Sacher Lasertechnik LB2001 User manual

Operation Manual LB2001 Sacher Lasertechnik
GmbH
_____________________________________________________________________________________________________
Adress:
Sacher Lasertechnik GmbH
Rudolf-Breitscheid-Str. 1-5
D-35037 Marburg, Germany
Tel.: [phone]
Fax.: [phone]
EMail: [e-mail]
Web: http://www.sacher-laser.com
Sacher Lasertechnik, LLC
5765 Equador Way
Buena Park, CA 90620, USA
Tel.: [phone]
Fax: [phone]
Email: sales@sacher-
laser.com
Page 1
Version:
Preliminary 2011-01-01
Operating Manual
Servo Controller LB2001

Operation Manual LB2001 Sacher Lasertechnik
GmbH
_____________________________________________________________________________________________________
Adress:
Sacher Lasertechnik GmbH
Rudolf-Breitscheid-Str. 1-5
D-35037 Marburg, Germany
Tel.: [phone]
Fax.: [phone]
EMail: [e-mail]
Web: http://www.sacher-laser.com
Sacher Lasertechnik, LLC
5765 Equador Way
Buena Park, CA 90620, USA
Tel.: [phone]
Fax: [phone]
Email: sales@sacher-
laser.com
Page 2
Version:
Preliminary 2011-01-01
1.Basic Safety Instructions
The LB2001 is a versatile instrument that can be used in a variety of feedback control
applications. However, the LB2001 is not intended for fail-safe operation in hazardous
environments or life-threatening situations. The user assumes full responsibility for correct
and safe usage of the LB2001 in accordance with any applicable laws, codes, regulations, and
standards pertaining to their specific application. Sacher Lasertechnik is not liable for any
consequential damage due to misapplication or failure of the LB2001.
Electrical Fuse & Voltage Selection
The LB2001 is pre-configured at the factory to work with the AC mains voltages for your
region. Before supplying electrical power to the LB2001, confirm that the power entry
module located on the rear panel is installed with the proper fuses and set to the correct wall-
plug AC voltage.
AC Mains*
V~ Tolerance V~ Fuse Rating** Module Voltage Switch Settings
115 90-120 250V
0.5 A T 230
230 207-264 250V
0.25 A 115
*50/60 Hz only. ** Module accept only dual metric 5 x 20 mm fuses.
To operate at another AC mains voltage, follow the procedure below:
• With a small screwdriver, pry open fuse cover of the power entry module on rear
panel. The AC power cord must be removed from module socket before opening fuse cover.
• Carefully pull out the voltage selection wheel from the module. Re-insert so that
correct AC voltage setting is facing outwards.
• Pull out the two fuse holders located below voltage selection wheel. Insert correct
fuses into each fuse holder and re-insert back into module. Install fuse holders so that arrows
on fuse cover and fuse holder align.
• Snap fuse cover back into place. Verify that the correct AC mains voltage can be read
through fuse panel before attaching the AC power cord.
Warning: Carefully measure output voltages from the LB2001 before connecting to a
device that can be damaged by over-voltage.

Operation Manual LB2001 Sacher Lasertechnik
GmbH
_____________________________________________________________________________________________________
Adress:
Sacher Lasertechnik GmbH
Rudolf-Breitscheid-Str. 1-5
D-35037 Marburg, Germany
Tel.: [phone]
Fax.: [phone]
EMail: [e-mail]
Web: http://www.sacher-laser.com
Sacher Lasertechnik, LLC
5765 Equador Way
Buena Park, CA 90620, USA
Tel.: [phone]
Fax: [phone]
Email: sales@sacher-
laser.com
Page 3
Version:
Preliminary 2011-01-01
Table of Symbols
Alternating current
Caution – risk of electrical shock
Fuse
It is well known that WEEE pollutes the environment by
releasing toxic products during decomposition. The aim of the
European RoHS directive is to reduce the content of toxic
substances in electronic products in the future.
The intent of the WEEE directive is to enforce the recycling of
WEEE. A controlled recycling of end of life products will
thereby avoid negative impacts on the
environment.

Operation Manual LB2001 Sacher Lasertechnik
GmbH
_____________________________________________________________________________________________________
Adress:
Sacher Lasertechnik GmbH
Rudolf-Breitscheid-Str. 1-5
D-35037 Marburg, Germany
Tel.: [phone]
Fax.: [phone]
EMail: [e-mail]
Web: http://www.sacher-laser.com
Sacher Lasertechnik, LLC
5765 Equador Way
Buena Park, CA 90620, USA
Tel.: [phone]
Fax: [phone]
Email: sales@sacher-
laser.com
Page 4
Version:
Preliminary 2011-01-01
2.Customer Support
Information and advice about the performance or operation of Sacher Lasertechnik
Group
products is available from our web site and our applications engineers.
For quickest response ask for ‘Technical Support’ and have your model and serial number
available. Support is available by:
Sacher Lasertechnik
Group
Rudolf-Breitscheid-Str. 1-5
35037 Marburg, Germany
Tel: [phone] – 0, Fax: [phone] - 299
[e-mail]
or
5765 Equador Way
Buena Park, CA 90620
USA
The LB2001 is designed to be maintenance free. No user-serviceable parts are
inside the unit. No further calibrations are necessary for the LB2001 to meet its
accuracy specifications over the lifetime of the product. Opening the instrument
case voids the warranty and exposes to user to hazardous voltages that are
present inside the instrument case.
Cleaning instructions: Instrument case can be safely cleaned with slightly
moistened cloth soaked in water or isopropyl alcohol.

Operation Manual LB2001 Sacher Lasertechnik
GmbH
_____________________________________________________________________________________________________
Adress:
Sacher Lasertechnik GmbH
Rudolf-Breitscheid-Str. 1-5
D-35037 Marburg, Germany
Tel.: [phone]
Fax.: [phone]
EMail: [e-mail]
Web: http://www.sacher-laser.com
Sacher Lasertechnik, LLC
5765 Equador Way
Buena Park, CA 90620, USA
Tel.: [phone]
Fax: [phone]
Email: sales@sacher-
laser.com
Page 5
Version:
Preliminary 2011-01-01
For service or repairs:
Tel.: [phone], Fax: [phone]
1. Telephone Sacher Lasertechnik customer service department at ([phone],
which will determine if the equipment requires service, repair, calibration, or replacement.
Factory office hours are 8:00 am-4:00 pm CET.
2. If the unit must be returned to Sacher Lasertechnik, ask for a Return Merchandise
Authorization (RMA) from customer service. Never send any unit back to Sacher
Lasertechnik without a Return Merchandise Authorization (RMA).
3. Return the unit, postage prepaid, to Sacher Lasertechnik. Do not forget to write the
RMA on the shipping label. Sacher Lasertechnik will refuse and return any package that does
not bear an RMA.
4. Pack the unit in its original shipping material (if possible) with at least 1 inch of
compressible packing material. Be sure to include an ownership tag and a description fully
detailing the defect and the conditions under which it was observed.
5. After repair, the equipment will be returned with a repair report. If the equipment was
within specifications, a test set-up fee will be charged to the customer. If the equipment is not
under warranty, the customer will be invoiced for the cost appearing on the repair report.
6. Sacher Lasertechnik is responsible for shipping the unit back to the customer if the
unit is under warranty. Shipping damage is not covered by this warranty, and shipping
insurance, which Sacher Lasertechnik recommends, is at the customer’s expense.

Operation Manual LB2001 Sacher Lasertechnik
GmbH
_____________________________________________________________________________________________________
Adress:
Sacher Lasertechnik GmbH
Rudolf-Breitscheid-Str. 1-5
D-35037 Marburg, Germany
Tel.: [phone]
Fax.: [phone]
EMail: [e-mail]
Web: http://www.sacher-laser.com
Sacher Lasertechnik, LLC
5765 Equador Way
Buena Park, CA 90620, USA
Tel.: [phone]
Fax: [phone]
Email: sales@sacher-
laser.com
Page 6
Version:
Preliminary 2011-01-01
Warranty
Sacher Lasertechnik GmbH warrants its LB2001 to be free of material and workmanship
defects for one year from the date of original shipment. This warranty is in lieu of all other
guarantees expressed or implied, including any implied warranty of merchantability or fitness
for any particular purpose. Sacher Lasertechnik shall not be liable for any special, incidental
or consequential loss.
During the warranty period, Sacher Lasertechnik will repair or replace the unit, or issue credit,
at our option, without charge. Sacher Lasertechnik’ liability shall not in any case exceed the
cost of correcting defects in the products as explained here, and this service is the sole
remedy of the buyer.
This warranty does not apply to defects caused by abuse, accident, modifications,
Acts of God, or to use of the product for which it was not intended.
Sacher Lasertechnik shall not be liable for damages resulting from the use of the
product, nor shall be responsible for any failure in the performance of other items to
which the purchased product is connected or the operation of any system of which
the purchased product may be a part. The LB2001 should not be used in a manner
not specified by the manufacturer.

Operation Manual LB2001 Sacher Lasertechnik
GmbH
_____________________________________________________________________________________________________
Adress:
Sacher Lasertechnik GmbH
Rudolf-Breitscheid-Str. 1-5
D-35037 Marburg, Germany
Tel.: [phone]
Fax.: [phone]
EMail: [e-mail]
Web: http://www.sacher-laser.com
Sacher Lasertechnik, LLC
5765 Equador Way
Buena Park, CA 90620, USA
Tel.: [phone]
Fax: [phone]
Email: sales@sacher-
laser.com
Page 7
Version:
Preliminary 2011-01-01
3.Prepare for Use
This chapter gives an overview of the front panel controls and connectors of the LB2005
servo controller and gives all information that is necessary to put the instrument into operation
and connect external devices.
3.1. Frontpanel Tour
The front panel of the LB2005 consists of the 7 segment displays hardkeys and the
incremental rotation encoders.. Brief explanations on the controls rear panel can be found on
the next pages
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
G
H
I
J
K

Operation Manual LB2001 Sacher Lasertechnik
GmbH
_____________________________________________________________________________________________________
Adress:
Sacher Lasertechnik GmbH
Rudolf-Breitscheid-Str. 1-5
D-35037 Marburg, Germany
Tel.: [phone]
Fax.: [phone]
EMail: [e-mail]
Web: http://www.sacher-laser.com
Sacher Lasertechnik, LLC
5765 Equador Way
Buena Park, CA 90620, USA
Tel.: [phone]
Fax: [phone]
Email: sales@sacher-
laser.com
Page 8
Version:
Preliminary 2011-01-01
1
2
3
6
7
8
9
A
5
4
The detailed functions are:
Bias voltage level. The position of the LED signal indicates the position of the bias
voltage level relative to the +/-10V operation range of the LB2001
Save Switch remote indicator. When “Save” is pressed all settings will be stored in a
EEPROM
Unit indicator for PI Corner frequency
Acquire Buttons: These buttons are used to acquire lock. Table 2 shows
the function for each switch position.
The position of the Green LED signal indicates the position of the integrator level
relative to the +/-10V operation range of the LB2001.
The position of the Red LED signal indicates the position of the Error level relative to
a +/-50mV voltage range. The locked system should always be in the the +/-50mV window.
Filter parameter display
Display indicators. Shows which parameter could be adjusted with the rotary switch.
Filter Frequency Adjustment: Depending on the setting of the Low Pass / High Pass
Selection Switch, this knob adjusts
The low pass filter frequency of the high pass filter path

Operation Manual LB2001 Sacher Lasertechnik
GmbH
_____________________________________________________________________________________________________
Adress:
Sacher Lasertechnik GmbH
Rudolf-Breitscheid-Str. 1-5
D-35037 Marburg, Germany
Tel.: [phone]
Fax.: [phone]
EMail: [e-mail]
Web: http://www.sacher-laser.com
Sacher Lasertechnik, LLC
5765 Equador Way
Buena Park, CA 90620, USA
Tel.: [phone]
Fax: [phone]
Email: sales@sacher-
laser.com
Page 9
Version:
Preliminary 2011-01-01
K
B
C
D
E
F
G
H
I
J
Polarity switch for PT1 and DT1 filter unit
Corner frequency (CF) / Attenuator selection switch
Filter selection switch.
Sweep Center (Output Offset): This knob adjusts the offset voltage of the signal from
Output. The offset voltage can be adjusted from the negative voltage limit (fully
counter clockwise) to the positive voltage limit (fully clockwise). See the section
Setting Output Voltage Limits in Chapter 3 for more details on setting the output voltage
limits.
Sweep Span: This knob controls the attenuation of the Sweep In signal. Attenuation is
near linear from zero (Off, fully counter-clockwise) to unity gain (fully clockwise).
This knob is used to adjust the amplitude of the sweep input signal.
Gain: This adjustment knob controls the overall feedback gain of the loop filter from
-40 dB (fully counter clockwise) to +40 dB (fully clockwise) with a 1dB step
resolution. The gain value is displayed above.
LF Gain Limit: This switch controls the low frequency gain limit (LFGL) of the loop
filter. The value of low frequency is displayed above. This knob is only active when
the Acquire switch is in LFGL mode. See the section Filter Transfer Functions in
Chapter 3 for details.
Display section PI corner frequency (left) , Low Frequency Gain Limit (middle)
Gain (right)
P-I Corner: This switch sets the proportional-integral (P-I) corner frequency of the
filter. The corner frequency is displayed above. See the section Filter Transfer
Functions for details.
Offset Adjustment (Bias): This adjustment knob controls a stable offset voltage with a
16 bit resolution that can be added to the voltage of input signal. This offset can be
adjusted over 10 V with a resolution of <1mV. The offset voltage changes linearly
with <1mV per step. The selected offset is displayed above.

Operation Manual LB2001 Sacher Lasertechnik
GmbH
_____________________________________________________________________________________________________
Adress:
Sacher Lasertechnik GmbH
Rudolf-Breitscheid-Str. 1-5
D-35037 Marburg, Germany
Tel.: [phone]
Fax.: [phone]
EMail: [e-mail]
Web: http://www.sacher-laser.com
Sacher Lasertechnik, LLC
5765 Equador Way
Buena Park, CA 90620, USA
Tel.: [phone]
Fax: [phone]
Email: sales@sacher-
laser.com
Page 10
Version:
Preliminary 2011-01-01
1
2
3
4
3.2. Rear Panel Tour
Input A (non inverting input), The error signal is generated from the voltage
(A – B) applied to the BNC input connector
USB Remote Interface.
Input B (inverting input), The error signal is generated from the voltage applied to the
BNC input connector
Output (LP): This low pass BNC output is the control signal from the proportional-
integral (P-I) filter, going to the filter section and summed with the sweep and
modulation signals.
1
2
3
4
5
6
7
8
9
A
B
C
D