting the SEC−ST to the power supply 3−10 . . . . . . . . . . . . . . . . . .
00) 3−10 . . . . . . . . . . . . .
. . . .
3.4.1Connection instructions3−11 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.4.2 Elec
3.5 Measures for comp
trical isolation 3−11 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
lying with EMC guidelines 3−12 . . . . . . . . . . . . . . . . . . . . . . . .
4. Commissioning 4−1 . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.1Commissioning the SEC−ST 4−3 . . . . . . . .
IV
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Festo SEC−ST−48−6−P01−EN en 0606c
Contents and general instructions
5. Diagnosis and error treatment 5−1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.1 Fault messages of the SEC−ST 5−3
5.2 Fault functions of the SEC−ST 5−4 . .
A. Technical appendix A−1 . . . . . . . . . . . .
A.1 Technical specifications A−3 . . . . . . . .
A.1.1 SEC−ST−48−6−P01 A−3 . . . . . . . . .
A.1.2 Maximum ratings A−4 . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Festo SEC−ST−48−6−P01−EN en 0606c
V
Contents and general instructions
VI
Festo SEC−ST−48−6−P01−EN en 0606c
Contents and general instructions
Designated use
The SEC−ST−48−6−P01, referred to here as the SEC−ST, Smart
Electromotor Controller Stepper motor, has been designed for
use in control cabinets for controlling stepper motors in
2−string technology.
The SEC−ST must be operated in a safe working environment.
An EMERGENCY STOP circui
tem.
Operate the SEC−ST only under the permitted ambient condi
tions.
t must be installed for the sys
The SEC−ST may only be oper
ated in a stationary industrial or
commercial system. The electromagnetic resistance to inter
ference of the power electronics is not designed for operation
in mobile systems, in households or in firms which are con
nected directly to the low voltage network.
tall the SEC−ST screened and earthed in a control cabinet.
Ins
Otherwise, the electromagnetic compatibility (EMC) of the
power electronics cannot be guaranteed.
The SEC−ST may only be used as follows:
in accordance with designated use
in its original state
without any modifications by the
user
in faultless technical condition.
If additional commercially−available components such as sen
sors and actuators are connected, the specifiedli
mits for pres
sures, temperatures, electrical data, torques, etc. must not
be exceeded.
Please observe the standards specified in the releva
nt
chapters and comply with technical regulations, as well as
with national and local regulations.
Festo SEC−ST−48−6−P01−EN en 0606c
VII
Contents and general instructions
Target group
This manual is directed exclusively at technicians trained in
control and automation technology,
· who are dealing for the first time with stepper motor con
trollers
· or who already have experience of stepper motors.
Service
Please consult your local Festo service centre if you have any
technical problems.
Notes on the use of this manual
This manual will help you in successfully commissioning your
SEC−ST for the first time.
VIII
This manual contains important information and provid
es you
with the basic knowledge which you will require for operating
the SEC−ST correctly.
Most work steps in this manual are divide
· the description:
d into two parts:
Here you can learn important instructions and the aim of
each work step.
· the instructions:
Here you learn how to carry out the work steps.
Festo SEC−ST−48−6−P01−EN en 0606c
Contents and general instructions
General information on stepping motor systems
Description
Stepping motors are a special type of synchronous motor
triggered through electrical pulses from a required control
unit. Here, a pulse always
angle. This permits positioning without acknowledgement.
Due to their "digital" rotation, stepping motors are used as
switch mechanisms and in positioning technology. It should
be noted that the control system does not receive any kind of
acknowledgement that the motor has, in fact, performed its
step.
corresponds to the same rotational
Accuracy and resolution
The step angle depends on the structural form; for the two−
phase Festo stepping motors type MTR−ST, the angle is 1.8°
(+/−5%) in full step. A single step takes place when the two
coils receive full alternating current. Here, the stepping motor
performs a step of 1.8° each time the current to the coils al
ternates.
But it is also possible to supply the two coils simultaneously
with different current shares. The result is
1/8, 1/10 or 1/32 of a step, depending on the current share.
This allows considerable refinement in the maxi
tion of positions to which a stepping motor can run.
a 1/2, 1/4, 1/5,
mum resolu
Festo SEC−ST−48−6−P01−EN en 0606c
The smallest incremental path (resolution) on a positioning
axis is determine
steps per revolution) and the feed constant of the positioning
axis (determined by the diame
slope of the spindle).
d by the motor’s step angle (number of
ter of the input pinion or the
IX
Contents and general instructions
This can be calculated as follows:
Numberofstepsperrevolution +
Resolution +
Feedconstantoftheaxis @ Gearmultiplication
StepsńRevolution
360°
Motorstep.angle
Example
Motor step angle: 0.9° (+/− 5%) at half−step
Feed constant of the positioning axis:120mm/revolution
Gear multiplication: 1/4 ( gear reduction
i = 4 )
The above example results in a resolution of 0.075 mm per
step.
All positions that this motor−gear−axis combination can run t
are divisible by 0.075.
In contrast, if the motor runs in quarter step, the resolution is
0.0375 mm; in one−tenth step, even a resolution of
0.00375
mm per step would be possible. Axis play, circumferential
backlash of any gears and the tolerance of the stepping mo
tor itself
have to be calculated in. The stepping motor’s tole
rance must always be taken into account as the absolute va
lue of the full step.
This must be considered when very precise positioning as
signments are to be executed.
o
X
Festo SEC−ST−48−6−P01−EN en 0606c
Contents and general instructions
Basic information
Despite the simplicity of the stepping motors, it should be
mentioned that it is not a controller. The control system does
not receive
has, in fact, performed its step.
And so it is extremely important to dimension the motor using
its speed−torque characteristic curve. This ensures that the
applied load can, in fact, be moved by the motor with the
specif
If the motor loses a step, that is, if the applied load is greater
than the force the motor can produce, the part to be positio
ned is no longer in the desired position. Errors that must be
monitored in the overall system, such as through
ches, can thus occur.
Start−stop frequency
Another important variable in the use of stepping motors is
the so−called start−stop frequency. It is the frequency or
speed at which
loss of step, start and also stop again under the torque to be
provided.
any kind of acknowledgement whether the motor
ied acceleration and speed.
limit swit
the stepping motor can safely, that is, without
Festo SEC−ST−48−6−P01−EN en 0606c
Losses of step
much as when accelerating!
can occur when decelerating (stopping) just as
XI
Contents and general instructions
Resonance frequencies
Impressing of a fixed current for the maximum holding torque
of a stepping motor can cause the motor to tend to oscillate.
Since the
the set field within very narrow limits. If no load is applied,
the rotor oscillates beyond the targeted step due to the very
low inertia. If excitation of the next step takes place at an
unfavourable time, the system resonates.
The following possibilities exist to reduce the incidence of this
resonance.
stepping motor is a synchronous motor, it follows
In practice, one tries to put the start−stop fr
equency into a
higher area (ca. 200 Hz and higher), since stepping mo
tors in the lower frequency areas have more resonance
fre
quencies.
One can combat it by increasing the start−stop frequency
or through lower phase current.
Conversion from full−step to half−step o
r quarter−step ope
ration can also provide help.
It is helpful to always operate the motor with its nominal
load. If that is not
possible, the phase current should be
reduced.
XII
Festo SEC−ST−48−6−P01−EN en 0606c
Contents and general instructions
Phase current
Phase current is the current that flows through strand of a
winding. At the maximum phase current, the stepping motor
has its maximum hold
be adjusted to the load. That is, it does not always make
sense to set the motor’s maximum phase current. If the motor
is run without load or with a torque lower than its nominal
torque, it can also carry out steps too far or begin to resonate
(see above), which is equivalent to a loss of step.
The set phase current flows at all times through the active
coils of the mot
advantage of this is that the motor has a certain resting tor
que and can be loaded
still. Also, the motor is warmed even at standstill. If this hol
ding torque is not needed in standstill, it makes sense to
reduce the phase current when the motor is at standstill. The
Festo stepping motor controller SEC−ST−48−
option.
ing torque. The phase current should
or, even when the motor is standing still. An
with its holding torque during stand
6−P01 offers this
Festo SEC−ST−48−6−P01−EN en 0606c
With these attributes of the stepping motor considered, it
provides an economical positioning variant with adequat
precision.
e
XIII
Contents and general instructions
Procedure for correctly adjusting the stepping motor
Determining the possible speed with known load
If the torque of the load on the drive is known, the possible
speed can be determined from the speed−torque characteri
stic curve.
The
highest usable speed is the one where the resulting tor
que is about 80% of the maximum torque. Beyond that, the
motor’s loss of t
steps increases.
Resonance Increased incidence of resonance can be expected in full−step
ation. Since this always depends on the system, it cannot
oper
always be precisely determined where resonance will occur.
Here it is necessary t
In general, it is advantageous to run at half−step to reduce
resonance. Current should be reduced when the motor is run
without
onance and thus a loss of step.
orque is so great that the danger of losing
o test.
load. Current that is set too high can also cause res
XIV
Festo SEC−ST−48−6−P01−EN en 0606c
Contents and general instructions
Example
S1
S2
Fig.0/1: Upper graph S1 − full step / lower graph S2 − half step
M = Torque, n = Speed
Festo SEC−ST−48−6−P01−EN en 0606c
The characteristic curve shows the ma
ximum speed that can
be run at full or half step, depending on the set torque (in the
example around 1100 RPM at half step).
Determining the start−stop frequency
It is advantageous to set the start−stop frequency as high as
possible since resonance leading to losses of step can occur
especially in the lower
The start−stop frequency is increased until the drive loses
steps when starting. Then the start−stop frequency is reduced
again by a good 20% to ensure that no steps are lost during
acceleration. A starting value of 400 Hz for small drives and
around 200
Hz for large drives can be assumed.
frequency areas.
XV
Contents and general instructions
How can incidences of resonance be suppressed?
Tips and tricks!
· Half step instead of full step.
· Set phase current lower (to the value actually required).
· Operating frequencies not equal to resonance frequen
· Make the acceleration ramps steeper.
Half step here is better than full step. The two−phase step
ping motor shows generally good run characteristics at
half step.
While this reduces the system’s stiffness, it also reduces
its tendency to oscillate.
cies.
The operating frequency is often near the resonance fre
quency or is a mul
tiple of it. Small deviations from the
"critical" step frequency usually show good results.
The stepping motor is "pulled" through the critical areas
quickly and so does not tend so quickly to oscillate.
XVI
· Increase the friction (emergency solution)
Friction dampens the entire system, but useful torque is
lost.
Festo SEC−ST−48−6−P01−EN en 0606c
Contents and general instructions
Important user instructions
Danger categories
This manual contains instructions on the possible dangers
which may occur if the product is not used correctly. These
instructions are marke
shaded background and marked additionally with a picto
gram. A distinction is made between the following danger
warnings:
Warning
This means that failure to observe this instruction may
result in serious personal injury or damage to property.
Caution
This means that failure to observe this instruction may
result in personal injury or damage to property.
d (Warning, Caution, etc), printed on a
Festo SEC−ST−48−6−P01−EN en 0606c
Please note
This means that failure to observe this instruction may
result in damage to property.
The following pictogram marks passages in the text
describe activities with electrostatically sensitive compo
nents.
Electrostatically sensitive components may be damaged if
they are not
handled correctly.
which
XVII
Contents and general instructions
Marking special information
The following pictograms mark passages in the text contain
ing special information.
Pictograms
Information:
Recommendations, tips and references to other
information.
Accessories:
Information on necessary or useful accessories for the Festo
product.
Environment:
Information on environment−friendly use of Fes
sources of
to products.
XVIII
Text markings
· The bullet indicates activities which may be carried out in
any order.
1.Figures denote activities which must be carried out in the
numerical ord
er specified.
Hyphens indicate general activities.
Festo SEC−ST−48−6−P01−EN en 0606c
Contents and general instructions
Trademarks
All product names in this documentation are registered trade
marks. All trademarks in this documentation are only used for
identifying the relevant product.
Safety instructions
Please note
The relevant safety instructions and accident−prevention
regulations valid for each specific application must be
observed during installation, co
maintenance.
The following precautionary measures also apply without
claim to completeness:
· Regulations for setting up high−voltage systems up to
· Electrical equipment for machines.
· Equipping high−voltage systems with electronic operat
mmissioning and
1000 volts.
ing media.
Festo SEC−ST−48−6−P01−EN en 0606c
XIX
Contents and general instructions
XX
Festo SEC−ST−48−6−P01−EN en 0606c
System summary
Chapter 1
1−1Festo SEC−ST−48−6−P01−EN en 0606c
1. System summary
Contents
1.1 Overview 1−3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.2 Performance characteristics 1−3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.3Controller part 1−4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.3.1 Brief description 1−4 . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.4 Final output stage 1−4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.4.1 Brief description 1−4 . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.4.2 Internal monitoring1−4 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.5 Displays1−5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.5.1 Ready−to−operate display 1−5 . . . . . . . . . . . . . . . . . . . . .
1.5.2 Fault display 1−5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.6 User interfaces 1−6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.6.1 Enable input 1−6 . . . . . . . . . . . . . . . . . . . . . . .
1.6.2 Direction input 1−7 . . . . . . . . . . . . . . . . . . . . .
1.6.3 Clock input 1−8 . . . . . . . . . . . . . . . . . . . . . . .
1.6.4 Fault output 1−9 . . . . . . . . . . . . . . . . . . . . . .
1.7 Settings 1−10 . . . . . . . . . . . . . . . . . . . . . .
1.7.1 The step mode1−10 . . . . . . . .
1.7.2 The current setting1−12 . . . . . .
1.7.3 The current reduction I−red 1−13 . . . . .
1.7.4 Enable switch 1−13 . . . . . . . . . . . . . .
1.7.5 The buttons1−14 . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . .
. . . . . . . . . . . . . .
. . . . . . . . . . . . .
. . . . . . . . . . . . . . .
. . . . . . . . . . . . .
. . . . . . . . . .
. . . . . . . . . . . .
. . . . . . . . . . . . .
1−2
Festo SEC−ST−48−6−P01−EN en 0606c
1. System summary
1.1 Overview
The SEC−ST stepper motor controller is used for simple
commissioning of stepper motors in 2−string technology.
By means of digital inputs, contr
respect of the number of steps and the direction.
1.2 Performance characteristics
· Bipolar chopper driver
· Input voltage 24 V DC to 48 V DC
· Phase current can be set up to 6 A in 8 steps
· Automatic current reduction to 30 % of the set phase cur
rent can be switched on
· 1/1, 1/2, 1/4, 1/5, 1/8, 1/10 and 1/32 of a step possible
· Step frequency max. 40 kHz
· Manual movement with push buttons possible
· Protective function against excess temperature and short
circuit
· Error output
ol can be carried out in
Festo SEC−ST−48−6−P01−EN en 0606c
1−3
1. System summary
1.3 Controller part
1.3.1 Brief description
Communication with higher−order controllers, e.g. program
mable logic controllers (PLC) takes place via inputs and out
puts.
The inputs are completely electrically
other. This inputs can be actuated with either 5V or 24V.
(See section 1.6 User interfaces)
By means of push buttons, an indivi
carried out in both directions of rotation.
1.4 Final output stage
1.4.1 Brief description
The integrated final output stage can control up to 6A string
current. The string current can be set with the dip switch.
(see 1.7.2).
1.4.2 Internal monitoring
The end stage possesses an excess temperature cut−out, as
well as monitoring in the event of short circuit of the motor
strings between each other or against GND. (edition see 1.6.
User interfaces)
isolated from each
dual step or travel can be
1−4
Festo SEC−ST−48−6−P01−EN en 0606c
1. System summary
1.5 Displays
1.5.1 Ready−to−operate display
The blue ready−to−operate LED (Power) on the front of the
SEC−ST indicates the readiness to operate.
1.5.2 Fault display
A fault is shown by a red LED Error".
Festo SEC−ST−48−6−P01−EN en 0606c
1−5
1. System summary
1.6 User interfaces
1.6.1 Enable input
The controller is enabled via the Enable input.
Control
(e.g. SPC200)
Optocoupler energized = SEC enabled
SEC−ST−48−6−P01
Fig.1/1:
1−6
Please note
An incorrect connection may cause damage to the SEC−ST
or to the higher−order control.
· Please note the output levels of your higher−order con
trol.
+24V or +5V can be used as signal level.
Festo SEC−ST−48−6−P01−EN en 0606c
1. System summary
1.6.2 Direction input
The direction of rotation of the motor is determined via the
Direction input.
Control
(e.g. SPC200)
SEC−ST−48−6−P01
Optocoupler energized = direction +
Fig.1/2:
Please note
An incorrect connection may cause damage to the SEC−ST
or to the higher−order control.
· Please note the output levels of your higher−order con
trol.
+24V or +5V can be used as signal level.
Festo SEC−ST−48−6−P01−EN en 0606c
CLK
DIR
motor
step
Fig.1/3:
1
0
1
0
67 65
+
1−7
1. System summary
1.6.3 Clock input
The motor performs a step via the Clock input.
Control
(e.g. SPC200)
SEC−ST−48−6−P01
Falling edge
=
one step
Fig.1/4:
Please note
An incorrect connection may cause damage to the SEC−ST
or to the higher−order control.
· Please note the output levels of your higher−order con
trol.
+24V or +5V can be used as signal level.
1−8
CLK
DIR
motor
step
Fig.1/5:
1
0
1
0
67 65
+
Festo SEC−ST−48−6−P01−EN en 0606c
1. System summary
1.6.4 Fault output
The temperature of the controller is monitored. A fault is also
shown here in the event of a short circuit (red LED).
There is a fau
lt output for logical scanning.
SEC−ST−48−6−P01
_
Fig.1/6:
Caution
Note the maximum permitted voltage of + 30V DC and the
maximum permitted current of 30 mA at the fault output
Err+.
Connecting example
Festo SEC−ST−48−6−P01−EN en 0606c
Fig.1/7:
1−9
1. System summary
1.7 Settings
1.7.1 The step mode
The step mode can be set by the user by means of dip
switches 1, 2 and 3. The default value (as at factory) is set as
half step.
Fig.1/8:
1
2
3
1
2
3
1
2
3
1/1 step
1/2 step
1/4 step
1
2
1/5 step
3
1
1/8 step
2
3
1
1/10 step
2
3
1
1/32 step
2
3
1−10
Festo SEC−ST−48−6−P01−EN en 0606c
1. System summary
Step designation Number of steps per revolution
1/1 step 200
1/2 step 400
1/4 step 800
1/5 step 1000
1/8 step 1600
1/10 step 2000
1/32 step 6400
With a PLC from Festo (SPC200):
If actuation is made with a PLC from Festo (SPC200), only 1/1,
1/2, 1/4, 1/5, 1/8 and 1/10 of a step
will be supported.
Festo SEC−ST−48−6−P01−EN en 0606c
Please note
If 1/32 of a step is used, this will result in other positioning
paths.
1−11
1. System summary
1.7.2 The current setting
The 8 adjustable current values apply to the stepper motors
MTR−ST−42..., MTR−ST−57... and MTR−ST−87... from Festo.
Fig.1/9:
The setting is made with the dip switc
4
1.25 A
5
6
4
5
1.50 A
6
4
1.80 A
5
6
4
5
3.15 A
6
hes 4, 5 and 6.
4
5
6
4
5
6
4
5
6
4
5
6
4.70 A
5.00 A
5.50 A
6.00 A
1−12
Caution
Observe the maximum permitted holding current of your
stepping motor. Please refer to the data sheet of the rel
evant motor f
or the current settings.
Festo SEC−ST−48−6−P01−EN en 0606c
1. System summary
1.7.3 The current reduction I−red
The automatic current reduction can be activated with dip
switch 7. If there is no step signal for at least 80 ms, the string
current will be reduced to 30 % of the set current.
Switch 7 on = current reduction active (default value)
Fig.1/10:
Caution
With active current reduction, the holding torque of the
motor is reduced.
Note in particular with vertical applications.
1.7.4 Enable switch
Festo SEC−ST−48−6−P01−EN en 0606c
The motor current can be switched off with dip switch 8.
When the motor current is switched on again, the motor wind
ings will be energized with the current which was applied
immediately before it was switched off.
Switch 8 off = motor current off (Defa
Fig.1/11:
ult value)
1−13
1. System summary
1.7.5 The buttons
Buttons Step+ and Step With these buttons you can test the stepper motor.
When the Step+ button is pressed, the stepper motor starts
to turn.
The direction depends on the wiring of the motor
phases; with Festo MTR−ST: in a clockwise direction (view of
motor shaft). It thereby increases its rotational speed step by
step.
When the Step− button is pressed, the stepper motor turns in
the opposite direction.
Button Clock Si
mWith this button you can simulate the Input Clock".
Each time you push it, a step will be carried out. The button is
not debounced.
Button ResetPressin
outputs, displays and buttons are then without function. The
motor current is switched off. After releasing the button, the
SEC−ST is reinitialized and the motor is energized again.
Please note
The settings which you make on the SEC−ST do not become
active until you press the Reset button (or switching the
SEC−ST off and on
g this button, you can reset the SEC−ST. All the inputs,
again).
1−14
Festo SEC−ST−48−6−P01−EN en 0606c
Fitting
Chapter 2
2−1Festo SEC−ST−48−6−P01−EN en 0606c
2. Fitting
Contents
2.1 Dimensions 2−3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.2 Current supply 2−5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.3 Electromechanics: front view2−6 . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . .
. . . . . . . . . . .
2−2
Festo SEC−ST−48−6−P01−EN en 0606c
2. Fitting
2.1 Dimensions
70.3
106
Fig.2/1:Dimensions of the SEC−ST
Festo SEC−ST−48−6−P01−EN en 0606c
89
86
2−3
2. Fitting
Please note
Screening can be attached to the M4 earthing screws
intended for this purpose.
Fastening screws must not be used as earthing sc
rews.
The devices in this series are intended as compact units for
fitting into a control cabinet or onto a wall. The loss of power
h occurs in operation and the subsequent heating of the
whic
unit depends on the output. The SEC−ST is being cooled by
convection. There must be a gap of at least 3cm on all sides
for sufficient cooling.
2−4
3 cm
Festo SEC−ST−48−6−P01−EN en 0606c
2. Fitting
2.2 Current supply
Fig.2/2:
Power unit
4700 F / 100 V
Warning
· Use only PELV circuits as per IEC/DIN EN 60204−1 (Pro
tective Extra−Low Voltage, PELV) for the electrical supply.
Consider also the general requirements for PELV circuits
in accordance with IEC/DIN EN 60204−1.
· Use power supplies which guarantee reliable electrical
isolation of the operating voltage as per IEC/DIN EN
60204−1.
Festo SEC−ST−48−6−P01−EN en 0606c
By the use of PELV circuits, protect
ion against electric shock
(protection against direct and indirect contact) is guaranteed
in accordance with IEC/EN 60204−1 (Electrical equipment for
mach
ines, General requirements).
Caution
Serious damage to the device !
· Make sure the polarity is correct.
· Do not disconnect any cables before the power supply
to the system is switched off.
For rated output in the designated application ran
ge a power
unit with 48 V DC is required. The SEC−ST can also be oper
ated with 24 V DC. Losses in the dynamics of the stepper mo
tors must be taken into account here (see data sheet for the
stepper motors).
2−5
2. Fitting
8
With motors with rated current ţ 4,5 A and at the same time
high braking energies (recommendation) :
· Connect a capacitor of at least 4700 F / 100 V at the
power supply connection, in order to prevent exceeding
the permitted voltage (e.g. when
2.3 Electromechanics: front view
Button Step+
1
braking).
2 Button Step
3 Plug X1
1
2
4 LED Error
5 Button Clock Sim
6 Button Reset
7 Switches 1...8
3
8 Plug X2
9 Plug X3
4
aJ LED Power
Fig.2/3:Front view of the SEC−ST
Warning
Note the pin assignment on plug connector X3. The unit
may become seriously damaged if the connection ter
minals are swapped.
5
6
7
9
aJ
2−6
Festo SEC−ST−48−6−P01−EN en 0606c
Installation
Chapter 3
3−1Festo SEC−ST−48−6−P01−EN en 0606c
3. Installation
Contents
3.1 Material 3−3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.1.1 Manufacturer 3−3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.1.2 Plug X1 for control cable 3−4 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.1.3 Plug X2 for motor connection MTR−ST... 3−4 . . . . . . . . . . . . . . . . . . . . . .
3.1.4 Plug X3
3.1.5 PE connection of the
3.2 Plug connectors and their pin assignments3−5 .
3.2.1 X1 plug for control cable KSPC−SECST−1.5 3−5 . . . . . . . .
3.2.2 Motor cable and current supply for the SEC−ST 3−6 . . . . . . . . . . . . . . . .
3.3Connecting
3.3.1
3.3.2 SEC−ST complete s
3.3.3Connecting the motor to th
3.3.4 Connecting the SEC−ST to the power supply 3−10 . . .
3.3.5 Connecting the SEC−ST to the controller (SPC200) 3−10 . . . . . . . . . . . . .
3.4 PE prot
3.4.1Connection instructions3−11 . . . .
3.4.2 Electrical isolation 3−11 . . . . . . . . . . . . . .
3.5 Measures for complying with EMC guidelines 3−12 . . . . . . .
Overview of connections3−8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ective conductor and screening connections3−11 . . . . . . . . . . . . . . . . . . .
for power supply 3−4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SEC−ST 3−4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . .
the cables 3−7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ystem 3−9 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
e SEC−ST 3−9 . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . .
. . . . . .
. . . . . . . . . . .
. . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . .
3−2
Festo SEC−ST−48−6−P01−EN en 0606c
3. Installation
3.1 Material
3.1.1 Manufacturer
Caution
Incorrectly prepared cables may damage the electronics
and trigger off unexpected movements of the motor.
· Test every cable in accordance with the instructions in
the section Connecting the cables" (see 3.3). Make sure
that the cables are correct
ly connected and that the
plugs are provided with strain−relief.
Caution
Long lines reduce immunity to interference (E MC).
· Do not exceed the maximum permitted cable lengths:
Control cable: 30 m
Power supply cable: 10 m
Motor cable: 10 m
Festo SEC−ST−48−6−P01−EN en 0606c
Caution
Use only the cables listed below for connecting the system.
Only in this way can you guarantee the correct functioning
of the syst
Cable
KMTR−ST−5 Motor cable 5m 530071
KMTR−ST−10 Motor cable 10m 530072
KMTR−ST−x Motor cable xm
KSPC−SECST−1.5 Control cable to SPC200 530077
em.
Designation Part number
530073
(up to max. 10m)
3−3
3. Installation
3.1.2 Plug X1 for control cable
1 plug connector, 11−pin from Weidmüller, BLZ 3.5/11 SN SW,
order no. 161572, included in delivery.
3.1.3 Plug X2 for motor connection MTR−ST...
1 plug connector, 4−pin from Weidmüller, BLZ 5.00/4 SN SW,
order no. 159608, included in delivery.
3.1.4 Plug X3 for power supply
1 plug connector, 2−pin from Weidmüller, BLZ 5.00/2 SN SW,
order no. 162516, included in delivery.
3.1.5 PE connection of the SEC−ST
3−4
The PE connection of the SEC−ST (mains and motor side) is
made via an M4 threaded bolt.
Festo SEC−ST−48−6−P01−EN en 0606c
3. Installation
3.2 Plug connectors and their pin assignments
3.2.1 X1 plug for control cable KSPC−SECST−1.5
* Plug connector: Weidmüller, BLZ 3.5/11 SN SW
Fig.3/1:
Festo SEC−ST−48−6−P01−EN en 0606c
Pin
Brief description Meaning/remark
1 EN+24 Enable input + 24V (7 mA)
2 En+5 Enable input + 5V (10 mA)
3 En Enable input
4 Clk +24V Clock input + 24V (7 mA)
5 Clk +5V Clock input + 5V (10 mA)
6 Clk Clock input
7 Dir +24V Direction input + 24V (7 mA)
8 Dir +5V Direction input + 5V (10 mA)
9 Dir Direction input
10 Err+ Fault output + (max. 30 mA)
11 Err Fault output
Fig.3/2: Assignment of plug connector X1
3−5
3. Installation
3.2.2 Motor cable and current supply for the SEC−ST
Sub−D 9−pin
View of motor plug of
Festo stepper motor
type MTR−ST−...
Earthing band 6 mm
white
brown
green
yellow
grey
pink
Screening/Shield
GND brake +24V DC brake
Fig.3/3:Pin assignment of motor cable
Brief description Meaning/remark
Pin
1 String A Motor connection winding A start
2 String A/ Motor connection winding A end
3 String B Motor connection winding B start
String A
String A/
String B
String B/
+24...48VDC
GND
Weidmüller BLZ 5.00
View of SEC−ST
String A
String A/
String B
String B/
+24...48VDC
GND
3−6
4 String B/ Motor connection winding B end
Fig.3/4: Assignment of plug connector X2 (motor connection)
Pin
Brief description Meaning/remark
1 + 24...48 V DC Current supply + 24...+48 V DC
2 GND GND current supply
Fig.3/5: Assignment of plug connector X3 (current supply)
Festo SEC−ST−48−6−P01−EN en 0606c
3. Installation
3.3 Connecting the cables
Please note
Connection to the main power supply and the fitting of
mains switches, transformers, fuses and mains filters may
only be
Caution
· Do not connect any cables to the electronics and do not
· Check all cables once again before installation, as incor
· Make sure that the SEC−ST is connected to the protective
· Make sure that the screening cables of the motor are
carried out by a qualified electronics engineer.
disconnect any cables before the power supply to the
system is switched off. The electronics of the power
controller and the motor may otherwise be damaged.
rect connection assignments can cause serious func
tional impairment.
earth (PE) of the power supply unit.
connected to the earth connection of the SEC−ST before
you commission the motor.
Festo SEC−ST−48−6−P01−EN en 0606c
Caution
· Place the motor cables and the signal cables at a
distance from each other where possible, e.g. in cable
channels with intermediate walls. Use only screened
cables for the connection to the motor and cables
twisted in pairs for signal lines.
In this way you can avoid electromag
netic interference which
might impair reliable operation of the system.
3−7
3. Installation
Please note
· Make sure that the cables are provided with strain relief.
In the case of boom arm and multi−axis operation, cables
which are subject to mechanical stress must be laid in a
drag chain.
3.3.1 Overview of connections
3−8
Fig.3/6: Complete struc tu r e of SEC−ST with motor and
controller
Festo SEC−ST−48−6−P01−EN en 0606c
3. Installation
3.3.2 SEC−ST complete system
A complete SEC−ST system is shown in Fig. 3/6 on the previ
ous page. The following components are required for operat
ing th
e SEC−ST:
Power unit 24...48 V DC / PELV voltage source
SEC−ST−48−6−P01
Motor (MTR−ST−...)
Cable for controller (KSPC−SECST−1.5)
Motor cable (KMTR−ST−5, 10 or x)
Controller (PLC e.g
SPC200−SMX−1)
3.3.3Connecting the motor to the SEC−ST
1.Insert the 9−pin sub−D plug for the power cable into the
appropriate socket on the motor.
2. Connect the motor cables to the screw termi
plug.
3. Connect the PE cable of the motor to the earth terminal PE.
4. If applicable, connect the brake cables to the controller.
5. Check all
plug connectors once again.
. SPC200 with stepper motor card
nal of the
Festo SEC−ST−48−6−P01−EN en 0606c
3−9
3. Installation
3.3.4 Connecting the SEC−ST to the power supply
1.Make sure that the power supply is switched off.
2. Insert the plug into socket X3 of the SEC−ST.
3. Connect the PE cable of the mains
terminal PE.
3.3.5 Connecting the SEC−ST to the controller (SPC200)
1.Make sure that the power supply is switched off.
2. Insert plug X1 into the socket on the SEC−ST.
3. Connect the earthing strap of the
terminal PE.
4. Insert the 15−pin sub−D plug connector into the stepper
motor control card socket.
supply to the earth
cable to the earth
3−10
Festo SEC−ST−48−6−P01−EN en 0606c
3. Installation
3.4 PE protective conductor and screening connections
3.4.1Connection instructions
The screening of the motor cable is connected to the central
PE connection point of the SEC−ST.
The mains PE connector is also connected at this
With greater lengths, special EMC protective measures must
be observed.
3.4.2 Electrical isolation
In the design of the SEC−ST, great importance has been
placed on high resistance to interference. For this reason indi
vidual function blocks are electrically isolated from each
other. Signal transmission within the SEC−ST is carried out by
an opto coupler.
star point.
Warning
All PE cables must be connected before commissioning for
reasons of safety.
The mains PE connection is connected to the central PE
connection point
Make sure that the earth connections between devices and
the mounting plate are of sufficiently large dimensions in
be able to discharge HF interference.
order to
of the SEC−ST.
Festo SEC−ST−48−6−P01−EN en 0606c
3−11
3. Installation
3.5 Measures for complying with EMC guidelines
Caution
Long lines reduce immunity to interference (E MC).
· Do not exceed the maximum permitted cable lengths:
Control cable: 30 m
Power supply cable: 10 m
Motor cable: 10 m
If correctly fi
tted and if Festo cables are used for all the con
nections, the controllers of the SEC−ST product family will
comply with the relevant regulations (see Declaration of Con
formity).
Interference emission and resistance to interference of a
device always depend on the complete design
of the drive,
which consists of the following components:
the power supply
the SEC−ST
the motor
the electromechanics
the design and type of wiri
ng
the higher−order controller.
3−12
Festo SEC−ST−48−6−P01−EN en 0606c
Commissioning
Chapter 4
4−1Festo SEC−ST−48−6−P01−E N en 0606c
4. Commissioning
Contents
4.1Commissioning the SEC−ST 4−3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4−2
Festo SEC−ST−48−6−P01−EN en 0606c
4. Commissioning
4.1 Commissioning the SEC−ST
· Set the string current in accordance with chapter 1.7.2
Setting the current."
· Make sure that the current set is adapted to the stepper
motor.
Caution
If the current is set too high, the motor may become over
heated.
· Set the desired step angle in accordance with chapter
1.7.1 The stepper mode."
· Check that the step angle set is taken into consideration
by your position controller. (See also the manual for the
stepper motor indexer module for the SPC200).
Festo SEC−ST−48−6−P01−EN en 0606c
When all connections have been made, the power supply can
be switched on. The connected motor may perf
orm a step at
this stage. For this reason we recommend that the motor be
disconnected from the load in order that a test run can be
carrie
d out.
4−3
4. Commissioning
When the power supply is switched on, the blue power LED
lights up. If the red fault LED lights up, you must switch the
unit off i
mmediately and check the connections (see chapter
5 Diagnosis and error treatment").
Buttons Step+ and Step With these buttons you can test the ste
pper motor.
When the Step+ button is pressed, the stepper motor starts
to turn. The direction depends on the wiring of the motor
phases
; with Festo MTR−ST: in a clockwise direction (view of
motor shaft). It thereby increases its rotational speed step by
step.
When the Step−
button is pressed, the stepper motor turns in
the opposite direction.
Button Clock SimWith this button you can simulate the Input Clock".
Each time you
push it, a step will be carried out. The button is
not debounced.
Button ResetPressing this button, you can reset the SEC−ST. All the inputs,
outputs, disp
lays and buttons are then without function. The
motor current is switched off. After releasing the button, the
SEC−ST is reinitialized and the motor is energized again.
Please note
The settings which you make on the SEC−ST do not become
active until you press the Reset button (or switching the
SEC−ST off and on
again).
4−4
Festo SEC−ST−48−6−P01−EN en 0606c
Diagnosis and error treatment
Chapter 5
5−1Festo SEC−ST−48−6−P01−EN en 0606c
5. Diagnosis and error treatment
Contents
5.1 Fault messages of the SEC−ST 5−3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.2 Fault
functions of the SEC−ST 5−4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5−2
Festo SEC−ST−48−6−P01−EN en 0606c
5. Diagnosis and error treatment
5.1 Fault messages of the SEC−ST
The SEC−ST possesses a red LED which indicates a fault.
LED Error lights up red when:
there is excess temperature:
The final stage is overheated and is
there is a short circuit:
There is a short circuit between the motor strings or
against GND.
switched off.
Festo SEC−ST−48−6−P01−EN en 0606c
5−3
5. Diagnosis and error treatment
5.2 Fault functions of the SEC−ST
Fault Cause Possibilities
Power LED does not light up No supply voltage Check supply cable
Fault LED lights up red Short circuit at motor output Check motor
Final stage overheated Winding resistor of motor too
Motor does not move, power
LED lights up blue, red fault LED
is out
Motor loses steps Frequency too high Check characteristic curve of
Dip switch 8 off Dip switch 8 on
Motor cable defective Check motor cable
Brake not activated Open brake by applying
Motor cannot give torque
required
Check power unit
Check motor cable
small
Motor defective, check
Check fitting of controller
24V DC
motor, check which torque
can be given
Reduce frequency
(controller)
Fig.5/1:
5−4
Festo SEC−ST−48−6−P01−EN en 0606c
Technical appendix
Appendix A
A−1Festo SEC−ST−48−6−P01−E N en 0606c
A. Technical appendix
Contents
A.1 Technical specifications A−3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
A.1.1 SEC−ST−48−6−P01 A−3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
A.1.2 Ma
ximum ratings A−4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
A−2
Festo SEC−ST−48−6−P01−EN en 0606c
A. Technical appendix
A.1 Technical specifications
A.1.1 SEC−ST−48−6−P01
Feature Value
Part number 548 945
Rated current I
Rated voltage V
Operating mode Bipolar chopper driver
Operating mode 1/1 step= 200 steps per revolution
Setting the step With the dip switch
Step frequency Max. 40 kHz
Current reduction 0 or 70% can be selected with dip switch
Manual movement With buttons Step+ and Step
LED Blue (power), red (fault)
Button RESET, Step+, Step, CLK Sim.
Typ e of connection Screw plug terminals
Method of fastening TS 35 DIN hat rail
Ambient temperature 0... + 40°C (... + 50° at I < 4.7 A)
Storage temperature 10 ... +60°C
Relative humidity 95 % (non condensing) Protect from humidity, no moisture condensation
Protection class IP20
Certification CE symbol
n
n
1.25 A ~ 6 A adjustable
24...48 V DC
1/2 step= 400 steps per revolution
1/4 step= 800 steps per revolution
1/5 step= 1000 steps per revolution
1/8 step= 1600 steps per revolution
1/10 step= 2000 steps per revolution
1/32 step= 6400 steps per revolution
Fig.A/1:
Festo SEC−ST−48−6−P01−EN en 0606c
A−3
A. Technical appendix
A.1.2 Maximum ratings
Inputs
Plugs Pin V
in
[V DC]
En +24 20...26 V 28 V 5.4...17.2 mA 22 mA
En +5 4...6 V 7.5 V 4.8...8 mA 8.4 mA
En − 0 V −−− −−− −−−
Clk +24 20...26 V 28 V 5.4...17.2 mA 22 mA
X1
X3
Clk +5 4...6 V 7.5 V 4.8...8 mA 8.4 mA
Clk − 0 V −−− −−− −−−
Dir +24 20...26 V 28 V 5.4...17.2 mA 22 mA
Dir +5 4...6 V 7.5 V 4.8...8 mA 8.4 mA
Dir − 0 V −−− −−− −−−
+ 24...48 21...50 V 51 V 0...6.5 A 7 A
GND 0 V −−− −−− −−−
Outputs
Plugs PIN V
[V DC]
Vin max.
I
in
Iin max.
[V DC]
V
out
max.
out
I
out
I
max.
out
[V DC]
A−4
X1
X2
Err+ 4...26 V 30 V 5...20 mA 30 mA
Err− −−− 0 V −−− −−−
String A 24...48 V 51 V 0...6.5 A 7 A
String A/ 24...48 V 51 V 0...6.5 A 7 A
String B 24...48 V 51 V 0...6.5 A 7 A
String B/ 24...48 V 51 V 0...6.5 A 7 A
Festo SEC−ST−48−6−P01−EN en 0606c
Loading...