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Digitax ST Installation Guide

23

Issue: 2

www.controltechniques.com

Sa
fe

ty

 Informa

tio

n

Introd

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ical Inst

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ectrical

 Inst

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Recommended cable 

The recommended cable for feedback signals are shielded twisted pairs, shielded with 
an overall shield as shown in Figure 4-10 

Figure 4-10 Feedback Cable, Twisted Pairs

Using this type of cable also allows for the connection of the outer shield to ground and 
the inner shields to 0V alone at both drive and encoder end, when required.

Figure 4-11 Feedback cable connections

Figure 4-12 Location of encoder connectors on underside of drive

Twisted

pair

cable

Twisted pair shield

Cable

Cable overall shield

Ensure that feedback cables are kept as far away as possible from power cables and 
avoid parallel routing.

NOTE

Cable

Cable 
shield

Twisted 

pair 

shield

Cable 
shield

Twisted 

pair 

shield

Connection

at motor

Connection

at drive

Ground clamp or 

grounding bracket on shield

Shield 

connection

to 0V

Shield 

connection

to 0V

5
10

15

1

6

11

Drive encoder connector

Female 15-way D-type

Encoder

input

Buffered

encoder

output

Summary of Contents for digitax st series

Page 1: ...Installation Guide Part Number 0475 0000 02 Issue 2 www controltechniques com ...

Page 2: ...eir life cycle To this end we operate an Environmental Management System EMS which is certified to the International Standard ISO 14001 Further information on the EMS our Environment Policy and other relevant information is available on request or can be found at www greendrives com The electronic variable speed drives manufactured by Control Techniques have the potential to save energy and throug...

Page 3: ...l limits 6 1 5 Compliance with regulations 6 1 6 Motor 6 1 7 Adjusting parameters 6 1 8 Electrical installation 6 2 Introduction 8 2 1 Features of the drive 9 2 2 Items supplied with the drive 9 3 Mechanical Installation 11 3 1 Drive 11 3 2 Braking 13 3 3 External EMC filter 14 4 Electrical Installation 15 4 1 Power terminal connections 15 4 2 Ground leakage 17 4 3 EMC 18 4 4 Control terminals 21 ...

Page 4: ...ers who are familiar with requirements for safety and EMC The assembler is responsible for ensuring that the end product or system complies with all the relevant laws in the country where it is to be used Refer to the User Guide An EMC Data Sheet is also available giving detailed EMC information DST1201 DST1202 DST1203 DST1204 DST1401 DST1402 DST1403 DST1404 DST1405 EN 61800 5 1 Adjustable speed e...

Page 5: ...ad this safety information and this guide carefully The STOP and SAFE TORQUE OFF functions of the drive do not isolate dangerous voltages from the output of the drive or from any external option unit The supply must be disconnected by an approved electrical isolation device before gaining access to the electrical connections With the sole exception of the SAFE TORQUE OFF function none of the drive...

Page 6: ...ply with the following directives 98 37 EC Safety of machinery 89 336 EEC Electromagnetic Compatibility 1 6 Motor Ensure the motor is installed in accordance with the manufacturer s recommendations Ensure the motor shaft is not exposed The values of the motor parameters set in the drive affect the protection of the motor The default values in the drive should not be relied upon It is essential tha...

Page 7: ...nk immediately it is possible the capacitors will not be discharged In this case consult Control Techniques or their authorised distributor 1 8 5 Equipment supplied by plug and socket Special attention must be given if the drive is installed in equipment which is connected to the AC supply by a plug and socket The AC supply terminals of the drive are connected to the internal capacitors through re...

Page 8: ...available on the Digitax ST Indexer drive with the addition of performing complex motion as a single axis or synchronised to a reference axis This offers digital lock and electronic camming via a virtual master reference The Digitax ST EZMotion drive is part of the Motion Made Easy family of servo drives and allows the user to create programs to sequence motion I O control and other machine operat...

Page 9: ...le slot 2 cover Solutions Module slot 1 cover Buffered encoder output Encoder In connection Motor connections Line to ground varistor screw AC supply 48V connection for low voltage DC operation Braking resistor connections SMARTCARD slot Serial port connector Control terminals Relay terminal Keypad connection EMC bracket Ground screw EMC bracket Ground screw Status LED Marker tag location Internal...

Page 10: ...10 Digitax ST Installation Guide www controltechniques com Issue 2 Figure 2 2 Accessory box contents Ground screws Grounding bracket Cable guides Control connectors Relay connector ...

Page 11: ...ed to be mounted in an enclosure which prevents access except by trained and authorized personnel and which prevents the ingress of contamination It is designed for use in an environment classified as pollution degree 2 in accordance with IEC 60664 1 This means that only dry non conducting contamination is acceptable WARNING 62mm 2 44in 249 7mm 9 83in 220mm 8 66in 47mm 1 85in 7 5mm 0 3in 304mm 11 ...

Page 12: ...o allow for mechanical tolerance Digitax ST can be mounted using a DIN rail either fixed at the top or the bottom of the drive as illustrated in Figure 3 3 Two screws are required to fix the drive to the backplate at the opposite end to the DIN rail Figure 3 3 DIN rail mounting 100mm 4in 100mm 4in 2mm 0 08in 47mm 1 85in 312 7mm 12 31in ...

Page 13: ... braking resistor connections shown in Figure 4 1 on page 15 4 Locate the braking resistor onto the drive tab 5 Refit the grill and mounting screws by reversing the procedure in points 1 and 2 3 2 2 Optional external braking resistor If using an external braking resistor the following Warning must be adhered to Brake connections Thermistor connector 1 2 3 4 5 Braking resistor High temperatures and...

Page 14: ...a 3 phase filter For a single phase filter there are only 3 input terminals L1 N ground and 3 output cables L1 N ground Drive No of phases CT part no Schaffner part no DST120X 1 4200 6000 FS23072 19 07 DST120X 3 4200 6001 FS23073 17 07 DST140X 3 4200 6002 FS23074 11 07 Figure 3 5 Bookcase mounting Figure 3 6 Footprint mounting 29mm 1 14in 359mm 14 13in 339mm 13 35in 304mm 11 97in 38mm 1 50in 61mm ...

Page 15: ...C 48V This is not required if the optional internal braking resistor is used DST12XX 200 to 240V 10 DST14XX 380 to 480V 10 Connectors specification Maximum size of power cable 4 0mm 10AWG Torque setting 1 N m 2 PE It is essential that the braking resistor be protected against overload caused by a failure of the brake control Unless the resistor has in built protection a circuit like those shown in...

Page 16: ... and cable are protected against overload the drive must be programmed with the correct motor rated current The terminals are designed for a maximum cable size of 4 0mm2 minimum 26 AWG Where more than one cable per terminal is used the combined diameters should not exceed the maximum The terminals are suitable for both solid and stranded wires An MCB miniature circuit breaker may be used in place ...

Page 17: ...incorporated to ensure spurious trips are not seen The leakage current is likely to exceed the trip level if all of the phases are not energised simultaneously Fuses MCB The AC supply to the drive must be installed with suitable protection against overload and short circuits Failure to observe this requirement will cause risk of fire WARNING The drive must be grounded by a conductor sufficient to ...

Page 18: ...rt it permits the requirements of EN61800 3 to be met for the second environment For longer motor cables the filter continues to provide a useful reduction in emission level and when used with any length of shielded cable up to the limit for the drive it is unlikely that nearby industrial equipment will be disturbed It is recommended that the filter be used in all applications unless the ground le...

Page 19: ...ia the grounding bracket 4 3 3 Recommended cable management Figure 4 3 Drive cable clearances It is not necessary to remove the external EMC filter when using an IT supply NOTE Metal back plate External controller Signal cables Plan for all signal cables to be routed at least 300mm 12in from the drive and any power cable Optional braking resistor Locate optional braking resistor and overload exter...

Page 20: ...single grounding bracket If fitting multiple drives one grounding bracket can be used for two drives Figure 4 4 Top of drive Figure 4 5 Bottom of drive Grounding bracket and drive to be directly connected to a grounded backplate The grounding bracket can remain mounted when the drive is removed NOTE ...

Page 21: ...common External 24V supply 0V common Analog speed reference 1 Connections for single ended input signal Connections for differential input signal 0V common 0V common 0V common Analog input 2 Analog input 1 0V common 1 2 5 6 3 21 22 23 24 25 26 27 28 29 30 31 41 42 At zero speed Reset Run forward Run reverse Analog input 1 input 2 select Jog forward select SAFE TORQUE OFF Drive enable Status relay ...

Page 22: ...gure 4 8 Figure 4 8 Access to encoder connections After removing the break outs ensure that the ground tab is connected to ground Figure 4 9 Connecting the encoder ground tab to the EMC bracket Break outs Do not remove break out if the connections are not required NOTE The size of the connecting cable between the encoder ground tab and the EMC bracket should be equal to the input cable NOTE ...

Page 23: ...s to 0V alone at both drive and encoder end when required Figure 4 11 Feedback cable connections Figure 4 12 Location of encoder connectors on underside of drive Twisted pair cable Twisted pair shield Cable Cable overall shield Ensure that feedback cables are kept as far away as possible from power cables and avoid parallel routing NOTE Cable Cable shield Twisted pair shield Cable shield Twisted p...

Page 24: ...o T8 analog input 3 If this is to be used as a thermistor input ensure that Pr 7 15 is set to th sc 7 th 8 or th diSP 9 If using the drive encoder input converter connector protection to at least IP2X must be provided for the connector WARNING Term Setting of Pr 3 38 Ab 0 Fd 1 Fr 2 Ab SErVO 3 Fd SErVO 4 Fr SErVO 5 SC 6 SC HiPEr 7 EndAt 8 SC EndAt 9 SSI 10 SC SSI 11 1 A F F A F F Cos Cos Cos 2 A F ...

Page 25: ...3 54 Ab 0 Fd 1 Fr 2 Ab L 3 Fd L 4 1 A F F A F 2 A F F A F 3 B D R B D 4 B D R B D 5 Z 6 Z 14 0V Shell 0V common Terminal Function Description 1 0V SC 0V connection for EIA RS485 port 2 RX EIA RS485 Receive line negative Incoming 3 RX EIA RS485 Receive line positive Incoming 4 TX EIA RS485 Transmit line negative Outgoing 5 TX EIA RS485 Transmit line positive Outgoing 6 Fieldbus Type A Fieldbus Type...

Page 26: ...Table 4 6 Digitax EZMotion connector details Terminal Function Description 1 0V common 0V common connection for digital I O 2 Input 1 Digital input 1 3 Input 2 Digital input 2 4 Input 3 Digital input 3 5 Input 4 Digital input 4 6 Output 1 Digital output 1 7 Output 2 Digital output 2 Connector specification Maximum size cable 1 5mm2 Torque 0 2 N m 1 8 lb in ...

Page 27: ...in the event of a fault This is not required if the optional internal braking thermistor can be connected internally U V W 30 31 28 29 26 27 24 25 23 21 22 Drive Enable 24V U V W A A B B U U V V W W Z Z Encoder connector 15 way D type 5 10 15 1 6 11 Serial communications port External braking resistor optional L3 N L2 L1 L2 L1 Fuses Serial Comms User Interface Isolated serial comms lead DST12XX 20...

Page 28: ...0475 0000 02 ...

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