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Hitachi SJ-FB Instruction
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Hitachi SJ-FB Instruction

Hitachi SJ-FB Instruction

Feed-back board
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FOR HITACHI INVERTER
SJ-FB (Feed-Back Board)
INSTRUCTION
HITACHI
N B 6 1 6 X B
T h a n k y o u f o r p u r c h a s i n g t h e S J - F B ( H I T A C H I F E E D - B A C K B O A R D ) .
T h i s m a n u a l e x p l a i n s t h e o p e r a t i o n o f t h e f e e d - b a c k b o a r d f o r u s e w i t h

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  • Page 1 FOR HITACHI INVERTER SJ-FB (Feed-Back Board) INSTRUCTION HITACHI N B 6 1 6 X B T h a n k y o u f o r p u r c h a s i n g t h e S J - F B ( H I T A C H I F E E D - B A C K B O A R D ) .
  • Page 2 T o g e t b e s t p e r f o r m a n c e w i t h S J - F B ( F e e d b a c k B o a r d ) , r e a d t h i s m a n u a l , t h e S J 3 0 0 I n s t r u c t i o n M a n u a l , a n d a l l o f t h e w a r n i n g l a b e l s a t t a c h e d t o t h e i n v e r t e r c a r e f u l l y b e f o r e i n s t a l l a t i o n a n d o p e r a t i o n , a n d f o l l o w t h e i n s t r u c t i o n s e x a c t l y .
  • Page 3 c a r e s h o u l d b e t a k e n t o p r o t e c t a g a i n s t s h o c k . St a n d o n a n i n s u l a t i n g p a d a n d m a k e i t a h a b i t t o u s e o n l y o n e h a n d w h e n c h e c k i n g c o m p o n e n t s .
  • Page 4 R e v i s i o n C o n t e n t s I n i t i a l R e l e a s e o f M a n u a l N B 6 1 6 X R e v i s i o n A , b y P .
  • Page 5 WARNING O n l y q u a l i f i e d p e r s o n n e l s h o u l d c a r r y o u t w i r i n g w o r k . O t h e r w i s e , t h e r e i s a d a n g e r o f e l e c t r i c s h o c k a n d / o r f i r e .
  • Page 6 CAUTION D o n o t a l l o w m a t e r i a l s s u c h a s c u t t i n g w a s t e , w e l d i n g s p u t t e r , w i r e f r a g m e n t s , s o l d e r b a l l s , d u s t e t c .

  • Page 7: Table Of Contents

    C o n t e n t s C h a p t e r 1 G E N E R A L D E S C R I P T I O N S 1 . 1 I n s p e c t i o n u p o n u n p a c k i n g 1 .

  • Page 8: Inquirie And Warranty

    1.1 Inspection upon unpacking H a n d l e w i t h c a r e . P l e a s e v e r i f y t h e c o n t e n t s o f t h e p a c k a g e c h e c k f o r a n y d a m a g e t h a t m a y h a v e o c c u r r e d d u r i n g t r a n s p o r t a t i o n .
  • Page 9 Chapter 1 GENERAL DESCRIPTIONS t h e l o c a l H i t a c h i D i s t r i b u t o r .
  • Page 10 This manual describes the option board SJ-FB for the SJ300 series inverter. This SJ-FB board, installed in an SJ300 inverter, detects the rotation speed of a motor by accepting pulses from a shaft-mounted motor encoder, achieving highly accurate speed regulation.
  • Page 11 How to Mount the SJ-FB Board Align the holes at the four corners of the SJ-FB board to the guide posts for positioning, in option port 1 or 2 of the inverter. Then gently push the option board into position, making sure the board is fully seated in its connector.

  • Page 12: Chapter 4 Wiring And Connection

    Chapter 4 WIRING AND CONNECTION 4.1 Terminal Assignments of the SJ-FB Board Outlook of SJ-FB Dip switch SWR Dip switch SWENC Connector for Main body connection TM1 terminal assignment TM2 terminal assignment EP5 EG5 EAP EAN EBP EBN EZP EZN...

  • Page 13: Function Explanation Of The Terminals

    (Note 3) Turn ON to cancel LAD. (Note 3) Turn ON to clear position deviation counter. (Note 3) Retransmits the input encoder signal (ratio 1:1). DC +5V power supply Used position control orientation. Output ON when the position comes within the specified range (P017).

  • Page 14: Terminal Connections

    28 AWG (0.75mm be less than 20m. If more than 20m, use a 5V line driver relay amplifier. Chapter 4 WIRING AND CONNECTION Figure 4-2 Terminal wiring SJ-FB (Feed-back board) or more, and the distance should also Insulation DO NOT GROUND...
  • Page 15 (Note 5) : Isolate common signal for inverter analog signals (L terminal of the logic card of SJ300) from common terminal of the SJ-FB. (Note 6) : Be sure to connect the encoder signal lines properly so that the relationship among their phases is as shown below during rotation of the motor (Standard EG5).
  • Page 16 5.1 Setting the DIP Switches Layout of SJ-FB SWENC Figure 5-1 Switch arrangement figure 5.2 Switch Initial Settings Setting Switch item SWENC (Note) : Default setting for all the switches is OFF. Slide to the (OFF) marked side of the switch to turn it off and the opposite side to turn it on.
  • Page 17 5.3 Inverter Configuration Parameters for the SJ-FB Board Code Function name 00(VC) / 01(VP1.7power) / 02(Free V/f Setting) A044 control method Auto-tuning mode 00(NOR : Invalid) / 01(NRT : not rotate)/ 02(AUT : H001 selection 00(Hitachi standard motor constant)/ motor constant...

  • Page 18: Chapter 5 Setting

    Code Function name The 1 motor J setting H034 (Auto-tuning data) PI control proportional gain H050 setting PI control integral gain H051 setting P control proportional gain H052 setting PI control proportional gain H070 switching H071 PI control integral gain setting P control proportional gain H072 setting...

  • Page 19: I N I T I A L S E T T I N G S

    (Note 2): When the over speed abnormal detection level (P026), the speed error over detection level (P027) are set 0, the Abnormal detection data processing will be invalid. (Note 3): Regarding the SJ-FB setting, there are some warning about what type of main body combines with the SJ-FB which is written following list.

  • Page 20: S E T T I N G F L O W C H A R T F O R T H E D I P S W I T C H E

    Setting Flowchart for the DIP Switches Detect a wire break of Detect a wire break of the Use the pulse train position Connect parallel motors to the pulse train position command input? Turn SWR1, 2 on only 1 unit that is the most distant from a master inverter in a plural motor.

  • Page 21: Chapter 6 O P E R A T I O

    (Note 4) : The motor constant data of the SJ300 series is the data at the time of base frequency 50Hz in the J1 motor made in Hitachi. . Please put in the value that did it to motor constant I0 (H023) 0.7 times, in the case that you use it with base frequency 60Hz in the J1 motor.
  • Page 22 (Note 6) : If satisfactory performance can not be obtained, adjust the motor constants for the particular symptoms observed according to following table: Inverter Symptom Observed Status Shock occurs At starting starting Instability of motor deceleratio rotation Insufficient torque During during torque limit torque limit at low speed...

  • Page 23: Orientation Function

    7.1 Orientation function This board is provided with the orientation function used to position the motor at a certain point during operation. This function can be used for replacing a component of the main axis of the subject machine tool for example. 7.1.1 Function outline The orientation function maintains position which has decided with the position control after speed control operation.
  • Page 24 4. Inverter maintains the position after the completion, and outputs the ‘position control completion (POK) signal’ after the set value of ‘delay time setting (P018). (Inverter drives the motor reverse and return to the required stop position in the case it exceeds the required stop position.) 5.

  • Page 25: Data Setting

    Stoppage goal position is like shown in Figure 7-2 irrespective of the turn direction. (Note 4) : It depends on what type of main body combines with the SJ-FB, the setting value conversion is different. Please refer to the (Note 3) of the “5.3 Items regarding the feed back board of the inverter main body“.

  • Page 26: Speed Control (Asr)

    Data setting of the input-output terminal Input-output terminal ORT terminal (ORT) Positioning completion signal (POK) 7.2 Speed control (ASR) When the control mode selection (P012) is set to 00, operation mode becomes a speed control operation mode (ASR mode). Please drive after setting up the frequency, operation command and each motor constant .

  • Page 27: Data Setting

    Master Inverter Main Motor Figure 7-3 Wiring for Synchronized Operation (Note) : Please connect EG5 of the main and sub inverter together to avoid malfunction caused by EMC noise. 7.3.3 Data setting Data setting related to position control Setting item Feed-forward gain (Note 1) Position loop gain (Note 2)
  • Page 28 (N: Electronic gear ratio numerator, D: Electronic gear ratio denominator) (Note 4) : It depends on what type of main body combines with the SJ-FB, the setting value conversion is different. Please refer to the (Note 3) of the “5.3 Items regarding the feed back board of the inverter main body“.
  • Page 29 [Setting example] Main Motor : Encoder pulse 1024 pulses Sub Motor : Encoder pulse 3000 pulses (Main motor rotation speed) : (sub motor rotation speed) = 2 : 1 Set the following for slave inverter in this case. Electronic gear setting position (P019) : RET (command pulse side) Electronic gear numerator (P020) : 3000 Electronic gear ratio denominator (P021) Figure 7-4 Control block diagram of the electron gear function (1)

  • Page 30: Pulse Train Mode Selection

    7.3.4 Pulse train mode selection The following 3 ways of pulse line input can be selected by the setting of P013. 1) 90° phase difference pulse train (Mode 0) (Pulse train input) (Pulse train input) Detected pulse number 2) Forward/Reverse command + pulse train (mode 1) (Pulse train input) (Forward/reverse command) Detected...

  • Page 31: Speed Control (P/Pi) Switching Function

    7.4 Speed control (P/PI) switching function Speed control mode proportional-integration compensation (Pi), which keeps the deviation between the actual speed and speed command becomes 0. Further, you can also achieve a propotional control function, which can be used as drooping operation (i.e. one load with several inverters) with this option card.

  • Page 32: C O M P E N S A T I O N O F S E C O N D A R Y R E S I S T O R F U N C T I O

    7.5 Compensation of secondary resistor function (Temperature revision) Please use this function, if you want to do the temperature revision to restrain the speed fluctuation by the temperature change of the motor. (Please use the thermistor of the characteristic like type B that shows it below.

  • Page 33: W A R N I N G D I S P L A Y

    (Note 1): Data in parentheses ( ) applies when the option card is connected to option slot 2. (Note 2): Frequency upper limit value (A061/A261) is reflected when it is set. (Note 3): It depends on what type of main body combines with the SJ-FB, the setting value conversion is different.
  • Page 34 Chapter 8 PROTECTION FUNCTION frequency setting (A004). Please confirm the case, orientation speed setting (P015) and highest frequency setting (A004).
  • Page 35 P l e a s e r e f e r t o t h e ( N o t e 3 ) o f t h e “ 5 . 3 I t e m s r e g a r d i n g t h e f e e d b a c k b o a r d o f t h e i n v e r t e r m a i n b o d y “ . HITACHI Chapter 8...

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