ATR Temvar GDE2 User manual

Instruction Manual
for
3-Phase 1 Q-Power Controller
Temvar GDE2
AT Industrie-Elektronik GmbH
Siempelkampstr. 50
D-47803 Krefeld
Phone: [phone]
Fax: [phone]
Internet: www.msr-elektronik.com
E-Mail: [email protected]
TABLE OF CONTENTS
1 SAFETY AND APPLICATION NOTES FOR DRIVE CONVERTERS..............................................................2
2 DEVICE DESCRIPTION..................................................................................................................................3
2.1 General.......................................................................................................................................................3
2.2 Device Description .....................................................................................................................................3
2.3 Ambient Conditions....................................................................................................................................5
2.4 System Conditions .....................................................................................................................................5
3 PRODUCT OVERVIEW...................................................................................................................................6
3.1 Device Table ..............................................................................................................................................6
3.2 Dimensions of Chokes and Devices...........................................................................................................7
4 DEVICE CONNECTION...................................................................................................................................8
4.1 Connection Diagram...................................................................................................................................8
4.2 Sequence for Switching On/Off..................................................................................................................8
4.3 Terminal Assignment..................................................................................................................................9
4.4 Assembly..................................................................................................................................................11
4.4.1 Danger.............................................................................................................................................11
4.4.2 Mechanical Design...........................................................................................................................11
4.4.3 Wiring Instructions...........................................................................................................................11
5 LAYOUT PLANS ...........................................................................................................................................12
5.1 Circuit Diagram.........................................................................................................................................12
5.2 Equipment Configuration..........................................................................................................................13
5.3 Component Mounting Diagram for Electronics PCBs...............................................................................15
5.4 Potentiometer Settings.............................................................................................................................17
5.5 LED Displays............................................................................................................................................18
6 FUNCTIONAL DESCRIPTION OF THE INPUTS AND OUTPUTS ...............................................................19
6.1 Analog Inputs ...........................................................................................................................................19
6.2 Analog Outputs.........................................................................................................................................20
6.3 Control Inputs and Signal Outputs ...........................................................................................................21
7 FUNCTIONAL DESCRIPTION ......................................................................................................................23
7.1 Setpoint Value Integrator..........................................................................................................................23
7.2 Speed Controller ......................................................................................................................................24
7.3 Current Limit.............................................................................................................................................24
7.4 Current Controller.....................................................................................................................................25
7.5 Firing Pulse Formation.............................................................................................................................25
7.6 Thyristor Outputs......................................................................................................................................26
7.7 Electronics Supply....................................................................................................................................26
7.8 Field Supply..............................................................................................................................................26
7.9 System Power Supply Monitoring.............................................................................................................27
7.10 Tacho Monitoring......................................................................................................................................27
7.11 Fan Monitoring .........................................................................................................................................27
8 INSTALLATION.............................................................................................................................................28
8.1 Dangers....................................................................................................................................................28
8.2 Recommended Procedure .......................................................................................................................29
9 OPTIMISATION.............................................................................................................................................30
10 FAULT OCCURRENCE.................................................................................................................................31
Updated edition: A0254_06 - Date: July 8, 2009/KB

Temvar GDE2
July 08, 2009 2
D 96.091101E
1 SAFETY AND APPLICATION NOTES FOR DRIVE CONVERTERS
(According to the 72/73/EC Low-voltage Guideline)
10.25.96/HX/PT/BLY
1. General
Depending on their protection class, drive converters may have
non-isolated and live conductors, possibly moving or rotating
parts, and hot surfaces.
There is danger of severe personnel or equipment damage if the
required cover is inadmissibly removed, the unit is used in an
inadmissible application, improperly installed or operated.
Refer to the documentation for further information.
All work concerning transportation, installation, and
commissioning as well as maintenance is to be performed by
qualified expert personnel (take also note of the IEC 364 and/or
DIN VDE 0100 and national accident prevention regulations).
Expert personnel for electrical devices
Personnel, which is based on his/her professional training,
experience and knowledge of the applicable standards and
capable to judge the tasks to be performed and to recognize
possible sources of danger.
Personnel trained for electro-technical operation
Personnel informed by the expert personnel for electrical
devices regarding the tasks assigned to him/her and the
possible danger occurring at improper acting’s and who is
trained if required and instructed about the required safety
mechanisms and protective measures.
2. Intended use
Drive converters are components supposed to be included into
electrical equipment or machines.
When installing the drive converter into a machine, its
commissioning (i.e. taking up its intended operation) is
prohibited until it is ascertained that the machine conforms to the
regulations described by the EC guideline 93/44/EC (Machine
Guideline). Take note of EN 60204.
Commissioning (i.e. taking up its intended operation) is only
allowed if the Electromagnetic Compatibility guideline
(89/336/EC) is observed.
The drive converters fulfil the requirements of the 73/23/EC
Low-voltage Guideline. Drive converters are subject to the
harmonized standards of the prEN 50178/DIN VDE 0160 in
association with EN 60439-1/VDE 0660 part 500 and EN
60146/VDE 0558.
The specifications and the data concerning the connection
conditions are stated on the rating plate and in the
documentation of the component. Meeting these data and
conditions is compulsory.
3. Transport and storage
The notes regarding transport, storage and appropriate
operation must be observed.
Climatic conditions must be complied with as detailed by prEN
50178.
4. Setting up
Setting up and cooling of the devices must be made according
to the rules described in the corresponding documentation.
Drive converters are to be protected against inadmissible
stress. Particularly, no components may be twisted and/or no
isolation distances may be changed. Touching of electrical
components and contacts is to be prevented.
Drive converters include components, which can be damaged
by electrostatic discharge. When handled improperly, these
components can be easily damaged. Electrical components
may not be damaged or destroyed by using mechanical force
(this may endanger health).
5. Electrical connection
The valid national accident prevention regulations (e. g. VGB4)
must be observed when working on drive converts which are
connected to the supply voltage.
The electrical set-up has to be performed according to the
relevant regulations (e.g. conductor diameter, fusing,
protective conductor connection). Furthermore, the
documentation contains notes concerning this subject.
Notes relevant to a proper EMC-conforming set-up (e. g.
screening, earthing, arrangement of filters, and cable routing)
are to be found in the documentation of the drive converters.
These notes must always be observed even when working
with drive converters with the CE mark. The manufacturer of
the plant or of the machine is responsible for the observance
of the required limit values as defined by the EMC regulations.
6. Operation
If applicable, plants fitted with drive converts must be equipped
with additional monitoring and safety devices according to the
currently valid safety regulations, e. g. law concerning work
equipment, accident prevention regulations, etc. Modifications
of the drive converters using the operating software are
admissible.
Touching of equipment parts that are subject to voltage in
operating conditions and of wire connections is not allowed
directly after disconnecting the supply voltage. There is the
danger of still charged capacitors! Fore this, all relevant safety
markings on the drive converter must be observed.
During operation, covers and doors must be kept shut.
7. Maintenance
The manufacturer’s documentation must be observed.
These safety notes must be kept in a safe place!

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July 08, 2009 3
2 DEVICE DESCRIPTION
2.1 General
Three-phase power controllers from the GDE series are compact devices for armature feeding of speed-
regulated direct current drives up to 700 A.
The device concept is characterized by the compact design.
The enclosed, galvanized housing and intelligent terminal assignment ensure that electromagnetic
compatibility of the device is excellently supported (see Section 4).
The main power connection covers the range from 210 to 550 V without switchover.
The electronics power supply is 230 V 50/60 Hz for all devices. Synchronization of the electronics power
supply with the main power supply is not necessary.
The model specification lists the main features of the device, e.g.
GDE2/15
max. output current 15 A
series 2
1-quadrant device
three-phase current connection
direct current control device
2.2 Device Description
The power section comprises a thyristor bridge without circulating current in standard modular
technology. The supply connections X3 are located on the top, the outputs and electronics connections
X4 and X1, on the bottom of the devices. The electronics consist of a closed-loop controller, an open-
loop controller PCB, and a power supply unit.
2.2.1 Closed-loop Controller PCB GDE2 A0114xx
This can be accessed by unscrewing the top plate. This area houses the electronic terminals
X1 (setpoint and actual values, enable and signal outputs) and X2 (potential terminals and
auxiliary inputs), and everything that is needed for installation (potentiometers, component
mounting points, LED signals). The following circuit groups are located on this printed circuit
board:
A) Setpoint value integrator
B) Actual speed value alignment
C) Speed controller with current limiting
D) Current controller
E) Signal outputs for speed > 0, current limit reached, field current > 0 and device stand-by .

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2.2.2 Open-loop Controller PCB GDE2 A0095xx
This is located on the left sidewall.
The following circuit groups are located on this printed control board.
A) Switchover logic
B) Current measurement
C) DC/AC conversion limitation
D) Firing pulse formation
E) On-off logic in case of power system failure
F) Firing pulse output stages
2.2.3 Power Supply Module
Devices 15 A - 270 A GDE2 A0033xx
Devices 380 A - 700 A GDE2 A0112xx
For devices up to 270 A this module is mounted on the right-hand wall.
The following circuit groups are located on the module (A0033xx).
A) Electronics power supply with miniature fuses F1 - F4 (see circuit diagram on page 12)
B) Field current monitoring
C) Generation of synchronous voltage
D) Power system monitoring
E) Temperature monitoring
F) Armature voltage acquisition
G) Overload protection switch with suppressor circuit for thyristors
For devices over 380 A the module (A0112xx) is located under the hinged cover. The overload
protection switch with suppressor circuit is housed on a separate PCB directly above the
thyristors.
The main elements such as the 60 Hz bridge and miniature fuses for the electronics power
supply can be accessed by lifting up the closed-loop controller PCB. Otherwise there is nothing
on these PCB's that would need to be adjusted for installation.
Danger
Dangerous voltage is present even when the system switch of the power controller is
open. The control module and supply modules contain a number of dangerous live
circuits.
Failure to observe the instructions given in this operating manual can cause death,
serious injury to persons and damage to equipment.

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July 08, 2009 5
2.3 Ambient Conditions
The specified nominal device currents are valid up to a maximum ambient temperature of
40°C. Above this level, a reduction in the device c urrent of 1% per °C must be allowed for. The
absolute temperature limit is 55°C. Heat concentration above the devices should be avoided.
The devices have protection type IP 00, meaning that they have to be enclosed in control
cabinets or closed control housings.
The surrounding air must be free of electrically conductive dust particles and chemically
aggressive vapors. Vibrations can destroy the devices.
2.4 System Conditions
The devices work in a voltage range of 230 to 500 V ± 10%/50Hz. For operation connected to
a 60 Hz mains power supply, the JP2 bridge must be fitted on the open-loop controller PCB.
The device is ready for operation approx. 200 ms after connecting the electronics power
supply. Until then the closed-loop controllers and pulse generator are inhibited. The signal
"stand-by" is only given after this interval. Closed-loop controller enable is internally inhibited
until the main power is connected.
The devices require a mains power source with U
K
= 4% at nominal device current. This is
achieved by preconnecting the recommended commutation chokes DD15-700.
For the electronics and fan supply an auxiliary voltage of 230 V ±10%, 50/60 Hz is required.
Attention! The power controller is not suitable for an operation at earth-free supply systems
(IT systems). Please do not hesitate to ask for customized execution when required.

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3 PRODUCT OVERVIEW
3.1 Device Table
Type Input
Current/fuse Output Current/fuse
Power
loss
Current
consumption
electronics
Input
choke
GDE2/15
GDE2/30
GDE2/60
GDE2/90
GDE2/130
GDE2/190
GDE2/270
GDE2/380
GDE2/500
GDE2/700
12 A
25 A
49 A
74 A
107 A
156 A
221 A
312 A
410 A
574 A
16 A
35 A
63 A
80 A
125 A
160 A
250 A
400 A
450 A
630 A
15 A
30 A
60 A
90 A
130 A
190 A
270 A
380 A
500 A
700 A
150 W
200 W
300 W
320 W
350 W
630 W
760 W
1100 W
1400 W
2000 W
0,2 A
0,2 A
0,2 A
0,2 A
0,6 A
0,6 A
0,6 A
1 A
1 A
1 A
DD 15
DD 30
DD 60
DD 90
DD130
DD190
DD270
DD380
DD500
DD700
3 x For 500V connection 2 x in series
Shared data:
Supply voltage - main power : 207 - 550 V / D 230 - 500 V ±10%
Supply voltage - electronics : 207 - 253 V / 0,2 A E 230 V ±10%
Supply voltage - field supply : max. 400 V / E 400 max.
Frequency of supply voltage : 48 - 63 Hz
Output - field supply : 0.9 x UE / DC / max. 7 A
From GDE2/130 : 0.9 x UE / DC/ max. 15 A

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July 08, 2009 7
3.2 Dimensions of Chokes and Devices
For 15 - 90 A devices
Type Rated
a.c. a b c d e f
DD15 12 A 123
70 125
4,8 123
49
DD30 24 A 153
74,5 150
4,8 153
54,5
DD60 48 A 180
100,5 175
7,0 180
70,5
DD90 72 A 180
120 175
7,0 180
90
GDE2-15
GDE2-30
GDE2-60
GDE2-90
For 130 - 700 A devices
Type Rated
AC a b c d e f g h
DD130 160 A 219
150
160
201
115,5
136
90,5
7x12
DD190 160 A 267
170
200
249
133 176
103 7x12
DD270 315 A 316
195
235
292
138 200
98 10x16
DD380 315 A 316
200
235
292
152 200
112 10x16
DD500 500 A 316
215
235
292
164 200
124 10x16
DD700 630 A 352
230
270
328
184 224
144 10x16
GDE2/130 GDE2/380
GDE2/190 GDE2/500
GDE2/270 GDE2/700

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4 DEVICE CONNECTION
4.1 Connection Diagram
Danger
Incorrect connection of the device can lead to damage or destruction.
4.2 Sequence for Switching On/Off
Switching on
1. Field supply X3: 4 + 5
2. Electronics supply X3: 6 + 7
3. Main power X3: 1 + 2 + 3
4. Closed-loop controller enable X1: 10 + 11
5. Setpoint value X1: 1 or 3 or 4
Points 2 to 5 can be switched together, as the device is fitted with an internal inhibition of
approx. 200 ms after the electronics supply has been switched on. The "stand-by" signal is
also only given after this interval, however.
Point 1 must be switched on at least one second earlier than point 3.
The electronics supply can remain switched on permanently, it does not have to be switched
on and off with the drive.

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July 08, 2009 9
Switching off
1.) Setpoint X1: 1 or 3 or 4
2.) At standstill closed-loop controller enable X1: 10 + 11
3.) Main power X3: 1 + 2 + 3
4.) Field supply X3: 4 + 5
5.) Electronics supply
Points 1 and 2 can be switched together.
Points 3 to 5 can be switched together, but at least one second after point 2.
The electronics supply must not be switched off. The motor is safely isolated when points 1 - 4
have been switched off.
4.3 Terminal Assignment
X1: Electronics plug-in terminal 14-pole
1 Input setpoint value integrator max. ± 10 V. Input resistance 100 K.
2 Output setpoint value integrator max. ± 10 V. Output resistance 44 Ohm.
3 Setpoint value input max. + 10 V. Input resistance 44 K.
Filter time constants 22 ms.
4 Setpoint value input max. + 10 V. Input resistance 44 K.
Filter constants 22 ms.
5 Closed-loop controller ground
6 Closed-loop controller ground
7 Actual value input max. - 30 V. Input resistance 12 K.
8 Actual value input max. - 90 V. Input resistance 30 K.
9 Actual value input max. - 180 V. Input resistance 48 K.
10 L+, potential-free auxiliary voltage + 24 V for closed-loop controller enable, signal
outputs and auxiliary electronics. Load capacity max. 50 mA.
11 Input closed-loop controller enable via optocoupler + 18 to 30 V corresponds to >
12.5 V corresponds to closed-loop controller enable. Input resistance 3K3.
12 Output operational signal. + 24 V corresponds to "device stand-by".
Max. load capacity 20 mA.
13 Output operating signal. + 24 V corresponds to "drive turning".
Max. load capacity 20 mA.
14 L-, reference point of potential-free auxiliary voltage 24 V for closed-loop controller
enable, signal outputs and auxiliary electronics. Load capacity 50 mA.
X2: Electronics plug-in terminal 9-pole
1 Output + 15 V or + 10 V stabilized for auxiliary electronics and setpoint value
formation.
Max. load capacity 30 mA. The voltage can be determined using the jumper
(+15/+10).
2 Closed-loop controller ground
3 Output – 15 V or - 10 V stabilized for auxiliary electronics and setpoint value
formation. Max. load capacity 30 mA. The voltage can be determined using the
jumper (-15/-10).

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July 08, 2009 10
4 Output current actual value. Nominal device current corresponds to + 10 V.
Output resistance 220 Ohm.
5 Auxiliary input to current controller. + 10 V corresponds to 100% current setpoint
value.
Input resistance 44 K. Filter time constants 2.2 ms.
6 Input for external current limit setting + or - 10 V corresponds to 100% (R5 right
stop) current limit for positive speed setpoint value and drive operation.
Input resistance 4K7.
7 Input for external current limit setting for 4Q-device (R6 left stop).
Input resistance 4K7.
8 Signal output "current limit“ . + 24 V corresponds to device at current limit.
Max. load capacity 20 mA.
9 Signal output "field current“. + 24 V corresponds to field current larger than 0.2 A.
For devices above 380 A, field current larger than 0.4 A
Max. load capacity 20 mA.
Main power connections X3 + X4
Main current
supply
X3: 1 + 2 + 3
Field
supply
X3: 4 + 5
Electronics
supply
X3: 6 + 7
Armature
connection
X4: 1 + 2
Field
connection
X4: 4 + 5
GDE2-15 4
2
* 2.5
2
* 2.5
2
* 4
2
* 2.5
2
*
GDE2-30 4
2
* 2.5
2
* 2.5
2
* 4
2
* 2.5
2
*
GDE2-60 16
2
* 2.5
2
* 2.5
2
* 16
2
* 2.5
2
*
GDE2-90 16
2
* 2.5
2
* 2.5
2
* 35
2
* 2.5
2
*
GDE2-130 20 x 3/M8
** 4
2
* 2.5
2
* 20 x 5/M8 ** 4
2
*
GDE2-190 20 x 3/M8
** 4
2
* 2.5
2
* 20 x 5/M8 ** 4
2
*
GDE2-270 20 x 5/M8
** 4
2
* 2.5
2
* 20 x 5/M8 ** 4
2
*
GDE2-380 40 x 5/M10
** 4
2
* 2.5
2
* 40 x 5/M10 ** 4
2
*
GDE2-500 40 x 5/M10
** 4
2
* 2.5
2
* 40 x 5/M10 ** 4
2
*
GDE2-700 40 x 5/M10
** 4
2
* 2.5
2
* 40 x 5/M10 ** 4
2
*
* = Line-up terminals ** = Conductor rails

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4.4 Assembly
4.4.1 Danger
Incorrect lifting can lead to injury and damage to the equipment.
The device should only be lifted by qualified personnel using suitable equipment.
The device must be assembled in accordance with safety regulations (e.g. DIN, VDE)
and all other relevant national or local regulations. The device must be properly
grounded, with sufficient phase-to-ground clearance and corresponding short-circuit
protection, to ensure that a high level of operating safety is maintained.
4.4.2 Mechanical Design
For reasons of electromagnetic compatibility
(EMC), the devices have a galvanized steel
housing. For the same reason, a galvanized
mounting plate is recommended, along with
connecting the ground lead to a copper bus
connected to the mounting plate via a broad,
conductive surface area (see construction
suggestions).
In order to ensure an unimpeded flow of cooling
air, an interval of at least 100 mm above and
below the device must be kept clear of
obstruction.
Failure to observe this may lead to the device
overheating!
The main power fuses must be ultra fast
blowing semiconductor fuses.
4.4.3 Wiring Instructions
All leads connected to terminal strips X1 and X2
must be shielded. The shielding should be firmly
attached using terminals, clips, or binders,
across a broad contact surface on the bus bar
provided for that purpose. Analog signal leads
should only be grounded at one point. Leads
with binary control signals can be grounded at
several points. The wiring paths should be kept
short and the electronics wiring should be
strictly isolated from the main current wiring.
(see the construction suggestions).
The closed-loop controller ground should be
connected to the protective circuit by a short
2.5
2
stranded wire.

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5 LAYOUT PLANS
5.1 Circuit Diagram

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5.2 Equipment Configuration
Thyristor module:
GDE2-15 3 x MCC 19-16io8B
GDE2-30 3 x MCC 19-16io8B
GDE2-60 3 x MCC 44-16io8B
GDE2-90 3 x MCC 44-16io8B
The miniature fuses for the electronic supply are
located on the supply module.
This module can be accessed when the closed-
loop controller PCB is lifted out the way in the
direction of the arrow.
X1: Electronics terminal strip
Main function
X2: Electronics terminal strip
Main function
X3: Input terminals
Main power
X4: Output terminals
Main power
Thyristor module:
GDE2-130 3 x MCC 95-16io8B
GDE2-190 3 x MCC 95-16io8B
GDE2-270 3 x MCC 132-16io8B
The miniature fuses for the electronics supply
are located on the supply module.
This module can be accessed when the closed-
loop controller PCB is lifted out of the way in the
direction of the arrow.
X1: Electronics terminal strip
Main function
X2: Electronics terminal strip
Auxiliary function
X3: Input terminals
Main power
X4: Output terminals
Main power

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Thyristor module:
GDE2-380 3 x MCC 170-16io8B
GDE2-500 3 x MCC 255-16io8B
GDE2-700 6 x MCC 312-16io8B
The miniature fuses for the electronics supply
are located on the supply module.
This module can be accessed when the closed-
loop controller PCB is lifted out of the way in the
direction of the arrow.
X1: Electronics terminal strip
Main function
X2: Electronics terminal strip
Auxiliary function
X3: Input terminals
Main power
X4: Output terminals
Main power
Danger
Dangerous voltage is present even when the system switch of the power controller is
open. The control module and supply modules contain a number of dangerous live
circuits.
Failure to observe the instructions given in this operating manual can cause death,
serious injury to persons, and damage to equipment.

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July 08, 2009 15
5.3 Component Mounting Diagram for Electronics PCBs
Open-loop controller PCB Closed-loop controller PCB
GDE2 GDE2
(A0095xx) (A0114xx)

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SUPPLY PCB
For devices up to 270 A
SUPPLY MODULE
For devices above 380A

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July 08, 2009 17
5.4 Potentiometer Settings
+B Setpoint value integrator. Acceleration time for positive setpoint value.
Left stop approx. 1.5 seconds, right stop approx. 15 seconds.
R1 Acceleration time from 0 to 10 V.
-B Setpoint value integrator. Delay time for positive setpoint value. Effect as with + B.
R2
V
p
Proportional gain for the speed controller. Left stop = x2.
Right stop = x20. This area is determined by R9 as delivered.
R3
n25-turn spindle potentiometer for speed adjustment. Setting range approx. 1 : 4
R4 Right-hand rotation means higher speed.
+I Current limit for motor-driven operation and positive speed setpoint value or
generator-driven operation and negative speed setpoint value. Left-hand stop
R5 causes current limit 0, right-hand stop 100% of the nominal device current.
-I R6 Current limit for 4 Q device (left-hand stop).
n > 0 Threshold of operating signal 0 to 15% of the maximum speed can be set.
R7 Right stop is equal to 15%.

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5.5 LED Displays
STAND-BY
LED lights up when all internal electronic voltages are okay.
As soon as the closed-loop controller is enabled, the system voltage is also
checked.
Main power with clockwise rotating field, phase failure and tacho monitoring.
CLOSED-LOOP CONTROLLER ENABLE
LED lights up when the device is ready and the closed-loop controller on terminal
11 is enabled by the + 24 V signal.
n > o LED lights up if the drive rotates faster than the threshold value set on the
potentiometer n > 0.
Current direction "+"
LED indicates 1Q operation.
Current direction "-"
This signal is only in use for the 4 Q device.
Current limit
LED lights up if the motor is driven at the set current limit for at least 15 seconds,
i.e., the speed controller is operated up to the stop, which is set with the
potentiometer +I.
Tacho
LED lights up when the tacho voltage is not at the ratio to the armature voltage
specified.
System power
LED lights up if the system power is not with clockwise rotating field, in the event
of phase failure or overheating of the heat sink.
⊗
⊗⊗
⊗
⊗
⊗⊗
⊗
⊗
⊗⊗
⊗
⊗
⊗⊗
⊗
⊗
⊗⊗
⊗
⊗
⊗⊗
⊗
⊗
⊗⊗
⊗
⊗
⊗⊗
⊗

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6 FUNCTIONAL DESCRIPTION OF THE INPUTS AND OUTPUTS
6.1 Analog Inputs
The analog inputs may only be connected using shielded leads. The shield should only be
connected to the grounding system at one point, across a broad contact surface in close
proximity to the device. For reasons of electromagnetic compatibility, these leads may never
be operated open-circuit, they must be connected with respect to the electrical ground when
the device is switched off.
Setpoint value integrator
The input voltage range is ± 0 to 10 V.
Setpoint value inputs
The two inputs are equal and are added together.
The maximum input voltage range is ± 0 to 10 V.
Input resistance and filter time constant are 44 K-
Ohm and 22 ms respectively.
Actual value inputs
The potentiometer "speed adjustment" is a 25-
speed spindle potentiometer with a setting range
of approx. n = 4.
Right-hand stop means highest speed.
The filter time constant is selected at a very low
level of approx. 2.2 ms for reasons of dynamics,
the tacho voltage must therefore be very clean.
Inputs "external current limit"
The maximum motor current is set using
potentiometer +I (right stop 100% nominal device
current).
An external voltage of 0 to 10 V at X2: 6 means 0
to 100% motor current.
The input is equipped with an active rectifier and
can therefore process + 10 V or - 10 V (input
resistance 4K7).
The set current limit can also be reduced by
connecting a resistor to ground.
There is only a negative current limit for the 4 Q
device. For this device, the potentiometer -I is set
to the left stop.

Temvar GDE2
July 08, 2009 20
Auxiliary input - current controller
A voltage of + 10 V at terminal X2: 5 means
nominal device current.
Caution!
This auxiliary setpoint value is added to the main
setpoint value from the speed controller. The
current limit must be set low enough to ensure that
the sum of the two setpoint values does not
exceed + 10V. This input has a very low filter time
constant (2.2 ms), the voltage at terminal X2: 5
must therefore be very clean.
6.2 Analog Outputs
Setpoint value integrator
The output is protected against reverse
interference voltage by a lowpass filter and pull-up
diodes. This leads to a minimum influence of load
variation, which is however completely irrelevant if
the load is constant (e.g. with a connection to
setpoint value inputs X1: 3 or 4).
Actual current value
With a nominal device current, a voltage of + 10 V
is supplied.
Output resistance 220 Ohm.