MicroPAP Easy Motion SD-808 User Manual

SD808 - USER MANUAL
VERSION
DESCRIPTION
DATE
APPROVAL
1
Initial version
2012/04/30
2012/05/03
2
Protocol version
2012/06/03
2012/06/03
3
Controller and application revision
2014/07/02
2014/07/17
4
Enable mode suppression, application of track numbers and activation
2016/06/03
2016/06/05
4.1
Format
2016/06/03
2016/06/05
4.2
Format
2016/06/19
2016/06/19
4.3
English translation
2017/06/03
2017/06/07
5
Better explanation of track mode
2016/09/19
2016/09/19
5.1
Connection drawings of serial and track mode.
2018/05/30
2018/06/01
NAME
DATE
SIGNATURE
AUTHOR
Mario Aliaga
2012/04/30
REVISION
Fermín Alarcón
2012/05/02
APPROVAL
Jesús Caum
2012/05/03
Change Management
Information about document
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SD808 - USER MANUAL
Index
1 Presentation ..................................................................... 5
2 Initial Precautions ............................................................ 6
3 Connections .................................................................... 7
4 Power Supply ................................................................. 10
5 Motors............................................................................. 10
5.1 Motor current...................................................................................11
5.2 Temperature Control ......................................................................12
5.3 Limit Switch ......................................................................................12
6 Operation Modes .......................................................... 13
6.1 Serial mode .....................................................................................13
6.2 Track mode .....................................................................................13
7 Communications ........................................................... 13
7.1 Driver Configuration........................................................................14
7.2 Motion Command ..........................................................................15
7.3 Dynamic State Request ..................................................................16
7.4 Static State Request ........................................................................17
7.5 Tracks Settings .................................................................................18
8 Speed Profile .................................................................. 20
8.1 Speed Limits ....................................................................................21
9 Communication Example ............................................ 22
9.1 Control Frame .................................................................................22
9.2 Configuration Frame .......................................................................23
10 Software ......................................................................... 25
10.1 Communications ............................................................................27
10.2 Configuration ..................................................................................28
10.3 Serial ................................................................................................30
10.4 Track ................................................................................................32
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SD808 - USER MANUAL
11 Specifications ................................................................ 34
11.1 Electrical Values .............................................................................34
11.2 Mechanical Dimensions .................................................................35
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SD808 - USER MANUAL
MicroPaP products have a 1 year warranty against any
defects in manufacture. Furthermore, for the first 15 days,
MicroPaP guarantees the reimbursement of the purchase
price if the equipment is damaged or does not meet your
expectations.

1 Presentation

Thank you for purchasing the new MICROPAP EASY MOTION SD-808 driver.
SD-808 is a circuit designed for the operation of bipolar step motors with serial RS-485 communication.
Main Features:
RS-485 asynchronous serial port galvanically isolated. Serial mode of up to 32 devices connected in bus. Movements in complete steps (8 micro steps), 1/2, 1/16, 1/32 or 1/64. 24-byte control frames (ASCII) Execution of improved speed profiles. Wide range of power supplies (24 -72 VDC). Programmable phase current by means of PC software Maximum current adjustment 8A phase in 40mA increments. Setting of current standstill at 15, 40, 55 and 75% of the predefined maximum
current value.
Sinusoidal current control with harmonic suppression. Input for End / Stop in switch mode or PNP with auxiliary power. Opto-coupled auxiliary inputs. Protections: temperature and voltage. Plug connectors. DIN rail mounting (optional).
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SD808 - USER MANUAL
Before connecting the equipment to a RS-485 bus, all the
required parameters for its correct operation must be
configured in point-to-point mode. Remember 120 ohm
resistors on two bus end points!

2 Initial Precautions

Make sure you read the information on motor current adjustment and motor connection method with special wiring configurations carefully.
Make sure that the power supply has enough power. Choose wires with a suitable section, without pre-tinning or with pressed tips
and as short as possible.
Be sure to configure the motor characteristics before using the controller. A USB-RS485 converter is required, microPaP can supply this as an option. When the driver is starting up, wait until the green LED is turned on and the
red LED is permanently switched off so that the device is in working condition.
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SD808 - USER MANUAL

3 Connections

The SD-808 has plug-in terminals of different pitch (to minimize connection errors) for communication signals, auxiliary input, limit switches and power connectors.
Figure 1 Serial mode connections
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SD808 - USER MANUAL
Figure 2 Track mode connections
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SD808 - USER MANUAL
CONNECTOR
PIN
SIGNAL
PWR
1
+ V (Supply voltage)
2
GND_P (Ground) (*)
MOTOR
1
Phase B (Connect to the extreme 1 of first motor coil)
2
Phase /B (Connect to the extreme 2 of first motor coil)
3
Phase A (Connect to the extreme 1 of second motor coil)
4
Phase /A (Connect to the extreme 2 of second motor coil)
ANG_IN
1
+12V (Auxiliary power supply 12VDC)
2
ANG (Analog input or track activation)
3
FC (Switch Limit)
4
GND_P (Negative) (*)
OPT_IN
1
IN1 (Optocoupled auxiliary input 1)
2
IN2 (Optocoupled auxiliary input 2)
3
IN3 (Optocoupled auxiliary input 3)
4
IN4 (Optocoupled auxiliary input 4)
5
GND_OP (negative optocoupled inputs) (*)
RS485 (**)
1
+5V 2 A
3
B
4
GND_485 (negative) (*)
LEDS
RED
Flashes at driver’s initialization time. Turn-on during movements
GREEN
Permanent active indicating power and operation of the driver
(*) Las masas del controlador no son comunes. (**) Precisa de una alimentación externa
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SD808 - USER MANUAL
Figure 3 4-wire connection
Figure 4 6-wire connection
Placing outside this allowable power supply voltage rank for
the driver means that the driver protections will activate and disconnect the power elements.

4 Power Supply

The voltage of the driver’s power supply must be between 24VDC and 72VDC, with a maximum current of 8A.
The value of the right voltage to power a stepper motor depends on the desired high maximum speed performance. Increasing the voltage of the driver’s power supply allows to increase the maximum speed of the motor without loss of steps.

5 Motors

Motors with 4, 6 or 8 wires can be used. The 8-wire motors can be connected in series or parallel allowing double the torque in the parallel connection.
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SD808 - USER MANUAL
Figure 5 8-wire serial connection
Figure 6 Parallel 8-wire connection
It is very important not to disconnect/connect the motor
with the controller supplied.
Check the connections before turning on the power!

5.1 Motor current

The adjustment of the maximum current provided by the controller must be selected at the peak rated motor current (Inominal * 1.41) in order to avoid overheating in its windings which would shorten its life.
The motor current must be set in the controller before the first use. The configuration is done through the demo program (available free at http://www.micropap.com) and a USB-RS485 converter.
The current can be adjusted from 400mA up to 8A by 40mA increments. This way, maximum performance from the motor is ensured.
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