GS-DC200 Family
STEPPER MOTOR CONTROL AND DRIVE SYSTEM FAMILY
DESCRIPTION
TheGS-DC200 seriesisafamilyofsingleEurocard
boards that contain allthe logicnecessary to operate a stepper motor, including the instructions decoding, the step timing generation, the storage of
the program to be executed. The motor interface
can deliver phase current up to 2.5A.
The boardscanbe used asa standalonecomplete
motion control system or they can be driven by a
central host computer.
TheGS-DC200family isbuilt around theGS-C200,
GS-C200S, GS-D200, GS-D200S modul es, (see
the relevant data sheet) and it retains all the features of these modules.
SELECTION CHART
Ordering Number
GS-DC200 GS-C200+GS-D200
GS-DC200S GS-C200+GS-D200S
GS-DC200SS GS-C200S+GS-D200S
Controller
Sequencer Driver
Instruction
Set Commands
25 2.0
25 2.5
29 2.5
Phase
Current (A)
ABSOLUTE MAXIMUM RATINGS
Symbol Parameter Value Unit
V
T
T
hop
June 1994 1/7
DC Supply Voltage
s
Storage Temperature Range
stg
Max Operating Heatsink Temperature (GS-D200/200S)
42 V
–40 to +105 °C
+85 °C
GS-DC200 Family
ELECTRICALCHARACTERISTICS (T
Symbol Parameter Test Conditions Min Typ Max Unit
V
V
I
t
cpw
t
rpw
DC Supply Voltage
s
Quiescent Supply Current
I
s
Logic Input Voltage
V
i
Logic Output Voltage
o
Programmable Phase Current
ph
Chopper Frequency
f
c
Clock Pulse Width
Reset Pulse Width (Internal)
MOTION CHARACTERISTICS
Speed Range 10 to 10000 steps
Speed Resolution 10 steps
Ramp Length 1 to 999 steps
Ramp Resolution 1 step
Positioning Range (GS-DC200/S) 0 to 9999999
Positioning Range (GS-DC200SS) –8388608 to
SingleMovement Range 1 to 999999 steps
Positioning Resolution 1 step
Positioning Repeatibility ± 0 step
Program Storage Capability 119 Bytes
+8388607
=25°C and VS=24V unless otherwise specified)
amb
12 40 V
Low
High 2
Low
High 2
GS-DC200
GS-DC200S/SS
COMMUNICATION PORT CHARACTERISTICS
SIGNAL LINES 3(TXD, RXD, GND)
BAUD RATERANGE 110to 9600
FORMAT 1 StartBit
7 Data Bit
2 Stop Bit
Odd Parity
150 mA
0.8
5
0.8
5
2
2.5
17 kHz
5 µs
500 µs
V
V
V
V
A
A
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Figure 1. GS-DC200, GS-DC200S and GS-DC200SS Block Diagram
GS-DC200 Family
Fig. 2 - GS-DC Stepper MotorDriver/Controller Board
Dimensionsin mm
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GS-DC200 Family
Fig. 3 - GS-DC200, GS-DC200Sand GS-DC200SS Schematic Diagram
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GS-DC200 Family
GS-DC FAMILYBUSCONNECTOR PINSDESCRIPTION
The GS-DC family uses a 32 pin (16+16) DIN 41612-VG95324 male connectoranda RS-232 connector.
DIN BUS CONNECTOR(J1)
Pin
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
Row a
Signal
Ground Not used
Ground Not used
Ground Power driver enable input
Ground Power driver control input
Ground Half/Full step select
Ground User input3
Ground User input2
Ground User output 3
Ground User input1
Ground User output 2
Ground End-of-travel switch
Ground User output 1
Ground Home switch
Ground Prog. underexecution output
Not used Not used
Not used Not used
Not used Not used
Not used Not used
Not used Not used
Not used Not used
Phase D output Phase D output
Phase C output Phase C output
Phase B output Phase B output
Phase Aoutput Phase Aoutput
Step enable input Stop enable input
Ramp in execution logicoutput Ramp inexecution logic output
Motor moving Motor moving
+5V output +5V output
Supply voltage Supply voltage
Supply voltage Supply voltage
Supply ground Supply ground
Supply ground Supply ground
Row c
Signal
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GS-DC200 Family
RS-232 CONNECTOR (J2 - DB9)
Pin 1
Pin 2
Pin 3
Pin 7
Ground
Received data input
Transmitteddata output
Ground
GS-DC FAMILYHARDWAREAVAILABLE COMMANDS
Dip switchconfiguration selection (0=OFF 1=ON)
S1 S2 S3 Address Protocol
000–
1001
0102
1103
0014
1015
0116
1117
S4 S5 S6 Baud rate
000 110
100 150
010 300
110 600
0 0 1 1200
1 0 1 2400
0 1 1 4800
1 1 1 9600
Point-to-point
Multipoint
Multipoint
Multipoint
Multipoint
Multipoint
Multipoint
Multipoint
Note: Switchposition 9is not used.
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S7 Checksum
1
0
S8 Stand alone operation
1
0
S10 RS232 TXD pull-down
0
1
Rx
Disable
Enable
Enable
Disable
Not connected
Connected
Phase peak current programming
GS-DC200 Family
USERNOTES
To correctly operate the GS-DC boards family,it is
recommended to read the following data sheets:
GS-C200/200S; GS-D200/200S; GS-C200 PROG.
Supply Voltage
The recommended operating maximum supply voltagemustinclude the ripple voltage onthe Vssupply
rail and it must not exceed 40V to avoid permanent
damage to the board.
The boardshave internal capacitors connected between the supply and ground pins to assure the
electrical stability. These capacitors cannot handle
high values of current ripple and they would be
permanently damagedif the voltage source impedance is notadequately low.
The use of a l ow ESR , high current ripple,
470µF/50V capacitor located as close as possible
to the board isrecommended. Suitableunits are the
Sprague type 672 D or 678 D, the RIFAtype PEC
126 or any equivalent unit.
Board Protections
The GS-DC200 board is protected against occasional or permanent short circuits to the supply
voltage of the phase output pins.
The GS-DC200S and GS-DC200SS are protected
also against short circuits to ground or to another
phase output.
For the GS-DC200Sand GS-DC200SS the protection is of the latching type i.e. when an overload
occurs, the board is automatically disabled. To restart the operations, the supply voltage must be
switchedoff forat least 100 ms.
Motor Connection
When long wires are needed to connect a remote
motor, it is recommended to use twistedpair cables
with a proper cross section to minimize DC losses
and RFI problems.
Phase Current Programming
The maximum output current/phase can be programmed by changing the value of the Rxresistor.
The factory setting is formaximum current of
1 A GS-DC 200
2 A GS-DC200S / GS-DC200SS.
The new valueof Rxresistor fora differentvalue of
maximum phase current I (A) can be calculated
according to the following formulas:
GS-D200
I > 1,07
Rx = [
10 – I
(0.993 ∗ I) –1
]kΩRx ≥ 8.2KΩ
I < 1,07
Rx = [
I
1– (0.993 ∗ I)
]kΩ
GS-D200S
I > 2,11
10 −(0.33 ∗ I)
Rx = [
(0.473 ∗ I) –1
]kΩ Rx ≥ 50KΩ
I < 2,11
Rx = [
I
3.03– (1,43I)
]kΩ
The maximum programmed current must not exceed 2.0A for the GS-DC200 and 2.5A for the
GS-DC200S/GS-DC200SS.
Thermal Characteristics
The maximum power dissipation occurs on the
GS-D200/GS-D200S modules usedon the boards.
The thermal resistancecase-to-ambient of the integral heatsink of these modules is 5°C/W. This
meansa50°C temperature increase oftheheatsink
if the internal power dissipation is10W.
The maximum allowed heatsink temperature is
85°C.Therefore, accordingto theambient temperature and/or the internal power dissipation, forced
ventilation may be required.
Programming
To correctly program motion sequences, see the
GS- C200/200S and/or GS-C 200 PROG data
sheets.
Information furnished is believed to be accurate and reliable. However, SGS-THOMSON Microelectronics assumes no responsibility for the
consequences of use of such information nor for any infringement of patentsor otherrights of thirdparties which mayresult from its use. No
license is grantedby implication or otherwise underany patentor patent rightsof SGS-THOMSONMicroelectronics. Specification mentioned
in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied.
SGS-THOMSONMicroelectronics products are not authorized for useascritical components in lifesupportdevicesor systemswithoutexpress
written approval of SGS-THOMSON Microelectronics.
1994 SGS-THOMSON Microelectronics – AllRights Reserved
Australia - Brazil- China- France - Germany - Hong Kong- Italy - Japan- Korea- Malaysia - Malta - Morocco- The Netherlands -
Singapore- Spain - Sweden - Switzerland- Taiwan- Thailand- United Kingdom - U.S.A.
SGS-THOMSON Microelectronics GROUP OF COMPANIES
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