HEIDENHAIN PWM 20 User Manual

Name: HEIDENHAIN PWM 20
Brand: HEIDENHAIN
SKU: 1545694
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User's Manual



PWM 20 (IK 215) Testing Package

9/2014

1 General..................................................................................................................................		5
1.1	How to use this manual...............................................................................................	5
1.2	Safety precautions.......................................................................................................	6
1.3	Information on the IK 215 adjusting and testing package ...........................................	6
1.4	Information on the PWM 20 encoder diagnostic kit, ID 759251-01 ............................	8

2 Items supplied......................................................................................................................			9
2.1	IK 215 adjusting and testing package (ID 547858-xx); items supplied ........................		9
2.2	PWM	20 basic kit, ID 731626-51; items supplied .....................................................	10
2.3	PWM	20 encoder diagnostic kit, ID 759251-01; items supplied ...............................	11
2.4	Optional accessories ................................................................................................		12

3 Overview of cables and adapters .....................................................................................		19
3.1	General information: PWM 20 - encoder connection and grounding ........................	19
3.2	SA 100/110 Service Adapter for floating feed-through operations (listening-in)........	24
3.3	EnDat 2.1 / 2.2 absolute interface with incremental signals .....................................	26
3.4	EnDat 2.2 absolut rein seriell ohne Inkrementalsignale.............................................	32

3.5Inductive, absolute EnDat rotary encoders ExI 11xx/13xx; adapter for

		PCB connector ...........................................................................................................	35
	3.6	Fanuc .........................................................................................................................	36
	3.7	Mitsubishi ..................................................................................................................	40
	3.8	SSI .............................................................................................................................	43
	3.9	DRIVE-CLiQ ...............................................................................................................	44
	3.10 Checking absolute interfaces in feed-through mode (listening-in).............................		46
	3.11 Incremental 11/25 µApp interface in feed-through mode (listening-in) .....................		51
	3.12 Incremental 1 Vpp / TTL interface in feed-through mode (listening-in)......................		52
	3.13	HTL/HTLs incremental interface................................................................................	54
	3.14 Incremental 1 Vpp interface with commutation for synchronous and linear drives
		in feed-through mode (listening-in)............................................................................	55
	3.15 EnDat absolute interface for synchronous and linear drives
		in feed-through mode (listening-in) ...........................................................................	58
	3.16 1 Vpp incremental interface LIP 200 adapter for compensation ...............................		61
	3.17	I2C Rexroth Indramat ................................................................................................	62
	3.18 1 Vpp incremental interface with commutation, without evaluation of
		temperature sensor...................................................................................................	63
4	Pin layouts ..........................................................................................................................		65
	4.1	Pin layout of PWM 20................................................................................................	65
	4.2	Pin layout of IK 215....................................................................................................	66
	4.3	Pin layout of the encoders.........................................................................................	67
5	Contact..............................................................................................................................		165
	5	Your HEIDENHAIN helpline ......................................................................................	165
	5	HEIDENHAIN technical helpline ...............................................................................	165
	5 The HEIDENHAIN helpline for repairs, spare parts, exchange units,
		complaints and service contracts..............................................................................	165
	5	Technical training......................................................................................................	165

Note

The tables in the 'Items supplied" section in chapter 2 only serve as an orientation aid for finding adapter cables and interfaces.

The different adapter cables with their IDs are assigned to the interfaces.

The chapter numbers (links) in the tables lead you to the cable diagrams where you can see which adapter cables are used.

1 General

1.1How to use this manual

About this	This User's Manual is describes the test unit PWM 20, ID 731626-xx and the PC expansion board
manual	IK 215, ID 386249-xx.
	As of the ATS software version 2.6, feed-through mode is available and incremental measuring
	systems can be inspected. (For further information refer to the User's Manual of the ATS
	Software, ID 543734-xx).
	The cable diagrams in this manual illustrate the possibilities of connecting adapter cables and
	their pin layouts.
Update service	This service manual is regularly updated.
	The current (printable) version is available on the Internet in PDF format: www.heidenhain.de
		Note
		Note
		The test cables (adapter cables) are continuously revised to meet the current
		inspection procedures and interfaces.
		Thus, specific quotations may differ from the information in this manual.
		The cable diagrams do not claim to be complete!
		Note


		Printed copies are only distributed to the participants of our service training courses and are
		enclosed with new test units.

Meaning of	Symbols represent the type of information.
the symbols
		Note
		Note
		E.g., reference to more detailed information in another chapter.
		Attention


		E.g., indication of error messages that may be displayed or repetition of program steps.

		DANGER
		DANGER

Additional documentation

Target group

E.g., information that incorrect operation may cause the danger of electrical shock or lead to the destruction of components.

For more information please refer to the following documentation:

User's Manual ATS Software ID 543734-xx

Documentation of the machine tool builder

Interface descriptions (HEIDENHAIN)

Mounting instructions of the encoders

Encoder brochures (www.heidenhain.de)

The activities described in this manual may only be performed by specialists for service, maintenance and commissioning who have profound knowledge of electronics, electrical engineering and NC machine-tool technology.

Note

Keep these instructions for later reference.

August 2014

General

1.2Safety precautions

Note

Observe the safety precautions below to avoid injury or damage to persons or products.

To avert potential dangers, only use the product in the manner described!

Before you integrate the test units into the position control loop of an NC controlled machine tool make sure that

1.the machine is switched off and

2.all connectors are disengaged! Observe the ESD precautions!

DANGER

Do not operate defective units!

Do not operate the device, if power cord, power supply unit or test unit are damaged!

Do not change any parameters or encoder voltages at the test units while the machine tool is moving and a test unit is connected to the position control loop!

Ensure that vertical axes cannot fall down!

The ATS software permits the user to save data on his specific machine or system in the memory area for customers. The data may comprise information relevant to machine safety.

When servicing, please take care to adjust this memory area. Failure to do so may result in machine damage or personal injury!

When troubleshooting always contact the machine tool builder for information (e.g. meaning of the data in the OEM memory).

Attention

Correct evaluation of the malfunction of an NC-controlled machine requires fundamental knowledge about the machine tool, its drives, inverters and NCs as well as their interaction with the measuring systems.

Improper operation of the NC, incorrect NC programming, or incorrect or non-optimized machine parameter values can lead to faulty machine performance.

Careless treatment or use may cause considerable damage or injury to property or persons.

HEIDENHAIN can accept no responsibility for direct or indirect damage or injury caused to property or persons through improper use or incorrect operation of the machine.

Apart from the information in this manual the general instructions for safety and the prevention of accidents must be observed.

Note

Support is provided by HEIDENHAIN Traunreut or by the HEIDENHAIN agencies, see “Contact” on page 163.

6	HEIDENHAIN PWM 20 Prüfpaket Kabelund Anschlusstechnik

1.3Information on the IK 215 adjusting and testing package

The IK 215 Adjusting and Testing Package serves to diagnose and adjust HEIDENHAIN encoders with absolute interfaces.

The IK 215 adjusting and testing package comprises:

IK 215 interface card for installation in a PCI expansion slot of a personal computer

Adjusting and Testing Software (ATS) with integrated local encoder database for automatic encoder identification

Standard adapter cables for common testing procedures

Other adapters and adapter cables are available (see table).

Note

The IK 215 neither supports incremental interfaces (1 Vpp, 11 µApp, TTL, etc.) nor the

SIEMENS DRIVE-CLiQ interface.

Feed-through mode is not possible with the IK 215 (service adapter SA 100 or SA 110 required in addition).

August 2014

General

1.4Information on the PWM 20 encoder diagnostic kit, ID 759251-01

The PWM 20 encoder diagnostic kit serves to adjust HEIDENHAIN absolute and incremental encoders with absolute and incremental interfaces and to check correct operation.

The PWM 20 encoder diagnostic kit comprises:

PWM 20 test unit for direct connection to a laptop/PC via USB interface

ATS Adjusting and Testing Software on CD with integrated local encoder database for automatic encoder identification

Standard adapter cables for common testing procedures

Case for testing equipment

Other adapters and adapter cables are available (see table).

Note

The PWM 20 test unit is available in three different combinations (see tables below):

-PWM 20 basic kit

-PWM 20 basic kit including case (aluminum)

-PWM 20 basic kit including case, set of standard adapter cables and operating instructions

8	HEIDENHAIN PWM 20 Prüfpaket Kabelund Anschlusstechnik

2 Items supplied

2.1IK 215 adjusting and testing package (ID 547858-xx); items supplied

The packages 1 and 2 are included in delivery.



		Package 1: ID 527367-01			Package 2: ID 658110-01

		Package 1 + package 2: ID 547858-xx


Package 1 IK 215				ID 527367-01

	Qty.	Description				ID

1		IK 215 PCI board				386249-02

1		ATS CD ROM de/en software version 3.0.xx				539862-23

1		Operating instructions (initial configuration)				549369-91


Package 2 PWM 20 / IK 215 accessories kit
		for absolute encoders		ID 658110-01

	Qty.	Description				ID

1		Benutzer-Handbuch ATS-Software PWM 20 / IK 215 de				543734-xx

1		User‘s Manual ATS Software PWM 20 / IK 215 en				543734-xx

1		Adapter cable (with incremental signal) for IK input 15/17-pin; D-sub/M23; 2 m				324544-02

1		Adapter cable for LC 18x scanning unit, 12/17-pin; 3 m				369124-03

1		Adapter cable for LC 48x scanning unit, 12/17-pin; 3 m				369129-03

1		Adapter cable for IK input, 15/8-pin; D-sub/M12; 2 m				524599-02

1		Adapter cable for LC xx3, LC xx5, LC 20x	scanning unit, 14/17-pin; M12/M23; 3 m			533631-03

1		Adapter cable for RCN 82xx Ultra Lock 12/17-pin; M12/M23				643450-03

August 2014

Items supplied

2.2PWM 20 basic kit, ID 731626-51; items supplied

Basic kit: ID 731626-51

PWM 20 basic kit		ID 731626-51

Qty.	Description		ID

1	PWM 20		731626-01

1	ATS CD ROM de/en software version 3.0.xx		539862-23

1	Operating instructions (initial configuration)		729905-xx

1	USB connecting cable, 2 m		354770-02

1	Power cable, 3 m		223775-01

1	PWM 20 packaging (cardboard box)		730058-01

10	HEIDENHAIN PWM 20 Testing Package – Cable and Connection Technology

2.3PWM 20 encoder diagnostic kit, ID 759251-01; items supplied

The packages 1 and 2 are included in delivery.



		Package 1: ID 759249-01	Package 2: ID 658110-01

		Package 1 + package 2: ID 759251-01


Package 1 PWM 20 basic kit including case			ID 759249-01

	Qty.	Description		ID

1		PWM 20		731626-01

1		ATS CD ROM de/en software version 3.0.xx		539862-23

1		Operating instructions (initial configuration)		729905-xx

1		USB connecting cable, 2 m		354770-02

1		Power cable, 3 m		223775-01

1		Case for testing equipment		785241-01


Package 2 PWM 20 / IK 215 accessories kit for absolute encoders			ID 658110-01

	Qty.	Description		ID

1		Benutzer-Handbuch ATS-Software PWM 20 / IK 215 de		543734-xx

1		User‘s Manual ATS Software PWM 20 / IK 215 en		543734-xx

1		Adapter cable (with incremental signal) for IK input 15/17-pin; D-sub/M23; 2 m		324544-02

1		Adapter cable for LC 18x scanning unit, 12/17-pin; 3 m		369124-03

1		Adapter cable for LC 48x scanning unit, 12/17-pin; 3 m		369129-03

1		Adapter cable for IK input, 15/8-pin; D-sub/M12; 2 m		524599-02

1		Adapter cable for LC xx3, LC xx5, LC 20x scanning unit, 14/17-pin; M12/M23; 3 m		533631-03

1		Adapter cable RCN 82xx Ultra Lock 8/17-pin; M12/M23		643450-03

August 2014

Items supplied

2.4Optional accessories

Note

The test cables (adapter cables) are continuously revised to meet the current inspection procedures and interfaces.

Thus, specific quotations may differ from the information in this manual. The cable diagrams do not claim to be complete!

Optional adapter cables and adapters are available for the different interfaces:

Package 3 PWM 20 adapter cables for incremental encoders		ID 826440-01

Qty.	Description	ID

	11 µApp

1	Adapter cable for scanning unit, slimline, 8/9-pin; M23; 1 m	310125-01

1	Adapter cable for scanning unit, full-size , 12/9-pin; M23; 1 m	310130-01

1	Adapter cable IN 15/9-pin; D-sub / M23; 1 m	653231-01

	1 Vpp / TTL

1	Adapter cable IN 15/12-pin; D-sub / M23; 1 m	309784-01

1	Adapter cable for scanning unit, slimline, 12/12-pin; M23; 1 m	310122-01

1	Adapter cable for scanning unit, full-size, 12/12-pin; M23; 1 m	310127-01

1	Adapter cable for scanning unit, slimline and full-size, 14/12-pin; M12/M23; 1 m	344228-01

1	Adapter connector; coupling to connector; 12-pin; M23/M23	373848-01

	Package 3: ID 826440-01

12	HEIDENHAIN PWM 20 Testing Package – Cable and Connection Technology

Qty.	Description	See chapter	ID

	EnDat 2.1

1	Adapter cable (extension) 17-pin Pos.Enc.	3.3.1, 3.3.2, 3.3.3,	323897-xx
		3.3.4, 3.3.5

1	Adapter cable for IK input, 15/17-pin; 2 m	3.3.1, 3.3.2, 3.3.3,	324544-02
		3.3.4, 3.3.5

1	Adapter cable 17/15-pin; 3 m	3.3.3, 3.3.4	332115-03

1	Adapter cable (extension) 17/17-pin Mot.Enc.	3.3.5	340302-xx

1	Adapter connector Mot.Enc. -> Pos.Enc. (assignmt. converter)	3.3.5	349312-03

1	Adapter connector Pos.Enc -> Mot.Enc. (assignmt. converter)	3.3.5	349312-04

1	Adapter cable with PCB connector 17/12-pin; 1 m	3.3.1, 3.3.5	349839-02

1	Adapter cable 17/25-pin; 0.3 m (assignment converter)	3.3.2	509666-N3

1	Adapter cable 17/25-pin; 0.3 m (assignment converter)	3.3.2	509667-N3

1	Adapter cable 17/15-pin; 0.3 m	3.3.3, 3.3.4	510616-N3

1	Adapter cable 17/15-pin; 0.3 m	3.3.4	510617-N3

1	Adapter cable 15/12-pin	3.3.1	528015-xx

1	Adapter cable 17/25-pin; 3 m	3.3.2, 3.3.5	605426-xx

1	Adapter cable 12/17-pin	3.3.1, 3.3.3	643450-03

	EnDat 2.2

1	Adapter cable 17/15-pin	SA 100 --> IK	3.4.1, 3.4.3	324544-02

1	Adapter cable 17/15-pin	SA 100 --> PCB connector of encoder	3.4.1	349839-02

1	SA 100 Service Adapter (listening-in mode EnDat 21 and 22,		3.2.1	363706-01
	Fanuc and Mitsubishi), 17-pin connector, M23

1	Adapter cable 8/8-pin (extension) Pos.Enc.		3.4.2	368330-xx

1	Adapter cable 17/15-pin; 0.3 m		3.4.1	510616-N3

1	Adapter cable 8/25-pin		3.4.2	641926-xx

1	Adapter cable 8/15-pin	Encoder --> IK	3.4.2, 3.4.3	524599-02

1	Adapter cable 8/12-pin (with PCB connector)		3.4.2	530351-03

1	Adapter cable 8/15-pin		3.4.2	533627-xx

1	SA 110 Service Adapter (listening-in mode EnDat 21 and 22,		3.2.2	573547-01
	Fanuc and Mitsubishi), 17-pin connector, M23

1	Adapter cable 8/15-pin		3.4.3	628186-xx

1	Adapter cable 12/17-pin		3.4.1	643450-03

1	Adapter cable 8/9-pin		3.4.2	745796-xx

August 2014

Items supplied

Qty.	Description	See chapter	ID

	EXI 11xx/13xx adapter for adjustment

1	Adapter cable 15/12-pin	3.5	528015-02

1	3 Inserts (12-pin) for adapter connectors	3.5	528694-01

1	3 Inserts (15-pin) for adapter connectors	3.5	528694-02

1	Adapter cable with 2 x 3 inserts for adapter connectors	3.5	621742-01
	(12 and 15-pin)

	FANUC SERIAL interface

1	Adapter cable for IK input, 15/17-pin; 2 m	3.6.1	324544-02

1	Adapter cable 17/17-pin (extension)	3.6.1	349314-xx

1	SA 100 Service Adapter (listening-in mode EnDat 2.2 and	3.2.1	363706-01
	FANUC); connector 17-pin, M23

1	Adapter cable 15/8-pin (IN)	3.6.2, 3.6.3	524599-xx

1	Adapter cable 20/17-pin, 0.5 m (encoder --> SA 100)	3.6.1	550161-01

1	Adapter cable 17/20-pin; 0.5 m (FANUC -> SA 100)	3.6.1	550162-01

1	Adapter cable 15/8-pin; M12 (OUT)	3.6.2	In preparation

1	Adapter cable 20/8-pin; M12 (IN)	3.6.2, 3.6.3	In preparation

1	Adapter cable 20/8-pin; M12 (OUT)	3.6.2, 3.6.3	In preparation

	FANUC TTL

1	Adapter cable 15-pin D-sub; 12-pin (IN)	3.6.4	309784-xx

1	Adapter cable 10/20-pin (OUT)	3.6.4	556558-xx

1	Adapter cable 12/20-pin (IN)	3.6.4	577345-01

1	Adapter cable 15-pin D-sub; 12-pin (OUT)	3.6.4	825422-xx



	MITSUBISHI High Speed Serial Interface

1	Adapter cable for IK input, 15/17-pin; 2 m	3.7.1	324544-02

1	Adapter cable 17/17-pin (extension)	3.7.1	349314-xx

1	Adapter cable 17/20-pin	3.7.1	367958-xx

1	Adapter cable 15/8-pin (IN)	3.7.1, 3.7.2, 3.7.3	524599-xx

1	Adapter cable 17/10-pin	3.7.1	573661-xx

1	Adapter cable 8/20-pin	3.7.2, 3.7.3	646806-xx

1	Adapter cable 8/10-pin	3.7.2, 3.7.3	647314-xx

1	Adapter cable 20/17-pin (encoder -> SA 100)	3.7.1	750973-01

1	Adapter cable 10/17-pin (encoder -> SA 100)	3.7.1	750974-01

1	Adapter cable 15/8-pin; M12 (OUT)	3.7.2	In preparation

14	HEIDENHAIN PWM 20 Testing Package – Cable and Connection Technology

Qty.	Description	See chapter	ID

1	Adapter cable 20/8-pin; M12 (IN)	3.7.2, 3.7.3	In preparation

1	Adapter cable 10/8-pin; M12 (IN)	3.7.2, 3.7.3	In preparation



	SSI (Synchronous Serial Interface)

1	Adapter cable (extension) 17-pin (Pos.Enc. assignment)	3.8.1	323897-xx

1	Adapter cable for IK input, 15/17-pin; 2 m	3.8.1	324544-02

1	Adapter cable (extension) 17/17-pin (Mot.Enc.)	3.8.1	340302-xx

1	Adapter connector Mot.Enc. -> Pos.Enc. (assignmt. converter)	3.8.1	349312-03

1	Adapter cable with PCB connector 17/12-pin; 1 m	3.8.1	349839-02

1	Adapter cable 12/15-pin	3.8.1	528015-xx

1	Adapter cable with 15-pin PCB connector	3.8.1	635349-xx



	DRIVE-CLiQ (registered trademark of SIEMENS AG)

1	Connecting cable 12/12-pin (IN)	3.9.2	298400-xx

1	Connecting cable 12/12-pin (OUT)	3.9.2	298401-xx

1	Adapter cable 15/12-pin	3.9.2	309784-xx

1	Adapter cable 25-pin D-sub (Mot.Enc.); 12-pin (Pos.Enc.) (IN)	3.9.2	533055-01

1	Adapter cable SIEMENS RJ 45, 8+2-pin connector	3.9.1	740059-02

1	Adapter cable 12/25-pin (OUT)	3.9.2	758082-xx

1	Adapter cable SIEMENS RJ 45, 8+2-pin connector, IP20/IP67	3.9.1	759314-01

1	Adapter cable 15-pin D-sub; 12-pin (OUT)	3.9.2	825422-xx

1	Adapter cable SIEMENS RJ 45 8+2 / M12 8-pin	3.9.1	1078299-xx



	Absolute interfaces EnDat/SSI

1	Adapter cable (extension) 17-pin (Pos.Enc. assignment)	3.10.4	323897-03

1	Adapter cable 15/17-pin (IN)	3.10.1	324544-xx

1	Adapter cable 17/15-pin; 3 m	3.10.4	332115-03

1	Adapter cable 17/25-pin; 3 m	3.10.2	336376-03

1	Adapter cable 15/8-pin (IN)	3.10.1, 3.10.3	524599-xx

1	Adapter cable 17/25-pin; 3 m	3.10.2	605426-xx

1	Connecting cable 15/15-pin (IN)	3.10.1	675582-xx

1	Adapter cable 8/9-pin	3.10.3	745796-xx

1	Adapter cable 9/25-pin	3.10.2	745813-xx

August 2014

Items supplied

Qty.	Description	See chapter	ID

1	Adapter cable 15/17-pin (OUT)	3.10.1	827099-xx

1	Adapter cable 15-pin M12; 8-pin (OUT)	3.10.1, 3.10.3	In preparation

1	Adapter cable 15/25-pin (IN)	3.10.1, 3.10.2	827551-xx

1	Adapter cable 15/25-pin (OUT)	3.10.1, 3.10.2	827593-xx

1	Adapter cable 15/15-pin (IN)	3.10.1, 3.10.4	1040982-xx

1	Adapter cable 15/15-pin (OUT)	3.10.1, 3.10.4	1041017-xx

	EnDat/SSI (adapter cables for synchronous servo motors)	3.15.1

1	Adapter cable (extension) 17-pin (Pos.Enc. assignment)	Figure E	323897-03

1	Adapter cable 15/17-pin (IN)	Figure D	324544-xx

1	Adapter cable 17/25-pin; 3 m	Figure D, Figure E	336376-xx

1	Adapter cable (extension) 17/17-pin (Mot.Enc.)	Figure D	340302-xx

1	Adapter connector Mot.Enc. -> Pos.Enc. (assignmt. converter)	Figure D	349312-03

1	Adapter connector Pos.Enc -> Mot.Enc. (assignmt. converter)	Figure D	349312-04

1	Adapter cable 17/15-pin SA 100 --> PCB connector of encoder	Figure D	349839-xx

1	Adapter cable 17/25-pin; 0.3 m (assignment converter)	Figure E	509666-N3

1	Adapter cable 17/25-pin; 0.3 m (assignment converter)	Figure E	509667-N3

1	Adapter cable 17/25-pin; 3 m	Figure D, Figure E	605426-xx

1	Adapter cable with 15-pin PCB connector	Figure D	635349-xx

1	Adapter for feed-through mode Pos.Enc. 17-pin M23/15-pin D-sub	Figure D, Figure E	1075630-01
	PWM 20

	EnDat (adapter cables for direct drives)	3.15.1

1	Adapter cable (extension) 17-pin (Pos.Enc. assignment)	Figure F	323897-03

1	Adapter cable 17/25-pin; 3 m	Figure F	336376-xx

1	Adapter cable 17/25-pin; 0.3 m (assignment converter)	Figure F	509666-N3

1	Adapter cable 17/25-pin; 0.3 m (assignment converter)	Figure F	509667-N3

1	Adapter cable 17/25-pin; 3 m	Figure F	605426-xx

1	Adapter for feed-through mode Pos.Enc. 17-pin M23/15-pin D-sub	Figure F	1075630-01
	PWM 20



	Incremental interfaces

	11 µApp

1	Adapter connector 15/9-pin (IN)	3.11.1	294894-xx

1	Adapter cable 15/9-pin (OUT) (feed-through mode)	3.11.1	368171-xx

1	Adapter cable 15/9-pin (OUT) (feed-through mode)	3.11.1	368172-xx

1	Adapter cable 15/9-pin (IN) M23	3.11.1	653231-02

1	Adapter cable 15/9-pin (IN)	3.11.1	826431-02

16	HEIDENHAIN PWM 20 Testing Package – Cable and Connection Technology

Qty.	Description	See chapter	ID

1	Adapter cable 15/9-pin (OUT)	3.11.1	826436-02

1	Adapter cable 15/9-pin (OUT)	3.11.1	826508-02

	1 Vpp / TTL

1	Adapter cable 15/12-pin	3.12.1	309784-xx

1	Adapter cable 15/12-pin (IN)	3.12.1	310196-xx

1	Adapter, round 12/15-pin D-sub connector	3.12.1	324555-xx

1	Adapter cable 15/15-pin (IN) without limit/homing signals	3.12.1	335074-xx

1	Adapter cable 15/15-pin (IN), 9 m max., without limit/homing	3.12.1	355186-xx
	signals

1	Adapter cable 12/15-pin (OTIS)	3.12.1	1118055-01

1	Connecting cable 15/15-pin (IN), LIP 200	3.16.1	735541-xx
	(layout for compensation run)

1	Adapter cable 15/12-pin (OUT)	3.12.1	825422-xx

1	Adapter cable 15/15-pin (OUT)	3.12.1	825425-xx

1	Adapter cable 15/12-pin (OUT)	3.12.1	825426-xx

	1 Vpp/TTL, LIDA/LIF with LIMIT / HOMING signals

1	Adapter cable 15/15-pin (IN) with limit/homing signals	3.12.2	354379-xx

1	Adapter cable 15/15-pin (IN), 9 m max., with limit/homing signals	3.12.2	355397-xx

1	Connecting cable 15/15-pin (OUT); 1:1 assignment; with limit/	3.12.2	633811-xx
	homing signals

	1 Vpp A/B (Zn) and commutating signal C/D (Z1)	3.14.1
	(adapter cables for synchronous servo motors)

1	Adapter cable 17/25-pin; PWM to subsequent electronics	Figure A, Figure B	289440-xx

1	Adapter cable (extension) 17-pin (Pos.Enc. assignment)	Figure A, Figure B	323897-03

1	Adapter cable 1 m with 14-pin PCB connector for	Figure B	330980-xx
	1 Vpp encoders with Zn/Z1 track Pos.Enc.EnDat (IN)

1	Adapter cable 17/17-pin; PWM to motor	Figure B	336847-xx

1	Adapter connector Zn/Z1 transforms Mot.Enc. into Pos.Enc.	Figure B	349312-01

1	Adapter cable 17/25-pin; 0.3 m (assignment converter)	Figure A	509666-N3

1	Adapter cable 17/25-pin	Figure A	511886-N3

1	Adapter for feed-through mode Pos.Enc. 17-pin M23/15-pin D-sub	Figure A, Figure B	1075630-01
	PWM 20

	1 Vpp (adapter cables for direct drives)	3.14.1

1	Adapter cable 17/25-pin; PWM to subsequent electronics	Figure C	289440-xx

1	Adapter cable (extension) 17-pin (Pos.Enc. assignment)	Figure C	323897-03

1	Adapter cable 17/25-pin; 0.3 m (assignment converter)	Figure C	509666-N3

1	Adapter cable 17/25-pin	Figure C	511886-N3

1	Adapter for feed-through mode Pos.Enc. 17-pin M23/15-pin D-sub	Figure C	1075630-01
	PWM 20

August 2014

Items supplied

Qty.	Description	See chapter	ID

	HTL/HTLs

1	Adapter cable IN 15/12-pin; D-sub / M23; 1 m	3.13.1	309784-xx

1	Adapter cable 15/12-pin (IN)	3.13.1	310196-xx

1	Adapter, round 12/15-pin D-sub connector	3.13.1	324555-01

1	Adapter HTL/HTLs PWM 20 X1 (IN)	3.13.1	1093210-01

	Rexroth Indramat

1	Adapter connector (1 Vpp / TTL) Rexroth Indramat M23, 12-pin	3.12.1	269329-xx
	encoded / M23 12-pin

1	Adapter cable 15/17-pin (IN)	3.17.1	324544-xx

1	Adapter cable (I2C) Rexroth Indramat M23, 12-pin encoded /	3.17.1	349595-01
	M23 17-pin



	Incremental commutation encoders 1 Vpp (e. g. ERN 1387)

1	Adapter cable (extension) 17-pin Pos.Enc.	3.18.1	323897-xx

1	Adapter cable 15/17-pin (IN)	3.18.1	324544-02

1	Adapter cable 1 m with 14-pin PCB connector for	3.18.1	330980-01
	1 Vpp encoders with Zn/Z1 track Pos.Enc.EnDat (IN)

1	Adapter connector Zn/Z1 transforms Mot.Enc. into Pos.Enc.	3.18.1	349312-01

Note

Cables with "(OUT)" in their names are required for the feed-through mode. Not all interfaces support feeding through with the PWM 20.

For measurements in the control loop, please note the chapters "Connect encoder" and "Feed-through mode" in the User's Manual of the ATS Software.

18	HEIDENHAIN PWM 20 Testing Package – Cable and Connection Technology

3 Overview of cables and adapters

3.1General information: PWM 20 - encoder connection and grounding

Encoder	Please ensure that the correct supply voltage is selected to avoid damage to the encoder.
connection	The cable between the encoder and the PWM 20 must not be connected or disconnected while
	under power. Otherwise the encoder and the PWM 20 might be damaged. Check whether the
	cable between the encoder and the PWM 20 is correctly wired. The pin layout of the encoder is
	included in the specifications. The pin layouts of the connecting cables are described in the
	catalog. An incorrectly wired connecting cable might damage the encoder and the PWM 20.
Encoder	The encoder input X1 of the PWM 20 is electrically connected with the encoder output X2.
output	The signals and the pin layout at the output correspond to the respective signals at the input.
		DANGER
		DANGER
		There is no metallic isolation of the signals.
		The supply and sensor lines are switched via the ATS software (as of ATS V2.6) depending
		on the respective mode of operation, and can be connected (see examples).
		It is always ensured that the supply voltage generated by the PWM 20 is not present at X2.

	Example 1:
	PWM 20 in feed-through mode (the encoder is powered by the subsequent electronics) / ATS
	software not started

Example 2:

PWM 20 powers the encoder via X1

August 2014

Overview of cables and adapters

Grounding	The PWM 20 features an internal wide-range switching power supply. The PE terminal
conditions	(protective earth), which is also connected with the PWM 20 housing, is therefore required.
	If the PWM 20 is integrated in the position control loop of an NC-controlled machine, the
	PWM 20 constitutes an additional grounding point, which changes the shielding concept.
	To prevent this,
	the PWM 20 can be supplied via an isolating transformer,
	the PWM 20 can be supplied with 24 VDC.
	To evaluate the PWM 20 measuring data, a PC is connected to the USB interface of the
	PWM 20. The 0-V potential and the protective earth terminal are usually connected to each other
	in the PC (also USB). If the PWM 20 is integrated in the position control loop of an NC-controlled
	machine, the conditions on the 0 V connection change, too. To prevent this,
	you can use a battery-operated laptop computer,
	the laptop can be used with a power supply unit without protective earth terminal.
Feed-through	For diagnostic purposes, the PWM 20 can be integrated into the control loop of an NC-controlled
operation	machine via the encoder input and output (see "Encoder Output"). In this case, please not the
(listening-in) with	changed grounding conditions and the situation of the supply voltage (see "Encoder output").
PWM 20 in the	Depending on the ATS software version and under compliance with the notes listed above,
position control	the PWM 20 can be operated in a closed loop. However, using a signal adapter (e.g. SA 100,
loop of an	SA 110, …) is always required, or recommended.
NC-controlled	The following applies in addition:
machine tool	1. Switch off the machine!
	1. Switch off the machine!
	2. Then disengage the connecting elements!

20	HEIDENHAIN PWM 20 Testing Package – Cable and Connection Technology

3.1.1 Feed-through operation (listening-in)

"Feed-through" operation means connecting the PWM 20 into the control loop of an NC-controlled machine tool.

For diagnosing, the PWM 20 can be integrated into the control loop of an NC controlled machine tool via adapter cables at the encoder input X1 and the encoder output X2.

Note

Determine the IDs of the encoders on the machine axes before you configure the feedthrough mode.

NOTE: For this purpose, the PWM output must not be connected to the control! If the PWM output is connected to the control, the terminating resistors disturb the measuring functions of the PWM.

For the feed-through mode the power supply must be switched to the subsequent electronics in the ATS software.

Set the checkmark in feed-through mode only.

If no subsequent electronics is connected, the encoder is not powered (error message).

The feed-through mode is supported as of the software version 2.6. We recommend always using the most recent software version (see www.heidenhain.de).

The feed-through mode cannot be used for all interfaces supported by the ATS.

In principle, the following interfaces allow for the loop-through mode:

EnDat, Fanuc, Mitsubishi, 1 Vpp, TTL, 11 µApp

EnDat / Fanuc / Mitsubishi

Metallic isolation is possible with the service adapters SA 100 and SA 110.

No metallic isolation, if the measurement is conducted with the PWM 20 only.

For encoders that also support incremental signals, the incremental signals can now also be displayed and evaluated.

August 2014

Overview of cables and adapters

EnDat 2.1

Normally, the only communication over the EnDat interface takes place during the start-up stage of the NC (interrogation and transfer of the absolute position data):

"Listening in" on the EnDat communication is not possible. (The synchronization time is too short for the PWM 20.)

The 1 Vpp signals A and B can be displayed.

Note

SIEMENS NC controls currently use EnDat 2.1 with A/B signals and do not support the monitor function!

EnDat 2.2

Communication takes place continuously. However, there is no prescribed communication pattern. Instead, every OEM determines the sequence of EnDat communication on his own.

No universal “listening in” on the communication is possible.

The monitor function is only possible, if the valuation numbers for online diagnosis are included in data transfer. (The following controls support the monitor function: TNC 620, TNC 640,

iTNC 530 [as of NC-SW 34049x-04], iTNC 530 HSCI with diagnostic function and DRIVE-DIAG.)

Synchronization with communication may take some time.

1 Vpp

No metallic isolation, if the measurement is conducted with the PWM 20 only.

Metallic isolation is possible with the SA 100.

The PWM 20 picks off the signals; without 120 ohm signal termination.

The limit frequency is influenced by the test setup (adapter cable, etc.)

11 µApp

The line is interrupted in feed-through mode, i.e. the PWM 20 has an 11 µApp receiver and reproduces the (emulated) input signals at the 11 µApp output.

The limit frequency is influenced by the test setup (adapter cable, etc.)

Not yet approved for ATS V2.8. Signal errors may occur!

TTL

Without PWT switchover:

The PWM 20 picks off the RS-485 signals, i.e. a standard RS-485 receiver without 120 ohm termination is connected to the lines.

DANGER

The test cables for feed-through operation are not intended for regular machining. Due to the great variety of machine designs and consequently very many grounding variants, not all testing cables can be checked out to a tee.

It is absolutely necessary that you check out the safe and proper function of respective testing cables for every test situation!

Uncontrolled axis movements cannot be ruled out when working with testing devices and cables in feed-through mode.

22	HEIDENHAIN PWM 20 Testing Package – Cable and Connection Technology

DANGER

Integrating a PWM 20 into the control loop has an influence on power supply and grounding conditions (see instructions "Installation/Commissioning“ ID 729905-91). The feed-through function must be handled with great care and caution!

No persons are allowed within the working range of the machine! Ensure that vertical axes cannot fall down!

Do not disengage any connecting elements during the measurement!

Move the machine axis to the middle of the traverse range before you connect the PWM 20!

When you have connected the PWM 20 into the control loop of the machine, check whether the axis concerned can be traversed in a controlled manner.

One operator must be at the EMERGENCY STOP switch to make sure that the machine can be switched off at any stage of this "setup phase"!

Possible axis behavior caused by grounding problems:

-Uncontrolled machine movement

-Machine switches off (EMERGENCY STOP)

-Machine axis drifts

-Machine axis accelerates with rapid traverse

Note

HEIDENHAIN recommends running the feed-through mode with floating supply with the service adapters SA 100 / SA 110.

Note

The encoder output (OUT) of the PWM 20 must not be connected,

if the PWM test setup was prepared for feed-through operation.

if an absolute encoder on a machine axis is supposed to be inspected while the machine is not switched on (e.g. reading out the encoder memory to determine the encoder model).

Therefore, the output cable to has to be disconnected from the control for this special test. Reason: As long as the control is connected, the terminating resistors of the PWM 20 encoder output disturb the measuring function.

August 2014

Overview of cables and adapters

3.2SA 100/110 Service Adapter for floating feed-through operations (listening-in)

3.2.1 SA 100 Service Adapter (online diagnosis)

The SA 100 Service Adapter serves to connect the PWM 20 and the IK 215 into the measuring circuit of the machine axis ("closed loop").

Using the SA 100 allows for controlled traverse of the machine axis during measurement.

Note

Closed-loop operation with SA 100 is possible with the EnDat 02, 21 and 22, Fanuc and Mitsubishi interfaces. Moreover, the encoder and the control must support the diagnostic function.

If an SA is connected into the measuring circuit, the ATS software no longer can actively intervene in data transfer (control/encoder) to delete errors and warnings, etc.

The supply voltage must be provided by the PWM 20; do not activate "Use power supply from subsequent electronics"!

The data transfer can only be listened in (monitored)!

For more information, refer to the section “Feed-through operation (listening-in)" on page 21.

The diag output of the SA is connected to the input (IN) of the PWM 20 (or of the interface card IK 215 IN). The data transfer between the encoder and the subsequent electronics can be observed via optocouplers (inactive listening-in).

24	HEIDENHAIN PWM 20 Testing Package – Cable and Connection Technology

3.2.2 SA 110 service adapter (online diagnosis) for floating feed-through operation (listening-in)

The SA 110 Service Adapter serves to connect the PWM 20 and the IK 215 into the measuring circuit of the machine axis ("closed loop"); data transfer is purely serial (no incremental signals). Using the SA 110 allows for controlled traverse of the machine axis during measurement.

Note

The following absolute interfaces allow for closed-loop operation:

-EnDat 2.2 (purely serial, no incremental signals)

-Fanuc

-Mitsubishi as of version 02 (with PWM 20 only) The TNC must support the diagnostic function.

If an SA is connected into the measuring circuit, the ATS software no longer can actively intervene in data transfer (control/encoder) to delete errors and warnings, etc.

The supply voltage must be provided by the PWM 20; do not activate "Use power supply from subsequent electronics"!

The data transfer can only be listened in (monitored)!

For more information, refer to the section “Feed-through operation (listening-in)" on page 21.

August 2014

Overview of cables and adapters

3.3EnDat 2.1 / 2.2 absolute interface with incremental signals

3.3.1 Measuring the absolute EnDat interface with A/B incremental signals, without subsequent electronics

HEIDENHAIN PWM 20 Testing Package – Cable and Connection Technology

3.3.2Feed-through operation (listening-in) with SA 100 and PWM 20/IK 215 in an absolute EnDat / SSI Mot.Enc. measuring circuit with 25-pin D-Sub connector (NC side)

August 2014

Overview of cables and adapters

3.3.3Feed-through operation (listening-in) with SA 100 and PWM 20 / IK 215 in an absolute EnDat position encoder measuring circuit

HEIDENHAIN PWM 20 Testing Package – Cable and Connection Technology

3.3.4Feed-through operation (listening-in) with SA 100 and PWM 20/IK 215 in an absolute EnDat position encoder measuring circuit with 15-pin D-Sub connector (NC side)

August 2014

Overview of cables and adapters

3.3.5Feed-through operation (listening-in) with SA 100 and PWM 20 / IK 215 in an absolute EnDat motor encoder measuring circuit with assignment converter (synchronous motor side)

HEIDENHAIN PWM 20 Testing Package – Cable and Connection Technology

3.4EnDat 2.2 absolute, purely serial, no incremental signals

3.4.1Feed-through operation (listening-in) with SA 100 and PWM 20 / IK 215 in an absolute EnDat position encoder measuring circuit (encoder side)

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Overview of cables and adapters

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