Axor Microspeed 12 Manual de usuario
1
MICROSPEED REV 04/05
The amplifier series is distributed with the CE mark, because they
are in accordance with the European Directives on EMC and Low
Voltage.
WARNING!
ELECTRICAL AND CONTROL EQUIPMENT CAN BE
DANGEROUS IF HANDLED IMPROPERLY
This manual describes the mechanical and electrical
characterists of the Microspeed series.
It is important, that the installation procedures are only performed
by qualified personnel in accordance with local safety guidelines.
Whoever installs the equipment must follow all of the technical
instructions printed in this manual.
For more information, please contact AXOR’S technical
department.
Allrightsreserved.Reproductioninwholeorinpartisprohibitedwithoutpriorwritten
consentofthecopyrightowner.
Allspecificationsaresubjecttochangewithoutpriornotice.
English
MICROSPEED
2
REV 04/05
Pag
3
4
5
6
6-7
8
9
10
11-13
14-20
21-24
25-26
26
27
28
28
29
30-31
32-33
34
35
36-39
40-41
42-43
44
1) Description
1.1 Introduction
1.2 Technical features
1.3 Inputs and outputs
1.4 Drive dimensions
2) Adjustments
2.1 Personalizations and settings
2.2 Solder bridges
2.3 Potentiometer adjustments
3) Diagnostic
3.1 L.E.D. indicators
4) Installation
4.1 Power supply rating
4.2 EMC requirements
4.3 Connections
5) Commissioning
5.1 Initial start up
6) Setting up the drive
6.1 Speed adjustment with tacho feedback
6.2 Nominal current adjustment
6.3 Peak current adjustment
6.4 Offset adjustment
6.5 Ramp time adjustment
6.6 Adjustment with armature feedback
6.7 Dynamic costant adjustment
7) Troubleshooting
8) Options
8.1 Available options
8.2 Encoder feedback
8.3 Limit switch
8.4 Pwm+Direction command
8.5 Block Diagram
Chapter 1
Index
3
MICROSPEED REV 04/05
The Microspeed Servo Amplifier is a compact full DC
four quadrant drive. The (MOSFET) output power stage
is controlled by a 22 Khz PWM (Pulse With Modulation)
signal that allows it drive small to medium sized brushed
servo motors (up to 2Nm) where high dynamic perfor-
mance and precise speed is required.
The Microspeed only requires a single power supply
to operate and develops all needed voltages on board
to make power supply design easy and convenient.The
imput voltage is from 12 to 130 Vdc max "See Tecnical
Data". (Chapter 4 describes how to design a proper
supply.)Closing the velocity feedback loop to motor
may be done in several different ways to accommodate
most applications. Three types of velocity feedback
are available with these drives.
Feedback Types: Tachogenerator, Armature,
Encoder(option), PWM+Dir (option)
Two inputs are present for the disabling of clockwise
and counter-clockwise motor rotation (+LM SW,-LM
SW.option)
The possibility to completely adjust the Dynamic
Constant exists by inserting new values "as opposed to
the standard mounted values".
The insertion of various prearranged operational drive
values are easily realized by opening and closing solder
points. The intervention of drive protections are all
visible with LEDs on the front of the drive.
The nominal current, as well as peak current is adjusted
through resistance on the base.
The operating temperature is from 0 to +40 °C (32° to
104°F). In accordance with the current size and model,
supplemental ventilation can be requested.
1.1 Introduction
MICROSPEED
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REV 04/05
Sizes I Nom. (A) I Peak (A)
MICROSPEED CURRENT SIZES
1/2 +/- 1 +/- 2
2,5/5 +/- 2,5 +/- 5
6/12 +/- 6 +/- 12
10/20 +/- 10 +/- 20
Microspeed 12 9 - 28 Vdc*
Microspeed 60 20 - 80 Vdc*
Microspeed 110 30 - 130 Vdc*
MICROSPEED VOLTAGE
22Khz
32°-104°F (0°+40°C)
12°-158°F (-10°+70°C)
+/-5 uV Degree F
+/-10Vdc
+/-7,5Vdc = (PK. curr.)
+/-10Vdc ( 4mA Max.)
2.5Khz
12.69oz (360 gr.)
10/95% not-condensing
--PWM frequency
--Operating Temperature
--Storage Temperature
--Drift
--Analog inputs
--Current Monitor (Imot)
--Auxiliary power supply
--Band Width Current
--Weight
--Humidity
TECHNICAL DATA CHARACTERISTICS
* Minimum and maximum voltage.
Nominal are: 12Vdc, 60Vdc, 100Vdc.
1.2 Tecnical Data
5
MICROSPEED REV 04/05
The Following are descriptions of the output drive connector.
1Drive OK NC (open collector max current 100mA)
2Demand current
3Common zero signal
4Auxiliary output voltage +10 volts 4 mA max
5Auxiliary output voltage -10 volts 4 mA m a x
6Enable(+10/30 volt drive enabled )
7Input speed reference +(Non inverting input)
8Input speed reference -(inverting input)
9Tacho input +
10 Tacho input -
+AT Power supply input positive pow. supply
- AT Power supply input negative pow. supply
+M Positive motor terminal
- M Negative motor terminal
1.3 Inputs and Outputs
Power terminals
Signal terminals
MICROSPEED
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REV 04/05
WARNING : After switching off to do the adjustments,
please wait for about 30 sec before working inside the
drive.
If the drive isnt adjusted with the proper servomotor, follow
these procedures.
Allof the personalizations are located inside of the
Microspeed .
-To enter to the adjustment components and the solder
bridges , unscrew (10) , and remove the cover (11).
NOTE: Dimensions mm ( INCHES)
1.4 Drive dimensions
2.1 Personalizations and setting
7
MICROSPEED REV 04/05
1 Product ID Label
2 Serial Number
3 and 4 Calibration Area
5 and 8 Phoenix Signal Terminals "5.08".
6 and 7 Phoenix Power Terminals "5.08".
9 Calibration Potentiometers.
10 Fixing Screws
11 Product Cover
RAMP
SE
SD
SC
Adjustment
Continue
MICROSPEED
8
REV 04/05
J1 Normally open. If closed, the activation of IN
protection, inhibits the output of the drives OK transi-
stor. When this situation occurs the green OK LED is
OFF.
J2 -J4 Normally opens. (See chapter 6.5 Ramp time
adjustement).
J3 Normally closed. (See chapter 6.5 Ramp time
adjustement).
J5 -J6 Normally closed. If open, the dynamic constant
CKR and RKV must be inserted on the personalization
socket.(PI loop gain).
J7 Normally open. If closed, enable the armature
feedback (See chapter 6.6 )
Note:For the adjustements SC,SD,SE solder Bridges,
see page 40,42.
All of the adjustments are located in the area behind
the potentiometers .Its there that a socket containing
all of the adjustment components is located..
The socket is made by a double row of components
with pitch 7.62mm/0.3 (resistors) with 8+8 ways, and
2+2 ways for components with pitch 5.08 mm/0.2
(capacitors).
The resistors may be 1/4W.
(RDT)
(RA)
(RCA)
(RIN)
(RIP)
(RKV)
(GAIN)
(RAMP)
(pitch 5,08) (CKV)
(pitch 5,08) (CDER)
2.2 Solder bridges
9
MICROSPEED REV 04/05
ACC
The solder bridges J2-J4 allow
insertion of the acc/dec function
(ramp). With this potentiometer we
can adjust the slope of the ramp in
acceleration and deceleration.
Turning the potentiometer
clockwise (cw) increases the ramp
time from 0,1 to 1 Sec (with 10 V
reference).
It is also possible to increase more,
this time by opening solder bridge
J3 and inserting resistance RAMP on
the socket. (See chapter
ADJUSTMENT)
VEL
Speed potentiometer.Turn the potentiometer clockwise
(cw) to increase the maximum speed and anti-clockwise
(ccw) to reduce the maximum speed.
The range of the adjustment is +/-20%.
BIL
Offset adjustment.Adjust this potentiometer to cancel
any offset in the external speed ref. signal.
(Max ref. compensation +/- 200mV).
KV
With this adjustment we can improve the dynamic
behaviour of the servomotor.With a clockwise turn
(cw)we increase the gain of the PI speed stage, therefore,
improving the response.
DER
Turn the potentiometer clocwise (cw)to increase the
derivative effect,reducing the amount of overshoot in
the system response.
2.3 Potentiometer adjustment
Pot.
MICROSPEED
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REV 04/05
-L2 (RED) IN Normally OFF,it is lit when it exceeds
the programmed value.
(Reversible alarm)
-L3 (RED) ST Normally OFF,it represents
overheating of the heatsink drive. This fault provokes
the activation and memorization of the alarm. To reset
it is necessary that you turn off the power supply, wait
until the heatsink temperature is lower, and then re-
start the power supply.
-L4 (RED) OC Normally OFF. May come
ON,because of a short circuit between motor terminals
or come to ground.It cant be reset and the fault
provokes the memorization of the alarm.
Switch off the system,eliminate the cause and then re-
start the power supply.
Four LEDs are available on the
drive and they signify the following:
-L1 (GREEN) OK Normally
ON, signifying proper operation of
the drive.
When the LED is OFF, it indicates
that at least one of the drive
protection functions is active.
3.1 LED indicators
Leds
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