Rowan Elettronica 390S.B User manual

INSTRUCTIONMANUAL
Cod.390S.B
UNIDIRECTIONAL DRIVE
FOR ROWAN THREEPHASE HIGH SLIP MOTORS
EMC
CONFORMITY
Motori,azionamenti,accessorieserviziperl'automazione
Via Ugo Foscolo, 20 - CALDOGNO - VICENZA - ITALIA
Tel.: [phone] - 905566 (4 linee r.a.)
Fax: [phone] - 905593
E-mail: [email protected] - URL:\\ www.rowan.it
REV. 7 - Date 03/07/2018 Data Controllato/Approvato

ROWANELETTRONICAs.r.l.-ViaUgofoscolo,20-36030CALDOGNO(Vicenza)
page 2 out of 24
INDEX
Card description:
Technical characteristics – Overall dimensions...........................................................................................pag. 3
Operating principles .....................................................................................................................................pag. 4
Main connecting diagrams with led and trimmer position ...........................................................................pag. 4
Description of the service terminal board– Description of the power terminal board ................................pag. 5
Trimmer description ......................................................................................................................................pag. 6
Microswitch description ................................................................................................................................pag. 7
Display description .......................................................................................................................................pag. 8
How to connect Rowan motors:
Connecting the motor power terminal board ...............................................................................................pag. 8
Motor protecting circuit breaker table and table of the power used by the cooling fan ..............................pag. 8
Connecting the terminal board to the motor services .................................................................................pag. 9
Connecting the brake; table giving the power used by the 24 VDC brake..................................................pag. 9
Instructions for correct installation:
Mechanical installation .................................................................................................................................pag. 10
Electrical protections ....................................................................................................................................pag. 10
Cabling system and electromagnetic compatibility .....................................................................................pag. 10
Setting at work..............................................................................................................................................pag. 11
Troubleshooting ............................................................................................................................................pag. 12
Standard settings and calibration ................................................................................................................pag. 12
Application diagrams:
Diagram 1: speed control in both rotational senses with potentiometer ....................................................pag. 13
Diagram 2: speed and couple control with amperometric feedback ..........................................................pag. 14
Diagram 3: code 390S connection to a double speed motor .....................................................................pag. 15
Diagram 4: automation for aerial transport lines with connection of two (or more) motors in parallel......pag. 16
Diagrams to replace the cards series which are no longer produced:
Instructions and diagrams for the replacement of codes 290 and 290R with code 390S..........................pag. 17
Instructions and diagrams for the replacement of code 240 with code 390S.............................................pag. 18
Instructions and diagrams for the replacement of code 140 with code 390S.............................................pag. 19
Block diagram ...............................................................................................................................................pag. 20
Circuit silk screening ....................................................................................................................................pag. 21
Instructions for the maintenance of Rowan motors .....................................................................................pag. 22
TRANSLATION OF THE DESIGN TEXT .....................................................................................................pag. 23
Warning !
-ROWAN ELETTRONICA s.r.l. declines any responsibility for any inaccuracies contained in this manual, due to
printing and/or transcription errors. ROWAN ELETTRONICA s.r.l. reserves the right to make any variations that
it considers necessary for better functioning of the product, without prior notification.
-Regardingthe dataand characteristicsmentioned inthe manual,a maximumtolerance of10% hasbeen allowed,
if not otherwise indicated.
-The product guaranty is considered ex-works and is valid 6 months from the date of leaving ROWAN
ELETTRONICA s.r.l.
-The electrical equipment could create dangerous situations for the safety of both personnel and objects; the user
is responsible for the installation of the equipment and for the conformity of the installation with the regulations in
force.
-The diagrams contained in this manual are mere examples and should be perfected by the customer according to
their specific needs.
-The equipment must be installed only by qualified personnel, after having read and understood this manual.
In case of doubt, the supplier should be contacted.

ROWANELETTRONICAs.r.l.-ViaUgofoscolo,20-36030CALDOGNO(Vicenza)
page 3 out of 24
CODE 390S.B
UNIDIRECTIONALDRIVE FOR ROWANTHREE-PHASEHIGHSLIP MOTORS
Technical characteristics
-CE product
Unidirectional drive for Rowan three-phase high slip motors (A series) with a maximum power of 3kW at 400VAC
and 1.5kW at 230VAC.
-Standardcommutable supply limits: 170/260VAC and 330/500VAC,frequency 50/60Hz.
-Pre-set for speed control of Rowan 2-4-6-pole motors equipped with tachometrical dynamo of the 20VDC at 2800
revs./min. type.
-Operateswith linear accelerationand deceleration ramps which areadjustable from 0.02sec. to 25sec.,with automatic
insertion of direct current braking with inertial loads. Direct current braking can be excluded.
-Speed adjustment with 3-wire potentiometer (min. 2Kohm, max. 100Kohm), or 0 ÷ +10VDC differential signal. Speed
adjustment with 2-wire potentiometer is also possible, but only if 10Kohm.
-Maximum current adjustment (maximum couple) using an internal trimmer, 10Kohm external potentiometer or 0 ÷
10VDC signal. An amperometric transformer (TA) which reveals the current absorbed by the motor should be
connected to adjust the current. The TA should have a maximum output of 4VAC/0.2A.
-Maximum voltage adjustment for ALQUIST type operation, in the case of motors for winders.
-Running permission input (PNP/NPN).
-Stop in ramp input (PNP/NPN)
-Tachometrical dynamo differential input
-Emergency contact output, can be delayed from 1 sec to 15 sec because of overload, absence of line and motor
phase, absence of tachometrical dynamo and inverted tachometric polarity if the internal precision rectifier is not
used.
-Led display of the running, stop in ramp, emergency, motor rotating, braking, power on functions.
-Adjustment of the stability (from trimmer), acceleration ramp, deceleration ramp, maximum revs., minimum revs.,
maximum couple.
-Logical parts and controlling circuits protected with 0.5A fuses.
-Connection power and control terminal boards.
-Working temperature external to the cabinet: -5°C to +40°C; internal to the cabinet: -5°C to +55°C;
-Storage temperature: -25°C to +70°C
-Relative uncondensed humidity: 5 to 95%
-Singleversion in an IP20 aluminiumcontainer, silk-screened with useful diagramsfor operation control and calibration;
base dimensions and fixing template interchangeable with the two-way 380S/0 drive.
In conformity with the following norms: CEI EN 60204-1 EN 50081-2 EN50082-2 EN 61800-3
CAUTION: Accordance with the mentioned norms depends on the connection of the separately supplied filtering devices
and the scrupulous observance of the instructions given on page 10 by the installer.
OVERALL DIMENSIONS (measurements in mm)
SESUFDEDNEMMOCERDNAREWOPMUMIXAMFOELBAT
EDOC REWOPMUMIXAM )V042(V032ENIL
REWOPMUMIXAM V004ENIL )V064-044-514(
EPYTLGDIPAR DEDNEMMOCER SESUF
TEN THGIEW
PH Wk PH Wk A gK
S093
2 5,1 4 3 02 56,1

ROWANELETTRONICAs.r.l.-ViaUgofoscolo,20-36030CALDOGNO(Vicenza)
page 4 out of 24
OPERATING PRINCIPLES
The 390S drive was designed to control the speed of Rowan high slip motors (S series) equipped with tachometrical
dynamo. It is a three-phase current adjuster with tachometric feedback which uses controlled diodes (SCR) piloted by
the system with thyristore for phase control. The voltage which pilots the motor comes from an analogue process
which keeps the revolutions constant by means of differential control between the real speed reference extracted by the
tachometrical dynamo and the speed set by the potentiometer or external analogue voltage.
When combined with a Rowan threephase high slip motor, the result is a fast system with constant couple that is
extremely quiet and uniform, from zero to maximum motor revolutions.
The choice of the controlled diodes for the power part (already overdimensioned) guarantees reliability in the case of
extra voltages or extra currents. The rotational direction of the motor is selected by exchanging 2 phases of either the
supply card or the motor itself, as is done with standard threephase asynchronous motors (to check the rotational direction
with a +10VDC signal use the 380S type bidirectional drive).
It is also possible to adjust the acceleration and deceleration ramps according to the needs of the device moved by the
Rowan threephase motor. Dc braking (which is also valid for low inertia loads or limited braking needs) starts automatically
if the ramp time of deceleration ramps with inertial loads is not respected. If the contrary is necessary, a 380S type two-
way drive should be installed. With the 390S drive it is possible to carry out combined couple-revolution control of the
Rowan three-phase motor, which can, consequently, work as an electromagnetic brake or gear. Because of this, the
combination of a 390S drive and a Rowan high slip motor could be used with excellent results in moving winders/
unwinders.
MAIN CONNECTING DIAGRAM WITH TRIMMER AND LED POSITIONS
MARCIA
STOPINRAMPA
EMERGENZA
MOTORE IN ROTAZIONE
FRENATA
POWER ON
Inner RE excited when
drive is supplied and not
in emergency (contact
closed between 9 and 12
terminals)

ROWANELETTRONICAs.r.l.-ViaUgofoscolo,20-36030CALDOGNO(Vicenza)
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DESCRIPTION OF THE SERVICE TERMINAL BOARD
1 - 2 Tachometrical dynamo differential input 10VDC / 1400r/m (20VDC / 2800r/m).
3+10VDC reference to supply couple/turn adjustment potentiometers (max. load 5mA).
7Common negative 0VDC reference
10 Reference for connection of the external emergency relay, type 24VDC/max. 50mA
4 - 7 Stop in ramp contact connection in NPN logic (micro S11 closed): active when contact is close
4 - 10 Stop in ramp contact connection in PNP logic (micro S11 open): active when contact is open.When
stop in ramp is active, the L5 pilot light lights up and provokes the controlled deceleration ramp descent of
the motor until zero revs.. When stop in ramp is inactive, the motor starts in acceleration ramp at the
maximum speed set.
5 - 7 Running contact connection in NPN logic (micro S11 closed): active when contact is open
5 - 10 Running contact connection in PNP logic (micro S11 open): active when contact is closed. When running
is active the L6 pilot light lights up and starts the motor in acceleration ramp at the maximum set speed.
When running is inactive motor voltage is statically removed.
3 extreme
6 cursor
7 extreme
7 extreme
6 cursor
14 (0V) – 13(positive) Speed adjustment differential signal input 0/+10VDC from PLC or Rowan interface cards (input
resistance 100Kohm), micro S12 open
3 extreme
8 cursor
7 extreme
7 (0V) – 11 (positive) Maximumvoltage adjustment signal input0/+10VDC tothe motor(max. current with TA connected
to terminals 7-15) from PLC or Rowan interface cards (input resistance 100Kohm); micro S8 open – S9
closed.
9 - 12 Internal emergency relay contact (see page 4 for type of connection)
7 - 15 Amperometric transformer (TA) connection for maximum current feedback control of the motor. Input set for
TAs of the type with maximum output 4VAC/0.2A.
DESCRIPTION OF THE POWER TERMINAL BOARD
PE EMI filter earth connection; connect to the main protection conductor in combination with the line inductor to
reduce the conducted emissions (see correct installation instructions on page 8).
Warning! The anti EMI filter works with a small current dispersion towards earth which, at the moment of
supply, could cause very sensitive differentials to intervene. It is therefore advisable to use differentials for
variable currents.
R1-S1-T1 Threephasesupply line. Be careful to pre-set the voltage change correctly before supplying these terminals
(see setting at work instructions on page 9).
U1-V1-W1 Output adjusted to the load. Pre-set a star or delta load according to the information on the plates and the
supply voltage.
3-wire speed adjustment potentiometer connection (micro S1 open – S12 closed)
(resistive values from 2 to 100Kohm in line with the maximum load connectable to terminal 3).
2-wire speed adjustment potentiometer connection (micro S1 closed)
(only10Kohm).
Maximumvoltage adjustment potentiometerconnectiontothemotor(max.currentwith TAconnected
toterminals7-15) (resistive values from 2 to100Kohm in line with the max.load connectable to terminal 3);
micro S8 open – S9 closed.

ROWANELETTRONICAs.r.l.-ViaUgofoscolo,20-36030CALDOGNO(Vicenza)
page 6 out of 24
STANDARD SETTINGS
The code 390S card comes out of the Rowan laboratories tested and set as follows:
-Supply set for a supply range of 330VAC÷500VAC
-3 wire turn adjustment potentiometer connection - S1 open
-Ramp range – minimum 0.02 sec. - maximum 2 sec. - S2 open
-4-pole motor – S3 closed
-Polarity rectifier on – S5 closed – S4 open
-DC braking off – S10 closed / Couple limitation off - S9 open – the remaining micros: S7 open, S6-S8-S11-S12
closed.
STANDARD CALIBRATION
Minimum speed 0 rpm
Maximum speed 1400 rpm
Acceleration/deceleration ramps 2 seconds
TRIMMER DESCRIPTION
TRIMMERS THAT CAN BE REACHED WITHOUT REMOVING THE COVER
P1 Deceleration: adjusts the deceleration ramp time in the following adjustment ranges:
with micro S2 open – minimum 0.02 sec. – maximum 2 sec.
with micro S2 closed – minimum 0.25 sec. – maximum 25 sec.
If turned in a clockwise direction the time is increased.
P2 Acceleration: adjusts the acceleration speed ramp in the following adjustment ranges:
with micro S2 open – minimum 0.02 sec. – maximum 2 sec.
with micro S2 closed – minimum 0.25 sec. – maximum 25 sec.
If turned in a clockwise direction the time is increased.
P3 Maximum revs.: adjusts the maximum speed of the motor with the turn adjustment potentiometer or
differential speed control input signal = +10VDC. Turning in a clockwise direction increases the speed.
P5 Minimum revs.: adjusts the minimum speed of the motor with a minimum turn adjustment potentiometer
at maximum or when the differential speed control input signal = 0VDC. Standard adjustment for motionless
motors. Turning in a clockwise direction increases the speed.
P8 Stability: turning in a clockwise direction stabilises possible motor speed oscillation due to particularly
unstable loads. (With micros S6 and 7 closed, the proportional gain of the speed control in closed loop
lowers).
P9 Maximum couple adjustment: adjusting in a clockwise direction increases the voltage/current to the
motor (only active if couple limitation is inserted and micros S9 and S8 are closed).
TRIMMERS THAT CAN BE REACHED BY REMOVING THE COVER (only for authorised personnel)
P4 Internal precalibration for the maximum speed of 4-pole motors.
P6 Regulating in a clockwise direction increases the P8 stabilising effect.
P7 Internal precalibration. Do not touch.
P10 Maximum dc braking adjustment.
P11 Minimum couple adjustment: turning in a clockwise direction increases the voltage/current to the motor
with reference on terminals 8 or 11 at 0VDC (only active if couple limitation is inserted with micros S9 and
S8 closed).
P12 EMERGENCY intervention delay adjustment (minimum 1 sec. maximum 15 sec. when turned fully clockwise)
standard calibration 8 sec.

ROWANELETTRONICAs.r.l.-ViaUgofoscolo,20-36030CALDOGNO(Vicenza)
page 7 out of 24
MICROSWITCH DESCRIPTION
Operations to be carried out when the CARD IS NOT SUPPLIED WITH CURRENT
To reach the micro open the silk-screened cover – the micros can all be found in the upper card
S1 Closed: prepares for 2-wire external turn adjustment potentiometer connection to terminals 6 – 7.
Open: prepares for 3-wire external turn adjustment potentiometer connection to terminals 3-6-7.
S2 Open: establishes the adjustment range of the acceleration and deceleration ramps, minimum 0.02 sec.,
maximum 2 sec.
Closed: stabilises the adjustment range of the acceleration and deceleration ramps, minimum 0.25 sec.,
maximum 25 sec.
S3 Open: prepares the card for the connection of a 2-pole motor
Closed: prepares the card for 4-6-pole motor connection. In the case of 6-pole motors, it is necessary to
recalibrate the maximum speed using the P4 trimmer. With the turn adjustment potentiometer at
maximum or when the differential signal is at +10VDC, adjust P4 in a clockwise direction until the
tachometrical dynamo measures a continuous voltage of approx. 5.7 VDC, which corresponds to
maximum speed of 800 r/m
S4 Closed
S5 Open
S4 Open
S5 Closed
S6 Open: Establishes a proportional gain on the speed control in closed loop which permits a maximum error on
motor turn variation from empty to full load of 2 r/m (only with trimmer P8 in the standard position).
S6 Closed: Establishes a proportional gain on the speed control in closed loop which permits a maximum error on
motor revolution variation from empty to full load of 15 r/m (only with trimmer P8 in the standard position).
S7 Closed: Further reduces the proportional gain (close if it is not possible to eliminate speed oscillations with the
stability trimmer).
S8 Closed: In the case of internal motor voltage limitation (current if TA is connected) with the P9 trimmer.
S8 Open: In the case of external motor voltage limitation (current if TA is connected) with the potentiometer
or DC signal.
S9 Open: Excludes motor voltage limitation (current if TA is connected).
S10 Closed: Excludes DC braking
S11 Closed: Prepares the RUNNING and STOP IN RAMP inputs for control by NPN logic
S11 Open: Prepares the RUNNING and STOP IN RAMP inputs for control by PNP logic
S12 Closed: In the case of speed adjustment by potentiometer connected to terminals 3-6-7.
S12Open: In the case of speed adjustment by differential dc signal connected to terminals 13-14.
Exclude the tachometrical dynamo polarity rectifying circuit
(Necessary when a card is used in pulling or dragging systems for winders/unwinders)
The tachometrical dynamo polarity rectifying circuit is inserted and the card is prepared to work
with the motor in the 2 rotational directions without having to invert the dynamo polarity.
}
}

ROWANELETTRONICAs.r.l.-ViaUgofoscolo,20-36030CALDOGNO(Vicenza)
page 8 out of 24
DISPLAY DESCRIPTION
L1 Power on when lit indicates that supply is present at the card and the controlling circuits.
L2 Braking when lit indicates direct current braking.
L3 Motor turning when lit during motor rotation, indicates dynamo voltage presence at terminals 1 and 2.
L4 Emergency when lit indicates an irregular situation due to: overload, absence of on-line and motor
phase, absence of a tachometrical dynamo, or tachometric polarity inverted if the internal
precision rectifying device has not been used. In this case, the motor cannot rotate and
the externally connected emergency relay is commanded. This situation is self-maintained
and can only be unblocked by removing current from the card. If the L4 pilot light lights
up, consult the “TROUBLESHOOTING ” paragraph on page 12.
L5 Stop in ramp when lit indicates the presence of an active command at terminal 4. In this case the
motor stops with the deceleration ramp set up to zero revs.; the led must be switched off
for the motor to start again.
L6 Running when lit indicates the presence of an active command at terminal 5. In this case the
motor can rotate;
when unlit indicates that the motor cannot rotate.
INSTRUCTIONS FOR CONNECTING ROWAN MOTORS
CONNECTING THE POWER TERMINAL BOARD
Even if power terminal board connection goes through the speed control drive, it remains the same as a normal threephase
asynchronous motor, therefore if the following is written on the motor plate,follow the relative instructions:
ELECTRICAL CHARACTERISTICS TABLE OF THE MOTORS THAT CAN BE FIT TO THE 390S BOARD
The motor protecting circuit breaker should be calibrated for a current which is 15% higher than the nominal one. For
motors with line voltages of 240-415-440-460V, the relevant absorption data can be obtained by taking the 400V line
voltage figures and proportionally calculating the line voltage of the motor to be used.
EZISROTOM
WK
ROTOM
CEM
DETARROTOM
TNERRUC
nI
foREWOP
NOITALITNEV
V032 V004 LAIXA LLORCS
PH WK A A AV AV
51,0 11,0 36 6,1 9,0 61 04
52,0 81,0 17 9,1 1,1 61 04
5,0 73,0 08 1,3 8,1 61 04
1 57,0 09 6 5,3 91 55
2 5,1 001 11 5,6 04 55
3 2,2 211 * 9 04 001
4 3 L211 * 21 04 001
WITHLINE 230VAC,
THECONNECTION
IS
WITHLINE 400VAC,
THECONNECTION
IS
WITHLINE 400VAC,
THECONNECTION
IS
230 400 230 400 400

ROWANELETTRONICAs.r.l.-ViaUgofoscolo,20-36030CALDOGNO(Vicenza)
page 9 out of 24
CONNECTING THE TERMINAL BOARD TO THE MOTOR SERVICES
1 - 2 Tachometrical dynamo: itispossible toextract thetachometrical dynamo
voltage that is keyed to the motor shaft from these terminals. The dynamo
supplies a continuous voltage equal to 20VDC at 2800r/m directly proportional
with the motor speed. Because of this (and also because it is connected to the
drive for motor speed control) it can be used for analogue counters with display
or other servomechanisms, as long as the total load is not above 3Kohm
(maximum dynamo current 10mA). In order to avoid disturbances it is always
opportune to connect the tachometrical dynamo with screened cable, above
all when the paths are long and close to power cables.
3 - 4 Fan: these terminals have to be supplied with a 230VAC voltage for separate motor ventilation. They should be
supplied in a manner that ensures ventilation even when the motor is stopped in order to exploit the moments of pause
for cooling. Some highly powered Rowan motors equipped with threephase cochlear fan are supplied directly by the fan
motor terminal board. Consult the table on page 8 to see the powers used by the fans.
5 - 6 Temperature probe: this is a Normally Closed contact that opens when the temperature of the motor windings
exceeds 150°C, a safety limit corresponding to class H (180°C). This probe is used as an emergency to deactivate the
electromagnetic running switch. Keep in mind that the maximum capacity of the contact is 1A-230VAC.
Caution! Terminals 5-6 are not present on the ROWAN MEC 63 motor service terminal board (the 63 motor is not
equipped with thermal probe).
CONNECTING THE BRAKE
Rowan motors may be supplied, on request, with an electromagnetic brake. This would mean a purposely built motor
witha lengthened axleand brake fitted to thefront part, supported by abell shaped cover that reproducesnormal flanging.
The brake is a Spring type: it is necessary to remove the brake power supply to stop the motor axle. It is used as a safety
brake if the power supply should be lost, in the case of over head loads such as bridge cranes, cranes etc. (verify whether
it would be necessary to adapt the air gap at 0,3mm ± 0,005).
This brake operates at 24VDC and is powered by a single connector or a connector found on the bell shaped front brake
holder.It isalways convenientto connecta diodeor R/C in parallel to the brake, above all when close to equipments which
are particularly subject to interferences.
It is necessary to bear in mind that the flywheel diode has a maximum filtering efficiency, but it delays spring
brake insertion.
Note: for a better use of the brake, Rowan Elettronica suggests the following connection to the C321S device:
Thisdevicegivesa33÷37Vdcstartingvoltageandasucceeding21÷23Vdcmaintainancevoltage.Inthiswaythebrakereleaseissped
andtheovertemperature,duringthecontinuousservice,isavoided.
TABLE GIVING THE POWER USED BY THE 24VDC BRAKE
SEDOCNOITACIFITNEDIdnaSCITSIRETCARAHCNOITBROSBA/EUQROTSEKARB
ROTOM
EKARBGNIRPS
EUQROT NOITBROSBA .DOCNAWOR GNIKCOLBNU REVEL
EKARB GNITRATS EMIT
EKARB GNIPPOTS EMIT
mN W .doC .doC sm sm
17/36 4 02
10K1736MRF
/ 71 53
08 8 52
20K08MRF
/ 53 56
001/09 02 03
40K11019MRF 40K11019AVEL
04 09
L211/211 03 04
50K211MRF 50K211AVEL
05 021
L231-231 L061-061 08 55
70K.6131.MRF 70K6131AVEL
BRAKE
BRAKE
command
FAN
DYNAMO TEMP.PROBE

ROWANELETTRONICAs.r.l.-ViaUgofoscolo,20-36030CALDOGNO(Vicenza)
page 10 out of 24
INSTRUCTIONS FOR CORRECT INSTALLATION
MECHANICAL INSTALLATION
Install the drive keeping in mind the following points:
-Verify that the characteristics of the place where the drive is to be placed is within the environmental characteristics given on
page 3 (temperature-humidity-protection grade).
- Favour a cooling airflow as much as possible. Do not place the drives one above the other. Leave a space of at least 100
mm above and below the drive, and one of at least 50 mm on both sides.
- Avoid vibrations and excessive impacts.
- Leave enough space for the possible installation of anti EMI filters (see following paragraph).
The code 390S card works correctly when the container temperature and the temperature inside its housing panel is
between–5°C and +55°C. Higher or lower temperaturescouldincite operational irregularities or drifts in speedcontrol
and breakage if the temperature is very high. It is therefore advisable to position the cards far from heat sources and
ventilate the panel when the environmental temperature is high.
ELECTRICAL PROTECTIONS
The code 390S card is equipped with a protecting device which intervenes when the motor is out of tachometric control i.e. in
cases of overload, lack of line and motor phase, in the absence of a tachometrical dynamo and inverted tachometric polarity
if the internal precision rectifying device is not being used. The emergency intervention does not let the motor rotate and
commands the emergency relay connected externally. The card controlling circuit is also protected by a triad of 0.5A fuses
housed in the lower card which carries the power terminal board. It is necessary to install power amperometric connections
in the form of external 20A fuses for short circuits of the GL RAPIDI type, and a relay calculated for a current which is 15%
higher than the nominal one.
As an alternative to the thermal relay, a circuit breaker sensor could be incorporated into the motor.
Use relays with low current contacts for the running and stop in ramp commands or to select potentiometers or DC signals.
Avoid using the auxiliary contacts of the electromagnetic switches for this type of operation, but if this is necessary wind the
contacts together.
CABLING SYSTEM AND ELECTROMAGNETIC COMPATIBILITY
In order to limit disturbances induced in the connecting cables as much as possible:
-
Avoid passing the control terminal board connecting cables in the same channel as the power connecting cables
-Connect potentiometers, tachometrical dynamo and DC signals with screened cable
-Connect an end of each card singularly to the common earth point of the panel.
-Avoid earth loops.
-To limit emissions conducted on the supply line and to better immunity towards disturbances of the same type, connect
the filter inducer and connect the terminals indicated and to the common earth point.
Warning! The anti EMI filter works with a small current dispersion towards earth which, at the moment of supply, could cause
very sensitive differentials to intervene. It is advisable, therefore, to use differentials for variable currents.
Upon request Rowan Elettronica can supply the complete ANTI EMI filter: the inductors are chosen according to the nominal
current of the applied Rowan motor, or to the total of several motors. A single inductor can serve several drives in parallel.
If a power factor improvement circuit is to be applied, it must be inserted upstream of the ANTI EMI filter, but the emission
reduction effect will be eliminated. Inserting power factor improvement capacitors also further reduces EMI emissions.
CODES AND CHARACTERISTICS OF THE ANTI E.M.I. THREEPHASE INDUCTORS
EDOC MUMIXAM TNERRUC ( )A
ECNADEPMI ( )Hm )mm(SNOISNEMID
H B L
5,1.A01.TPMI 01 5.1 521 56 021
90.A02.TPMI 02 9.0 051 57 051
FORMOTORS MEC63ONLY
FORMOTORS MEC63ONLY
RE-PHASING CAPACITOR
SPECIAL SWITCH
for CAPACITORS
INSERTION
Telemecanique LC1
DFK11 type