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Configuration & Interfacing the DC Motor with Siemens 6RA70 Dc Drive

I] CUD Pin Configuration:

1] Connector no:X171

Pin No: 36 ( Forward/ Reverse command) ( User functions)

Pin No:37 ( Run Command ) ( Siemens Standed Pin )

Pin No:38 ( Drive Enable Signal ) ( Siemens Standed Pin )

Pin No:39 ( Jog Mode Selection ) (User Function )

Ii] Sequence of drive operation

1] E.Stop realize ON Drive enable signal ( Pin no:38)

2] Spindle run in jog mode = ON both Run command + Jog mode selection 3] Spindle run in continous mode = ON both Run command + Forward for spindle.

Pin 36 Configuration: (Forward/ Reverse command) ( User functions) If Pin 36 is high (1) it is reverse command.

If pin 36 is Low (0) it is forward Command.

Parameter no: P671 = 11 & P672 = 10

Pin 39 Configuration: ( Jog Mode Selection ) (User Function )

If Pin 39 is high (1) it is reverse command.

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If pin 39 is Low (0) it is forward Command.

Parameter no: P401 = (Forward RPM in % )

P402 = ( Reverse RPM in % )

P456 = 10

P455 (1)= 401

P455 (2)=402

P436 (1) =230

P668 (1) = 16

Iii] OutPut Pin Configuration:

1] Pin no:14 & 15 ( RPM Meter output from drive ) Operating voltage is 0-10V

Change parameter: P750=167

2] Pin no: 48 & 54 (Alarm for Drive fault ) When drive is fault ,24V Dc voltage comes from the Pin

Change parameter: P772= 106

3] Zero speed output:Pin no:47 & 46

When the motor is in Zero speed the drive gives 24V Dc.

Change Parameter: P771 = 121

P373= 0.2% ( Speed is mentioned in this parameter )

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Iv] DC Motor Interfacing with 6RA70 Simoreg Drive

Parameter List:

P 051 Parameter can be changed = 40

P 051 Default setting = 21

P 052 To visible all parameters = 3

P 078.001 ( 3 phase input for drive ) =

P 078.002 ( 2 phase input for field ) =

P 100 ( Armature rated current ) =

P 101 ( Armature rated voltage ) =

P 102 ( Rated field current ) =

P 104 ( Speed ) =

P 108 ( Maximum operating speed ) =

P 083 ( we are using tacho ) = 1 (If tacho is used 1, If not 0)

P 741 ( Tacho voltage at maximum speed ) =

Eg: 1000RPM/10V means

Max RPM is 3000 ,then tacho voltage will be 30.

P 082 ( Field gets ON together with line contactor ) = 1

P 081 ( Field weakening is done ) =

P 303 ( Acceleration ) =

P 304 ( Deceleration ) =

P 305 ( Initial rounding ) =

P 306 ( Final rounding ) =

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V] After Entering the Above all Parameters & Pin configuration. Do the

below mentioned Tuning.

P051 = 25 ( Lock the motor shaft and do this tuning )

Step 1 : ON the Run command.

Step 2 : Main contactor gets ON automatic for few seconds.

Step 3 : Main contactor gets OFF automatic.

Step 4 : Now switch OFF the run command.

P 051 = 27 ( Without locking the shaft we can do this tuning )

Step 1 : ON the Run command.

Step 2 : Main contactor gets ON automatic for few seconds.

Step 3 : Main contactor gets OFF automatic.

Step 4 : Now switch OFF the run command.