Axor Minispeed MS 60 User manual

ENGLISH

Service Guide MINI SPEED
Service Guide MINI SPEED
High Performans servo Drives
AXOR High Performans servo Drives
AXOR
ATTENTION
ELECTRICAL DISCHARGE
DANGER


CAUTION!
ELECTRICAL AND CONTROL EQUIPMENT CAN BE
DANGEROUS IF HANDLED IMPROPERLY.
This manual show mechanical and electrical charateristics about
minispeed 60-140-200 series.
It is important, that the installation procedure should be perfomed
only by qualified personnel according with local safety rules. Who
installs the equipment must follow the technical informations
contained in this manual.
For other informations please contact AXOR technicians.
CHAPTER 6 - Options
Accessories
Single phase bridge 35A-600V
Three phase bridge 25A-800V
Capacitor 10000mF/100V x MS60
Capacitor filtro 10000mF/200V x MS140
Single phase transformer
Three phase transformer
Capacitor 4700mF/200V x MS140
Mother board with braking circuit
Encoder feedback board
Rack
Chokes
Mother board
PM 3506
PT 2508
C10-100
C47-200
C10-200
SPG
SPGR
RK....
LX....
TM....
TT....
SRE
CODEDESCRIPTION
PWM optional card
PWM

Service Guide MINI SPEED
Service Guide MINI SPEED
High Performans servo Drives
AXOR
High Performans servo Drives
AXOR

Index
1) Description
1.1 Introduction.........................................................................................
1.2 Technical information..........................................................................
1.3 Inputs and outputs..............................................................................
1.4 Dimensions.........................................................................................
2) Calibration
2.1 Potentiometers calibration..................................................................
2.2 Personality..........................................................................................
Personality header calibration.......................................................
Dinamic response calibration........................................................
Solder bridges JP..........................................................................
3) Installation
3.1 Power supply dimensionality
Single phase......................................................................................
Three phase.......................................................................................
3.2 Cooling and derating curves...............................................................
3.3 Wiring.................................................................................................
Mother board connections............................................................
Standard rack connections...........................................................
Ground.........................................................................................
Examples......................................................................................
4) Service controls
4.1 Preliminary controls............................................................................
4.2 Starting procedure..............................................................................
4.3 Calibration..........................................................................................
5) Signalling and fault research
5.1 Ledʼs diagnstic...................................................................................
5.2 Fault protections.................................................................................
5.3 Fault research....................................................................................
6) Options
6.1 Regenerative modules........................................................................
6.2 External choke (option).....................................................................
6.3 Accessories.......................................................................................
6.4 Note...................................................................................................
Pag.
4
5
6
7
8
9
9
11
12
13
14
16
18
19
20
21
22
23
24
25
26
31
32
33
34
34
35
36
Options
Regenerative modules
External series inductor
If during the deceleration phase,green OK led switch off ,we suggest to increase the external
capacitor.
When inertia load is elevated ,often external capacitor itʼs not enough and then we must
use the regeneratives modules.
Rack regenerative module
(same size of an amplifier)
Motherboard regenerative module SPGR 60 / 140 / 200
SHR 60 / 140 / 200
These amplifiers need inductor connected in series to the motor only if the motor has a
internal inductance lower then 0,7-0,8 mH.
So we improve form factor and the servomotor donʼt over heating.
NOTE
IN the electric box,the inductance,must be connected with short wires between amplifier
and inductance too.
CHAPTER 6 - Options 

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1.1 Introduction
The minispeed "MS 60", "MS 140", "MS 200" series are four quadrant
amplifiers, constructed on an european simple pc board.
The output power stage (mosfet or IGBT) is controlled using the PWM
technique (20 Khz).
These amplifiers are designed for driving small and medium servomotors
where dinamyc performance and fast response are requested.
The speed control is made by tachogenerator ,armature or encoder
feedback.
For its supply is requested single phase power supply.
The calibration components are avalaible at removable personality
header.
If an amplifier module is replaced,it is important to verify that the new
amplifier module is calibrated as the one removed.
This is easily accomplished by simply installing the personality header
from the removed amplifier module into the new one.
We can adapt dinamyc costant,respect standard, by new personality
header.
For to use various options available on amplifier, we must open or close
the solder bridges in “adjustment zone”.
The minispeed amplifier has a “drive ok” green led and a”fault” red
avalaible on the frontal of the amplifier.
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5.3 Fault research
1) When we applying power OK green led doesnʼt light.
Supply voltage not correct - Control by instrument between +AT and -AT
2) OK green led is light,but servomotor donʼt start when we enable the amplifier.
Velocity signal isnʼt present - Verify input signal
3) When we enable amplifier,OK green led doesnʼt light and O.C. red led is lighted.
There is a short circuit on motor
Wire or servomotor winding is
connect to ground
- Turn off the main power
- Verify the proper wiring
- Verify the motor
- Disconnect the servomotor and verify its
insulation with a tester.
4) When we enable ,the servomotor runaway and m.d. red led is lighted.
There isnʼt present tacho signal
Motor cables or tacho cables
are reversal
- Turn off the main power
- Verify with an instrument, the value directly on the
amplifierʼs terminals.
5) With armature feedback,when we enable
m.d. red led is lighted
Solder bridge JP 10 close - Open solder bridge
- Invert motor or tacho cables
6) When we enable the servomotor is stop and
m.d. red light is lighted.
Motor isnʼt connect - Verify the presence of connections.
7) When we enable servomotor turn at high speed and m.d. red led doesnʼt light
Potentiometer speed calibration
isnʼt correct.
- Verify the proper procedure about “ADJUSTMENT”
(see page 26/27).
8) During the deceleration phase OK green led switch off.
Voltage exceed maximum limit - Verify the capacitor values(see chapter power supply
page 34).
9) During the working phase S.T. red led lighted and sevomotor stop.
Happened max temperature
thermoswitch
- Room temperature is greater then 40 °C.
- There isnʼt present forced cooling where is
required.

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5.2 Protection circuit
Minispeed amplifier has protective circuits for safeguard the servomotor and the amplifier
too.All protections are annunciated in front of the amplifier.(see page 31)
When a protection goes on it provokes the memorization of the alarm,switch off of the
green OK led and disable 2ac pin(interdiction of the transistor=off).
When In red led is on this donʼt provokes the memorization of the alarm but disable 2ac
out (interdiction of the transistor=off),but if JP9 solder bridge is closed.
There are two types of faults:reversable or irreversible.
Reversible protection: The amplifier will enable as soon as the current
or voltage returns to on acceptable operating
level.
The amplifier wonʼt enable.We must switch off the
power supply,eliminate the fault cause and start
again the amplifier after a minimum amount of time
for be sure of complete capacitors discharge.
Irreversible protection:
REVERSIBLE FAULT
Is activated when the power supply come out from
the table described below.
Over under voltage
MODEL UNDER VOLTAGE OVER VOLTAGE
MS 60 20 V 84 V
MS 140 40 V 182 V
MS 200 58 V 275 V
Is activated when the IxT cycle of the amplifier
is exceeded.
Limit of the current
IRREVERSIBLE FAULT
The power switching bridge is provided with a
termoswitch wich opens when the temperature
exceeds a safe operating level.
Temperature (S.T.)
Is activated when tachogenerator is open, short
circuited, or reversal,for preventing motor
runaway.
Is activated when there is a short circuit on the
motor.
Broken tacho generator
Short Circuit
1.2 Technical specifications
Power supply voltage and rated current for every model.
Model Power supply (Vdc)
MS 60 24 - 60 *
MS 140 40 - 140 *
MS 200 100 - 200 *
Sizes Rated Current Peak Current (A)
2/4
4/8
8/16
10/20
14/28
20/40
25/50
24
48
8 16
10 20
14 28
20 40
25 50
- Size avalaible for all models - Rated current . See derating curves pag 18.
- Rated current is adjustable between 5% to 100% by Rin.
- Peak current is adjustable between 50% to 100% by Rip.
* These are values reccomended from factory.
Min and max voltage values are reported at page 32.
Input reference
Drift (referred to differential
reference amplifier)
Drift (referred to differential speed
amplifier)
Input-output demand current
Enable signal
Minimum tacho signal at max
speed
Output voltage for external use
Motor current monitor
Operating Temperature
Humidity
Altitude
Weight
Differential +/- 10V (input impedance 20K Ohm)
+/- 18 micro V/C° (max)
+/- 18 micro V/C° (max)
+/- 10V (input impedance 47K )
10 / 30 VDC (input impedance 10K )
5V
+10V, -10V (5mA max)
+/- 8V (corriepond at peak current)
0 / 40 C°
80% max (without condensation)
0 / 1000 m s.l.d.m.
510 gr

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1.3 Inputs and outputs
The following numeration concerns inputs and outputs about DIN 41612 connector.
Wiring must be done on the terminal boards connections:
on mother board and on rack pc board .(see chapter 3.3 wiring).
1ac
2ac
3ac
4ac
5ac
6ac
7ac
8a
8c
9ac
COMMON ZERO SIGNALS
DRIVE OK (OUTPUT)
Open collector: max current(100 mA) is protected with zener diode (47 v)
Normally close on.Itʼs
DEMAND COMMAND CURRENT (INPUT OUTPUT) see page 23
It can use in two modes :
1°Current limitation :
We connect a resistance between pin 2 and pin 3 (zero)
2° Current reference : ( torque input )
We apply +/- 10 v signal, it correspond at peak current .
We can use 3 ac pin also as signal representive of the motor current.
Use instrument with impedance greater than 100 k .
- 10V (OUTPUT)
Output voltages for external use - 10 volt (max current 5 mA )
+10 V (OUTPUT)
Output voltages for external use +10 volt (max current 5 mA)
VELOCITY REFERENCE (INPUT)
Noninverting differential input +/- 10 volt
ENABLE (INPUT)
Logic signal for amplifier 10/30 vdc
VELOCITY REFERENCE (INPUT)
Inverting differential input +/- 10 volt
COMMON ZERO SIGNALS
TACHOGENERATOR (INPUT)
Input tachogenerator signal
5.1 Led's diagnostic
Led's
diagnostic
OK LED (green normally light on)
This led shows proper functioning of the
amplifier.
It switch off when is activated a whatever
protections shown also from red led light on.
It switch off when over/under voltage protection
is activated.
I.n. LED (Red normally switch off)
When this led is lighted protection IxT is
activated, limit and max current provided is the
rated current.
This “alarm” donʼt cause the disabilitation of the
amplifier.
The amplifier return automatically to normal work
when current consuption goes to a normal value.
If the JP 9 solder bridge is closed is not activated
the interdiction of the output transistor and the
switching off of the green led (drive ok see page
10)
O.C. LED (RED normally switch off)
Alarm of over current fault.
The power switching of the drive is continuosly monitored,and circuit will disable power
section if any of the following faults occur:
-Motor armature leads shorter
-Motor armature shorted to ground
-Motor armature shorted to power supply
This fault provoke the memorization of the alarm;can be reset by turning off the main
power for several seconds,and then turning it on again.
S.T. LED ( red normally switch off)
Alarm of over temperature fault.The power switching bridge is provided with a thermoswitch
which opens when the temperature exceeds a safe operating level.
This fault provoke the memorization of the alarm.It canʼt be reset.We must wait or a lower
heatsink temperature and then turning on the main power.
M.D.LED (Red normally switch off)
Alarm of loss of tachogenerator signal or tachogenerator signal reverse.
This fault provoke the memorization of the alarm.

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High Performans servo Drives
AXOR
High Performans servo Drives
AXOR
11 ac
14-15-16-17
ac
19-20-21-22
ac
24-25-26-27
ac
29-30-31-32
ac
1.4 Overall dimension
CHAPTER 4 - Service controls 
CHAPTER 1 - Description 
FOLLOW DYNAMIC GAIN
Increase gain turning in
clockwise sense “KV”
potentiometer until obtain a
response similar as shown.
Proportional integral gain low
Attention: Do not exceed with
gain,you can cause an useless
motor heating the motorʼs due to
swing following current
oscillations.
(TP1-TP2)
For reduce the overshoot turn in
clockwise sense”DER”
potentiometer until obtain a
response similar as shown.
CURRENT SIGNAL (OUTPUT)
+/- 8v referred to peak current
POWER SUPPLY + ( INPUT )
Input positive power supply
POWER SUPPLY - ( INPUT)
Input negative power supply
+ M (OUTPUT)
Connections output to servomotor
- M (OUTPUT)
Connections output to servomotor
I Current

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Test point
zero signal
Test point
Current signal
Eichun
g
nur
fuer
qualifiziertes
Personal!
 
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2.1 Trimmer adjustment
Adjustment
VEL
The vel trimmer fine tunes the velocity
command input sensitivity . It provides a
range of +/- 20 % to fine tune the velocity
command input sensitivity ;for increase
speed turn potentiometer clockwise and
in anticlockwise sense for reduce itself.
BAL
Offset calibration. This potentiometer
allows offset calibration on the input
reference.
Max reference correction +/- 200 mV
KV
The dinamyc response of the motor depends from this trimmer; for increase the gain turn
the KV potentiometer in clockwise sense.
DER
Derivative adjustment.Turning the DER trimmer in clockwise the overshoot is reduced.
ACC
The solder bridges allow insert the acc/dec function.(JP1-JP2-JP8 )
With anticlockwise turn(ccw)we increasing acc/dec function between 0.1/1 sec.(correspond
10 v reference)
We can increase or reduce max time of acc/dec opening JP1 solder bridge and inserting
a resistance in the personality header.(see chapter 4.3 adjustment)
N.B. Usually,the amplifier,is provided with the ACC/DEC function disabled.
If we insert RIP resistance on the personality header
between 5-10 pin,we can limit peak current.
Below is reported a table with re-entry current.
PEAK CURRENT CALIBRATION
ACC/DEC TIME CALIBRATION
JP1 JP2 JP8 FUNCTION RANGE NOTES
acc/dec off
acc/dec on
acc/dec on
Standard adjustment
Adjustable by acc potent.
Adjustable by acc potent.
0 sec.
0,1 / 1 sec.
By ramp resistance
Res RAMP 680K 820K 1Mohm 1,5Mohm 2,2Mohm 3,3Mohm
Time 0,2 s - 2,6s 0,3s - 3,2s 0,4s - 3,9s 0,6s - 5,7s 0,8s - 8,6s 1,4s - 13s
Usually,these calibration,are made from the factory.
If we have very high load inertia (report 3:1 between
inertia load and inertia motor) we must modified KV
gain “KV”potentiometer and increasing the derivative
function “der potentiometer”.
The calibration must be made with load,connected to
the motor.
Apply square wave(0,5 hz +/- 1v) at the input
reference.
Connect at tachogenerator input an oscilloscope with
memory (ground probe must be connected at zero
signal).
Then turn the trimmer der in anticlockwise sense.
Before look for safety space during alternative mote.
Apply power to the amplifier and enable it machine
will move itself up and down.If possible increase
voltage to +/-2volt when the oscilloscope signals on
monitor making a comparation with the wave shape
on following page and do as suggested.
DYNAMIC CALIBRATION
Calibration
for qualified
personnel !
T
a
g
l
i
a
/
R
I
P
(
K
o
h
m
)
- 220 150 100 82 68 56 47 39 33 27 18
02/04
4 3.7 3.6 3.3 3.2 3.1 3 2.8 2.7 2.5 2.3 2
04/08
8 7.3 7.1 6.7 6.4 6.2 5.9 5.6 5.3 5 4.6 4
08/16
16 14.5 14 13.2 12.7 12.2 11.6 11 10.5 9.8 9.2 8
10/20
20 18 17.4 16.3 15.5 15 14.4 13.7 13 12.1 11.4 10
14/28
28 26 25 23.5 22.6 21.8 20.8 19.8 18.7 17.5 16.5 14
20/40
40 37.8 36 34.1 33 31.7 30 28.9 27.1 25.8 23.8 20
25/50
50 46.9 44 41.7 40.3 38.5 36.9 34.9 33 31 28.9 25

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Personality
header
Adjustement
Zone
Personality
header
 
 
We recommend to not exceed with the dynamic gain of the velocity loop
(kv potentiometer) for avoid control instability.
It is also important the ratio between VDC power supply and V motor for
the stability.
Specially for armature feedback avoid reports VDC/V motor greater 1.5.
Example: MS 140 armature feedback,supplied 130v with voltage motor
at max speed 40 v.
130 = 3,25 NO !
40
OFFSET SPEED
CALIBRATION
The amplifier is provided with the offset speed calibration
performed for tacho feedback.
If necessary,retouch through bil potentiometer for correct
offset.(until +/-200 mv can be compensated on analogue
input).When we have zero input reference,turn potentiometer
until servomotor is stopped.
When you use amplifier in armature feedback please proceed
with the offset calibration as follows:
- Insert RA and RCA resistance calculated (see page 27).
- Insert a voltmeter between Im test point and zero (see page
6) and turn bil trimmer to reach zero voltage respect to tacho
mode ,bil trimmer has to be turned more times stop trimmer
when motor shaft stops.But no loads are to be applied during
this calibration.
The amplifier is provided with standard calibration.
It correponds at rated current of the size,Rin not mounted.
For reduce itself,insert RIN resistance between 4-11 pin of
the personality header.
Typical values are reported below.
Is not suggest to use a lower value than the reported one of
820 ohm.
RATED CURRENT
CALIBRATION
RATED CURRENT
TIME
INTERVENTION
Minispeed amplifiers provide peak current for 2 sec.
If nominal current is lower then the current of
amplifier,intervention time is lower than 2 sec on the same
ratio.
2.2 Personalization
All the amplifier adjustments are present
on the 3.005.4 Pc board the adjustment
zone.
The amplifier is provided with 7+7 pin
header where we mount personality
components.
If an amplifier is replaced,it is important
to verify that the new amplifier is
calibrated as the one removed.
This is easily accomplished by simply
installing the personality header from the
removed amplifier into the new one and
verify the solder bridges.
Dynamic adjustment
Solder side
Adjustment on the personality header
For calculate the
correct value
see page 26
RDT RESISTANCE pin 1 - 14
If we insert this resistance,we adapt KE
tachogenerator costant with input amplifier costant.
If the KE costant is small,we can bridge this
resistance.(see velocity calibration chapter 4.3)
The same also if a very low speed is requested.
Taglia/
RIN(Kohm)
- 18 10 8.2 5.6 4.7 3.9 3.3 2.7 2.2 1.8 1.5 1.2 1 0.82
02/04
2 1.9 1.8 1.7 1.6 1.55 1.4 1.3 1.2 1.15 1.1 1 0.9 0.8 1.7
04/08
4 3.7 3.5 3.4 3.2 3.1 3 2.8 2.7 2.5 2.3 2.2 2 1.9 1.7
08/16
8 7.5 7.2 6.8 6.5 6.2 6 5.7 5.4 5 4.6 4.4 4 3.7 3.3
10/20
10 9.3 9 8.5 8 7.7 7.4 7.1 6.7 6.2 5.8 5.4 5 4.6 4.2
14/28
14 13 12.3 12 11.2 11 10.5 10 9.2 8.8 8.1 7.5 7 6.5 6
20/40
20 18.8 18 17.4 16.2 15.8 15 14.5 13.5 12.7 11.9 11 10.2 9.4 8.6
25/50
25 22 21 20.5 19 18.5 17 16 15 14 13 12 11 10 9.5
0.7

Service Guide MINI SPEED
Service Guide MINI SPEED




 
 
Adjustment on the personality header
RA RESISTANCE pin 2 - 13
ACC/DEC RESISTANCE pin 3 - 12
It gives ACC/DEC time.When we insert this resistance
we must close solder bridges JP1,JP2 and JP8(see
page 29).
Use this resistance only armature feedback .It permit
adaptament at the costant motor tension .For enable
the armature feedback close solder bridge JP6(see
page 27).
IN RESISTANCE pin 4 - 11
It gives limitation of the rated current value.(see page
28)
IP RESISTANCE pin 5 - 10
It gives limitation of the peak current value.(see page
29)
RCA RESISTANCE pin 6 - 9
Compensation of the internal motor voltage due to
RI resistance of motor.
We insert it when use armature feedback (see page
27),if not inserted we have a speed decreasing from
no load to load working.
ADJUSTMENT VELOCITY IN
ARMATURE FEEDBACK
Armature voltage can be used as velocity feedback,
when motor has not tachogenerator .
The armature feedback system has less precision
than a tachogenerator.(range 1/20 and when the
motor is stopped it has no torque).
For enable this function close solder bridge JP 6 and
open solder bridge JP 10(disable tachogenerator
alarm).
Insert RA resistance on the header between pin 2-
13 for adapt system at the voltage motor costant.
The value of RA resistance can be calculated using
the following formula:
E=nxKe
1000
Ke= fcem at 1000
rpm.
Vref = max. Voltage
reference
n=max desired
speed expressed in
rpm
MS 60 RA(k ohm) = 166 xVref
E - 1,4 Vref
MS 140 RA(k ohm) = 159 xVref
E - 3,3 Vref
MS 200 RA(k ohm) = 158 xVref
E - 5 Vref
KE MOTOR=50V n=4000 giri/min Vref=10V
E=4000 x50 =200
1000
MS 200 RA(k ohm) = 158 x10 =10.5 Kohm
200 - 5 x10
So the value of the resistance is 10 k.
We will obtain fine speed operating with vel potentiometer on front panel.
Insert RCA resistance between pin 6-9 of the header for compensate internal RI of
the motor.
Use the following formula for determining the value.
n= max. speed in rpm.
Ra total resistance (cold).
Ipk peak current of driver size.
Amplifier 10/20 A , Ra=2.5 ohm
RCA (k ohm) = 0,45 x4000x50 =180 Kohm
10x20x2.5 Use 180 Kohm resistance or a
bit higher .
I If after this operation motor is instable,a bigger commercial resistor value must be
choosen,changing the previous one.
21
3
312
69
510
411
RCA (k ohm) = 0,45 xn Ke
Vref Ipk Ri

Service Guide MINI SPEED
Service Guide MINI SPEED




CKI and RKI
C DER
RKV - CKV
GAIN
 
 
4.3 Adjustment
MAX TACHOGENERATOR
FEEDBACK SIGNAL
NOTES:
for adjustment we need the following instruments:
- Rpm-counter for measure the motor speed , or digital
voltmeter for measure tacho signal.
- Potentiometers 5k until 47 kohm.
Axor advise to use a potentiometer when there is not a
CNC.
A pot. allows also to reach max speed during tests without
too fast accelerations.
ATTENTION:If a cnc is used and the cnc positive direction
is inverted respect to the motor positive rotation, we must
invert both motor and tacho cables. If not made the cnc
when started will give axis position error after started at full
speed . Moving manually the machine it is possible to verify
that both positive sense(motor and cn) will be on same
direction.
Insert RDT resistance between pin 1-14 on the personality header.It can be calculated
with the following formula.
RDT value express in k (1/4 w)
Kdt tacho generator costant (express in v/1000rpm)
nmax speed express in RPM
Vref max voltage reference
RDT (Kohm) = Kdt x n x 9,7 _ 8
1000 x Vref
We will use RDT= 22 Kohm.
If the result from formula is zero make a bridge. If the result from formula is negative you
must change the tachogenerator with another with an higher kdt.
RDT =10 x 3000 x 9,7 _ 8 = 21,1 Kohm
1000 x 10
Kdt =10
n=2500 RPM
Vref=10
Dyinamic response calibration
When complete information is supplied to AXOR, the
amplifiers are calibrated from the factory for nominal
motor performance.
Field calibration may be necessary to optimize motorʼs
performance for a particular applications ,replacing
internal costant.
For replacement we insert new value in
“ADJUSTMENT ZONE” opening solder bridges
expected.(see page 9)
Calibration for qualified
personnel
They describes respectively capacitor and resistance
of the current loop.
For replacement we must open the solder bridge
JP3.(disabilitation of standard costant)
It allows to increase the velocity loop derivative
costant.
New value may be composed by 2 capacitor.
We can insert these capacitors in the predisposed
space.The obtained capacitor value is the sum of the
two.
They describe respectively resistance and capacitor
of the velocity loop.
For replacement we must open the solder bridge JP4
.(disablilitation of standard costant)
It defines the velocity loop static gain.
We can insert new value by solder bridge JP5 opening
disabilitation of standard costant.

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Service Guide MINI SPEED




JP10
JP9
JP7
JP6
JP5
JP4
JP3
JP1 ,JP2, JP8
 
 
JP solder bridges
Standard
bridges
In the “ADJUSTMENT ZONE” there are
ten solder bridges;with these we can
enable or disable functions or 3.005.4
circuit sections.
They allow obtain different ACC/DEC times.
(see chapter 4.3 calibration)
Normally closed. If it is open loop standard costants
CKI-RKI are disabled.
Normally closed. If it is open current loop standard
costants CKV-RKV are disabled.
Normally closed. If it is open velocity loop static
gain is disabled.
Normally open . If it is close the armature feedback is
enabled.
Normally closed. We open this when we wish to drive
the amplifier with external current reference.(velocity
loop disabled)
Normally open. If it is closed,thermic image IxT circuit
activation donʼt stop the output transistor and the green
led light.(Drive ok)
Normally close.If it is opened ,lost or reverse tacho
circuit activation donʼt stop the driver working.
It must be opened when armature feedback is used.
In the amplifier thereʼs a tachogenerator protection that prevent motor runaway.
If we insert a wrong RDT resistance tachogenerator fault donʼt intervent.
Please verify the correspondance of solder bridge closing point referred to needed function
of driver .
These are the solder bridges(see page 10) normally closed and open supplied as standard
Standard solder bridge
JP1 closed
JP2 open
JP3 closed
JP4 closed
JP5 closed
JP6 open
JP7 closed
JP8 open
JP9 open
JP10 closed
Attention at the power supply polarity !!
Verify all screw clamp connections and double check on
driver wiring following motor and tacho polarity we will obtain
clockwise direction with positive speed reference.
After the preliminary checks we can insert the amplifier on the mother-board
the motorʼs shaft must be free from the load be ready to stop main supply net if will be
necessary after. Disable PWM ON.
Put power on driver.Green light led will be on normally if not on ,please verify with a tester
voltage value ;” min or max voltage protection on” .
With analogue input on zero level abilitate PWM on.If motor stays with torque or turns
very low,tacho polarity is ok.
If tacho polarity is inverted ,after a little rotation MD protection”tacho loss inverted polarity”
is activated and it stops the driver (obviously if also JP 10 bridge is closed).
The alarm is shown with red led light on (not resettable protection)shut power circuit ,reverse
tacho cables and start on again.
For further malfunctions,see chapter “fault research”.
4.2 Starting procedures

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High Performans servo Drives
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High Performans servo Drives
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Voltage:
Primary voltage value is the avalaible voltage on the main
secondary voltage to be calculated referrd to motor max line
voltage to be used .
Use the following formula:
where V motor = E max + ( Ri x In )
Vmotor=
Emax =
Ri =
In =
Voltage range is reported at page 5.
However,for keep margin, axor advise rated voltage on the
secondary winding of the transormer as follows:
(For overvoltage or breaking circuit on capacitors)
CHAPTER 4 - Service controls 
CHAPTER 3 - Installation 
Connections examples
With a “CNC” signal
we drive the amplifier in
torque mode.
Applying +/- 10 v the
amplifier provide peak
current.
Applying a resistive load:for
example a potentiometer,
we can limit the output
current .
NOTE When current driving is used JP7 solder point must be opened
.(see page 12)
4.1 Preliminary checks
The standard amplifier is provided as follows:
Nominal and peak current agree with amplifierʼs size.
Ex. MS 10/20 = 20A Peak 10A Nominal
Tachogenerator feedback
Control the proper value of RDT resistance pin 1/14(see chapter calibrations) on the
personality header RDT resistance of 22kohm is mounted for 3000 rpm with 10V/krpm
from tacho.
3.1 Power supply dimensioning
Single phase power supply
TRANSFORMER
Vac = Vmotor
0,9 x 1,36
This is voltage between armature motor at max
speed and nominal stall torque.
CEMF at max work speed.(Similar to max
voltage of max no load motor speed)
Armature motor resistance with brushes.
Rated current at nominal torque.
44 VAC MAX NOMINAL x MS 60
90 VAC MAX NOMINAL x MS 140
145 VAC MAX NOMINALx MS 200
Axor amplifier system has several wiring connections wich must be made in order
to ensure a correct operation about input reference.
The numerations are referred on mother board and rack.
Input reference shield should be connected at ground isolated bar (see ground
connections). WARNING: Do not connected power negative (-) of source at to the
ground.

Service Guide MINI SPEED
Service Guide MINI SPEED
High Performans servo Drives
AXOR
High Performans servo Drives
AXOR
Fuses dimensioning
fuses on primary slow types
fuses on secondary slow type
Power supply fuses for MS 60,MS 140,MS 200.
Using the interconnections modules ,the fuses are on board.
P (VA) = (Pass M1 + Pass M2 +.........) x 1,25
F 1° = P (VA) transf. x 1,1
V (Primary) ac
F 2° = P (VA) transf. x 1,1
V1 (secondary)

CHAPTER 3 - Installation 
CHAPTER 3 - Installation
Power: nominal transformer power is referred to each motor
power sum,on pluriaxes applications.
where
Usually, if motors donʼt work together,we can declass the
transformer of 30/40%. If the power of the transformer sur-
plus 7KVA call AXOR.
Pabs = Vmotor x In (Pabs M = absorbed motor power)
FUSES
FDC x MS 2/4 = 10A super rapid
x MS 4/8 = 10A super rapid
x MS 8/16 = 10A super rapid
x MS 10/20 = 10A super rapid
x MS 14/28 = 16A super rapid
x MS 20/40 = 20A super rapid
x MS 25/50 = 20A super rapid
Connections examples
Here we found some examples about input reference.
The numerations are referred to rack and mother board interconnections.
Input reference shield should be connect at ground isolated bar. (see ground connections)
Examples for analogue input connection.
Velocity Control
“C.N.C” differential
mode.
Velocity Control
“C.N.C” common
mode.
Connection of
velocity reference
input using internal
amplifier voltage.
Connection of
velocity reference
input using external
voltage.
Dimensioning single phase power supply

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High Performans servo Drives
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High Performans servo Drives
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Rated voltage: 100 VDC per MS 60
200 VDC per MS 140
300 VDC per MS 200
Capacitor: the capacitor, filters the voltage from
single phase bridge and recoveries the energy from the motor
during the deceleration phase.Capacitorʼs value,can be
obtained with following formula:
where:
V2 = Capacitor voltage between positive and negative at no
load speed.
load.

CHAPTER 3 - Installation 
CHAPTER 3 - Installation
Ground cable connections
AXOR advises to connect on an only one isolated bar.
The interconnection screw marked with symbol.
With only one wire we connect the isolated bar at the ground of the
electric box. From which it will start the ground connection to electrical
power net.
Donʼt make any bridge between the ground of the amplifiers, for
avoid closed loop ground interferences.
NOTE ATTENTION!!!
For racks double ground connection is required both pin 13 and
ground screw “chassis ground” must be ground connected.
Power supply dimensioning (single phase)
FILTER
CAPACITORS
NOTE
C (mF) = P (VA) transf. x 2000
V2
(The capacitor
must be for
switching
application)
N.B. If during the deceleration phase green ok led switch-
off,voltage between positive and negative is excessive;
therefore we must increase the capacitor(parallel) or use
the regenerative modules.This modules are reccomended
specially with MS 140 and MS 200.
DISCHARGE
RESISTANCE This resistance ,discharge the capacitor also when amplifier
is disconnected after power supply switch off.
The value can be calculated with the followig formula :
RS (Ohm) = 20 x 1.000.000.
C (mF)
P (W) = V22
RS

Service Guide MINI SPEED
Service Guide MINI SPEED
High Performans servo Drives
AXOR
High Performans servo Drives
AXOR
F 1° = P (VA) transf. x 1,1
V (primary) 1,73
F 2° = P (VA) transf. x 1,1
V1 (secondary) 1,73
FDC x MS 2/4 = 10A super rapid
x MS 4/8 = 10A super rapid
x MS 8/16 = 10A super rapid
x MS 10/20 = 10A super rapid
x MS 14/28 = 16A super rapid
x MS 20/40 = 20A super rapid
x MS 25/50 = 20A super rapid

CHAPTER 3 - Installation 
CHAPTER 3 - Installation
Dimensioning with three phase power supply
TRANSFORMER Voltage: See single phase section same parameters
can be used.
Power: See single phasesection same parameters can
be used.
FUSES
Rack board interconnections
Fuses dimensioning
Fuses on primary slow types
Fuses on secondary slow types
Power supply fuses MS 60, MS 140, MS 200
Using the interconnections modules , fuses are on board.
ATTENZIONE: Axor reccomend, to connect the drive at the power net using
a transformers with triangle connection in the secondary wiring. If the
secondary wiring is star connection, you MUSTN'T connect the neutral to
ground.

Service Guide MINI SPEED
Service Guide MINI SPEED
High Performans servo Drives
AXOR
High Performans servo Drives
AXOR



CHAPTER 3 - Installation 
CHAPTER 3 - Installation
Mother board interconnections
Dimensioning with three phase power supply
FILTERS
CAPACITORS
NOTE N.B. If during the deceleration phase, green OK led switch
off,voltage between positive and negative is excessive;therefore
we must increasing the capacitor or use the regenerative circuit.
This modules are recommended specially with MS 140 and MS
200.
DISCHARGE
RESISTANCE
See chapter “single phase power supply”.
Rated voltage: 100 VDC per MS 60
200 VDC per MS 140
300 VDC per MS 200
Capacitor:the capacitor,filters the voltage from single phase
bridge and recoveries the energy from the motor during the
deceleration phase.
capacitorʼs value can be obtained with following formula:
where:
V2 = voltage between positive and negative capacitor without
load.Multiplicative factor must be 2000 in the foloows cases:
a) Load inertia bigger than motor inertia.
b) Power supply voltage VDC bigger than 50V x MS 60
Power supply voltage VDC bigger than 150V x MS 140
Power supply voltage VDC bigger than 230V x MS 200
C (mF) = P (VA) transf. x 1000
V2
(The capacitor must be
for switching application)

Service Guide MINI SPEED
Service Guide MINI SPEED
High Performans servo Drives
AXOR
High Performans servo Drives
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
CHAPTER 3 - Installation 
CHAPTER 3 - Installation
3.2 Cooling
Minispeed amplifier should be
installed to allow a proper heatsink
cooling.
Only position accepted in the
equipment is vertical mounting.
It is important, for proper natural convection cooling, avoid to put other objects above
the amplifier.
Using the amplifier in dusty ambient,it is important that the doors of boxes containing
electronic equipment be kept closed and air must be filtered avoid the entry of contaminants
and conductive particles wich can cause extensive damages.
Every amplifier is provided with a thermoswitch that opens when the temperature exceeds
a safe operating level,S.T. protections will be memorized.
The fault canʼt be reset.We must wait until the heatsink temperature is lower.
If we use intensively the amplifier with high room temperature ambient and quick step
we must provide for forced cooling.
NOTE: In case of forced cooling requirement the ventilator it should be installed at the
bottom of the amplifier under the relative units.
Max. Ambient temperature C°
NOTE
3.3 Wiring
Minispeed amplifier has several wiring connections which must be made in order to ensure
the correct operation for reduce interferences.
Use shielded cable for analogue and tacho signal.(For wiring connections see page 20)
Signals cables must be not togheter power wires signals cable output should be own
upper side power wiring output twisted togheter should be on lower side.
AXOR advise:
0,5 / 1 mm2for signal cables, 2mm2for power cables MS 4/8A e 8/16A , 2,5 / 3 mm2
for power cables MS 10/20A e 14/28A, 4mm2for power cables MS 20/40A and 25/50A.
COOLIING
MS 60 14/28
MS 60 10/20
MS 60 8/16
10
2
4
6
8
1
0
1
2
1
4
20 30 40 50 60 70 80 90
(
A
)
MS 60 4/8
CROSSING POINT BETEEWN
VENTILATED AND NATURAL
CONVENCTION CURVES OF
THE SAME DRIVER SIZE
NATURAL CONVENCTION
WITH FAN
Derating curves
MS 140 10/20
MS 140 14/28
MS 140 8/16
10
2
4
6
8
10
1
2
1
4
20 30 40 50 60 70 80 90
(
A
)
MS 140 14/28
MS 140 10/20
MS 140 4/8
MS 200 14/28
MS 200 10/20
MS 200 8/16
10
2
4
6
8
1
0
12
1
4
20 30 40 50 60 70 80 90
(
A
)
MS 200 14/28
MS 200 4/8
MS 200 8/16
MS 200 10/20
CROSSING POINT BETEEWN
VENTILATED AND NATURAL
CONVENCTION CURVES OF
THE SAME DRIVER SIZE
NATURAL CONVENCTION
CROSSING POINT BETEEWN
VENTILATED AND NATURAL
CONVENCTION CURVES OF
THE SAME DRIVER SIZE
NATURAL CONVENCTION
Max. Ambient temperature C°
Max. Ambient temperature C°

Service Guide MINI SPEED
Service Guide MINI SPEED
High Performans servo Drives
AXOR
High Performans servo Drives
AXOR

CHAPTER 3 - Installation 
CHAPTER 3 - Installation
3.2 Cooling
Minispeed amplifier should be
installed to allow a proper heatsink
cooling.
Only position accepted in the
equipment is vertical mounting.
It is important, for proper natural convection cooling, avoid to put other objects above
the amplifier.
Using the amplifier in dusty ambient,it is important that the doors of boxes containing
electronic equipment be kept closed and air must be filtered avoid the entry of contaminants
and conductive particles wich can cause extensive damages.
Every amplifier is provided with a thermoswitch that opens when the temperature exceeds
a safe operating level,S.T. protections will be memorized.
The fault canʼt be reset.We must wait until the heatsink temperature is lower.
If we use intensively the amplifier with high room temperature ambient and quick step
we must provide for forced cooling.
NOTE: In case of forced cooling requirement the ventilator it should be installed at the
bottom of the amplifier under the relative units.
Max. Ambient temperature C°
NOTE
3.3 Wiring
Minispeed amplifier has several wiring connections which must be made in order to ensure
the correct operation for reduce interferences.
Use shielded cable for analogue and tacho signal.(For wiring connections see page 20)
Signals cables must be not togheter power wires signals cable output should be own
upper side power wiring output twisted togheter should be on lower side.
AXOR advise:
0,5 / 1 mm2for signal cables, 2mm2for power cables MS 4/8A e 8/16A , 2,5 / 3 mm2
for power cables MS 10/20A e 14/28A, 4mm2for power cables MS 20/40A and 25/50A.
COOLIING
MS 60 14/28
MS 60 10/20
MS 60 8/16
10
2
4
6
8
1
0
1
2
1
4
20 30 40 50 60 70 80 90
(
A
)
MS 60 4/8
CROSSING POINT BETEEWN
VENTILATED AND NATURAL
CONVENCTION CURVES OF
THE SAME DRIVER SIZE
NATURAL CONVENCTION
WITH FAN
Derating curves
MS 140 10/20
MS 140 14/28
MS 140 8/16
10
2
4
6
8
10
1
2
1
4
20 30 40 50 60 70 80 90
(
A
)
MS 140 14/28
MS 140 10/20
MS 140 4/8
MS 200 14/28
MS 200 10/20
MS 200 8/16
10
2
4
6
8
1
0
12
1
4
20 30 40 50 60 70 80 90
(
A
)
MS 200 14/28
MS 200 4/8
MS 200 8/16
MS 200 10/20
CROSSING POINT BETEEWN
VENTILATED AND NATURAL
CONVENCTION CURVES OF
THE SAME DRIVER SIZE
NATURAL CONVENCTION
CROSSING POINT BETEEWN
VENTILATED AND NATURAL
CONVENCTION CURVES OF
THE SAME DRIVER SIZE
NATURAL CONVENCTION
Max. Ambient temperature C°
Max. Ambient temperature C°

Service Guide MINI SPEED
Service Guide MINI SPEED
High Performans servo Drives
AXOR
High Performans servo Drives
AXOR



CHAPTER 3 - Installation 
CHAPTER 3 - Installation
Mother board interconnections
Dimensioning with three phase power supply
FILTERS
CAPACITORS
NOTE N.B. If during the deceleration phase, green OK led switch
off,voltage between positive and negative is excessive;therefore
we must increasing the capacitor or use the regenerative circuit.
This modules are recommended specially with MS 140 and MS
200.
DISCHARGE
RESISTANCE
See chapter “single phase power supply”.
Rated voltage: 100 VDC per MS 60
200 VDC per MS 140
300 VDC per MS 200
Capacitor:the capacitor,filters the voltage from single phase
bridge and recoveries the energy from the motor during the
deceleration phase.
capacitorʼs value can be obtained with following formula:
where:
V2 = voltage between positive and negative capacitor without
load.Multiplicative factor must be 2000 in the foloows cases:
a) Load inertia bigger than motor inertia.
b) Power supply voltage VDC bigger than 50V x MS 60
Power supply voltage VDC bigger than 150V x MS 140
Power supply voltage VDC bigger than 230V x MS 200
C (mF) = P (VA) transf. x 1000
V2
(The capacitor must be
for switching application)