Baumer N 152 User Manual

Operating instructions

Interface description
N 152 spindle position display (SPA)
Firmware 01

Version 1.10 and up

Contents Page

1. General information 2

1.1. Safety precautions 2

1.2. SPA description and explanation 3

2. Terminal assignment 3

3. Interface 5

3.1. Interface data 5

3.2. Protocol 6

3.3. Checksum (Cyclic Redundancy Check) 6

3.4. Data transmission properties 6

3.5. Broadcast commands 6

3.6. Data saving 7

3.7. Transmitting and reading negative values 7

3.8. Transmitting and reading position values (decimal point) 7

4. Command explanations 8

4.1. General information 8

4.2. Operating commands 8

4.3. Parameter commands 15

4.4. Identifier (address) commands 23

4.5. Specific commands 25

5. Error warnings 27

5.1. CRC error 27

5.2. Format error 27

5.3. Display error indication 27

6. Overview on commands 28

7. Technical data 29

7.1. Dimensions 30

8. Part number 30

Baumer IVO GmbH & Co. KG 02.10

Dauchinger Strasse 58-62 • DE-78056 Villingen-Schwenningen Subject to modification
Phone [phone]
www.baumer.com

• [e-mail]

• Fax [phone] in technic and design.

• 171.02.315/4

N 152

1. General information

1.1. Safety precautions

General remarks

The equipment is designed and assembled according to the prevailing regulations of technology. The equipment
left the manufacturer in perfect working order and in line with all safety-relevant conditions. To maintain this
status of the equipment, it is imperative to stick to the following when installing and using the device:

- use only according to the intended purpose,

- observation of any precautions regarding safety and hazards,

- observe the present manual and especially the relevant safety precautions!

Make sure that the operating manual and especially the chapter describing the safety precautions is read and
well understood by the staff in charge. Supplementary to the operating instructions, ad other generally or legally
relevant regulations regarding accident prevention and environmental care are to be considered and observed.
This manual is a supplement to already existing documentation (product information, mounting instructions,
catalogues).

Intended purpose of the equipment

Intended purpose of the equipment is industrial process monitoring and control in metal, wood, plastic, paper,
glass and textile etc. industry.
It is imperative that the equipment is applied only

- in properly installed condition and

- in line with the relevant technical data!

Any operation outside the technical specifications/parameters is improper use and in conjunction
with the equipment/processes/machines to be monitored/controlled might lead to

- fatal injuries

- serious damage to health,

- damage to property or corporate equipment or

- damage to the device!

Any overvoltage the device might be exposed to at its connecting terminals has to be limited to the values
stipulated in overvoltage category II (see technical data).

The device must not be operated

- in hazardous areas where is danger of explosion,

- as medical equipment or in medical areas,

- or in any applications expressly named in EN 61010!

If the device is utilized for control/monitoring of machines or processes where as the result of a
failure/malfunction or incorrect operation of the device might occur

- any threats to life,

- risks of damage to health or

- any risk of damage to property or environment
the corresponding appropriate safety precautions must be taken!

Do not open the housing of the device or proceed any modifications! Any modifications of the device can affect
operating safety and result in danger!
Do not proceed any repairs but return defective devices to the manufacturer!

Installation/commissioning

In case of any extraordinary incidents (including in the operating behaviour) that impair safety switch off the
device immediately.
Installation must be carried out by suitably trained experts only. After proper mounting and installation the device
is ready for operation

Maintenance/repairs

Always disconnect the power supply of all appliances involved. Maintenance and repair work must only be
carried out by suitably trained experts.
If troubleshooting is unsuccessful, do not continue using the device but contact the manufacturer.

.

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1.2. SPA description and explanation

Mounting the spindle position display (SPA) is by docking hollow shaft onto spindle shaft (max.14 mm in
diameter).The hollow shaft is fixed to the spindle shaft by hexagon screw and secured by power grip.
This way, the SPA is mounted in an overhung position and secured against torsion by torque support provided at
rear of the housing. The SPA features an absolute multiturn sensing system capable of detecting the position
after several spindle turns even in powerless state. Position data will be retained even in case of power failure
(min. 10 years).
The current position value is indicated in the two-line backlit LCD display (2x 5 digits, numeric), optionally
together with the target transmitted by the control (master). Two arrows indicate the editing engineer the
direction the spindle must be turned to for aligning actual value with target. As soon as actual value is in
alignment with target and within the permitted tolerances, the target will disappear. By corresponding master
parameterization the display can be turned by 180° enabling vertical respectively horizontal installation. SPAs are
networked by M8 connector, power supply is by the same cable directly from master. SPA parameterization by
master only.

indication „target“

arrows indicating the required direction for target/actual value alignment

indication „actual value“

N 152 enables motor connection using the 12-core cable. Two softkeys on the
keypad serve for manual motor trigger. Automated motor trigger by master is
also possible. Motor supply is provided separately.

2. Terminal assignment

Pin Assignment Core colour DIN47100

Pin 1 Tx/Rx-, RS485 white orange

Pin 2 Tx/Rx+, RS485 brown brown

Pin 3 Sensor supply +24 V yellow red

Pin 4 Sensor supply 0 V green black

Connector M8

IEC757

1
3

2

4

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Connecting motor to SPA N152

Motor connection to SPA is provided by 12-pin female connector.

Pin Assignment Significance Core colour

Pin A -- n.c. --

Pin B IN 1 motor ccw yellow

Pin C IN 2 motor cw blue

B

K

A

L

C

D

J

M

H

E

G

F

Pin D IN 4* speed green

Pin E -- n.c. --

Pin F -- n.c. --

Pin G -- n.c. --

Pin H -- n.c. --

Pin J -- n.c. --

Pin K OUT 3 error signal white

Pin L IN 3* speed brown

Pin M GND GND black

IN 3* IN 4* speed rpm Dunker
1 0 slow 200
0 1 medium -­1 1 high 3600

Circuit diagram

24 V

n.c.
n.c.

0 V

A
B
C
D
E
F
G
H
J
K

Error
L
M

Linkslauf
Rechtslauf
Drehzahl
intern nicht beschaltet
nicht belegt
nicht belegt
nicht belegt
nicht belegt
Motorstörung
Drehzahl
GND

n.c.

1

24 V

2

0 V

3

IN 1 Ausgang

4

IN 1 Eingang

5

IN 2 Ausgang

6

IN 2 Eingang

7

(Logik 24 V)

8

OUT 1

IN 1 (links)
IN 2 (rechts)
IN 4 (speed)

M

AI- (0...10 V)

Betriebs­spannung

Freigabe

Linkslauf

Freigabe

Rechtslauf

Enable

AI+ (0...10 V)

OUT 3 (fault)

IN 3 (speed)

Motor

Connecting the motor supply

Motor supply is by 8-pin connector provided at the motor.

Pin Assignment Significance Core colour

Pin 1 Ue + 24 V motor supply red

Pin 2 GND 0 V ground relating to UE blue

Pin 3 OUT ccw start ccw run white

Pin 4 IN ccw start ccw run brown

Pin 5 OUT cw start cw run green

Pin 6 IN cw start cw run yellow

Pin 7 Enable logic +24 V grey

Pin 8 n.c. n.c. pink

N 152

SPA

7

6

8

1

3

5

4

2

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Circuit diagram

Betriebs­spannung

Freigabe

Linkslauf

Freigabe

Rechtslauf

Enable

1

24 V

2

0 V

3

IN 1 Ausgang

4

IN 1 Eingang

5

IN 2 Ausgang

6

IN 2 Eingang

7

(Logik 24 V)

8

n.c.

Connect power supply that is free from interference emission. The supply must not be used as
parallel supply of drives, shields, magnetic valves, etc.
Apply DC according to the terminal assignment
Power supply: 24 VDC ±10 %

Motor

N 152

24 V

n.c.
n.c.

0 V

A
B
C
D
E
F
G
H
J
K

Error
L
M

Linkslauf
Rechtslauf
Drehzahl
nicht belegt
nicht belegt
nicht belegt
nicht belegt
nicht belegt
Motorstörung
Drehzahl
GND

SPA

OUT 1

IN 1 (links)
IN 2 (rechts)
IN 4 (speed)

M

AI- (0...10 V)

AI+ (0...10 V)

OUT 3 (fault)

IN 3 (speed)

Shield

Use shielded cables only. Ground of the shield must be provided at the machine.
(two examples corresponding to the cable applied, see drawings).

Abschirmungsanschluss

3. Interface

3.1. Interface data

Type: RS485

Baudrate: 19200

Parity: No

Data bits: 8

Stop bits: 1

Handshake: Nein

Checksum: Ja (CRC)

Timeout reply*: 0,1...60 ms

BUS switching time**: <0,1 ms

* To avoid bus collisions a minimum timeout reply of 1 ms (default

parameter) is to be kept, i.e. the time elapsed between transmitting the
last bit of the query until start transmitting the 1st bit of the SPA response.
The operator should see that due to the minimized timeout reply of 1 ms
the bus switching time after having transmitted the last bit must not exceed
1 ms.
The default parameter of 1 ms can optionally be altered by serial interface
in steps of 0,1 ms within the range of 0,1 ... 60 ms. Refer to command „x“
(78h).

** The BUS switching time is the time the SPA requires to be ready again for

transmission receipt after having replied to host.

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N 152

3.2. Protocol

The spindle position display operates with ASCII protocol (clear text protocol). Depending on the command, the
protocol data package varies between 5 and 17 bytes.

Byte Hex code Significance Values

1 01H SOH = start of heading permanent 01h
2 XXh Adr = identifier 00...31dez + 20h offset (identifier 00 = 20h)
3 XXh Cmd = command code specific commands

4-n [XXh..XXh] [Data] = data 20h-7Fh
n+1 04h EOT = end of transmission permanent 04h
n+2 XXh CRC = checksum 00h...FFh

3.3. Checksum (Cyclic Redundancy Check)

For optimized error-free data transmission the CRC byte is added after the footer token (EOT, end of
transmission) to the string to be transmitted. Upon receiving a command the CRC byte transmitted is
crosschecked with the auto-calculated CRC byte.

Algorithm:

1) Reset CRC byte.

2) Rotate CRC byte by 1 bit to the left.

3) Link result to first data byte XOR.

4) Rotate result by 1 bit to the left.

5) Link result to the second data byte XOR.
:
x) Rotate result by 1 bit to the left.
y) Link result to the last data byte (ever 04H) XOR.
z) Add result as CRC after the footer token (04H) to the string transmitted.

Note:

1101 0000 RL 1010 0001 Important: Bit 7 is shifted in bit 0 during rotation

Example:

Transmitted string less CRC = 01h 20h 43h 04h
CRC-Byte = 0Ah

0000 0000 RL 0000 0000 XOR 0000 0001 (01h) = 0000 0001

0000 0001 RL 0000 0010 XOR 0010 0000 (20h) = 0010 0010

0010 0010 RL 0100 0100 XOR 0100 0011 (43h) = 0000 0111

0000 0111 RL 0000 1110 XOR 0000 0100 (04h) =

Legend: RL = rotate left; XOR = antivalence link

0000 1010

= CRC

3.4. Data transmission properties

For reasons of compatibility, within the complete multicon system the amount of data is always the same (see
table in chapter 6), no matter how many digits are in the display. For example, command “R” (read actual value)
comprises a transmitted data amount of 6 bytes, but only 5 digits are indicated in the display. If it is a negative
value, digit 6 respectively digit 5 is always 0 (30h).

3.5. Broadcast commands

Some specific commands are designated so-called broadcast commands. As soon as the master broadcasts a
command to identifier 99, the command is addressed to every multicon devices in the network. Each individual
SPA will accomplish the respective command but will not respond any confirmation to master.

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N 152

3.6. Data saving

Specific parameters are saved in EEPROM (1.000.000 writing cycles). Data saving is via interface upon every
parameter transmission to SPA.

Important:

There should not be a cyclic transmission of these parameters to SPA but only if necessary, for example in case
of parameter alteration. The relevant parameters saved in EEPROM are listed in the charts in chapter
“Command explanations” or “Overview on commands”.

3.7. Transmitting and reading negative values

The minus sign (2DHex) is always transmitted by digit 6 of the data field.
Example: Taking for granted a negative target of –1,5 and a programmed resolution of 1/10, the transmitted
value is –00015.

3.8. Transmitting and reading position values (decimal point)

Position values as for example target (command „S“), offset (command „U“) or end positions (command “g”) are
generally transmitted and read without decimal point. Visualization in the display corresponds to the format in the
data field of the interface command.
Thus, the transmission format depends on the resolution (see command „a“).

Example 1: resolution = 1/100; target = 278.50; actual value = 1.00 Display

SOH Adr Cmd Profile no=17

01h 20h 53h 31h 37h

Example 2: resolution = 1/10; target = 278.5; actual value = 1.0

SOH Adr Cmd Profile no=17

01h 20h 53h 31h 37h

30h 32h 37h 38h 35h 30h

30h 30h 32h 37h 38h 35h

Target = 278.50

Target = 278.5

EOT CRC

04h 29h

EOT CRC

04h 29h

2 7 8.5 0

1.0 0

2 7 8.5

1.0

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N 152

4. Command explanations

4.1. General information

The following is describing the individual interface commands broken down into the four groups below:

- operating commands [ commands required during operation ]

- parameter commands [ commands for SPA parameterization ]

- identifier commands [ commands to indicate or alter the device identifier (address)]

- specific commands [ commands for specific functions as device reset or version number readout]

The following abbreviations are applied:

SOH = start of heading (header token)
EOT = end of transmission (footer token)
Adr = device identifier, including offset 20h
Cmd = command
Sub = sub-Command
Data = data transmitted or received
CRC = checksum (cyclic redundancy check)

4.2. Operating commands

Command

code

C (43h) 3 / 11 X - - - Check if actual value = target
D (44h) 1 X X X - Start motor
F (46h) 4 X - - - Read device status and error
R (52h) 6 X - - - Read actual value
S (53h) 8 X X - X Read / write target
U (55h) 6 X X - - Offset
V (56h) 2 X X X X Read / write profile number
Z (5Ah) 6 X X X X Set preset

t (74h) 6 - X - - Transmit tool number

u (75h) 6 - X - - Transmit optional column of figures

4.2.1. Check Position „C“ (43h)

This command provides the alignment status of target versus actual value. If the actual value is within the target
tolerance window, the response will be „o“ (6Fh) for OK together with the current profile number. If the actual
value is outside the tolerances, „x“ (78H) followed by the current profile number will be replied. In case of any
SPA error occurred, the response will be “e” together with the active profile number.

Example: (active profile number = 05)

Transmission

Response if actual value within the tolerances:

Response

Response if actual value is outside the tolerances:

Response

Following values relating to status are possible:

Status Significance
o (6Fh) Actual value = target
x (78h) Actual value ≠ target
e (65h) SPA error

Data amount

in Bytes

SOH Adr Cmd EOT CRC

01h 20h 43h 04h 0Ah

SOH Adr Cmd Status Profil-Nr. = 05 EOT CRC

01h 20h 43h

SOH Adr Cmd Status Profil-Nr. = 05 EOT CRC

01h 20h 43h

read write Broad-

cast

6Fh 30h 35h

78h 30h 35h

Saved in

EEPROM

04h A5h

04h 1D

Signficance

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N 152

Command extension Check Position „CX“

Command extension „Check Position CX “provides besides the alignment status target versus current value also
the contents of the status and error register as well as the current value. The profile number is not transmitted.
For the relevant status parameters (status) refer to the table above, the significance of the individual bits in the
status and error register is explained under command readout device status „F“.

Example:

Transmission

Response

SOH Adr Cmd

01h 20h 43h 58h 04h A8h

SOH Adr Cmd

01h 20h 43h

SCmd

EOT CRC

Status

Status-Reg Error-Reg Actual value = -12.50 EOT CRC

78h 80h 80h 80h 80h 2Dh 30h 31h 32h 35h 30h

04h 0Fh

4.2.2. Motor start enable „D“ (44h)

This command is utilized to read the actual SPA enable status or to set respectively clear motor start enable.
The following modes are available:

Status Significance

0 (30h) abort enable motor start, motor stop
1 (31h) start enable SPAs of group 1
2 (32h) start enable SPAs of group 2
3 (33h) start enable SPAs of group 3

Start is also enabled by broadcast command (identifier = 99) to all SPAs at the same time. Refer to example 3.

Example 1: read current enable status (status = 0 = disable)

Transmission

Example 2: start enable of a specific motor

Transmission

Example 3: start enable for all motors by broadcast command (identifier=99)

Transmisison

: : :

SOH Adr Cmd EOT CRC

01h 20h 44h 04h 04h

Response

Response

Response Not confirmed

SOH Adr Cmd Stat. EOT CRC

01h 20h 44h

SOH Adr Cmd Stat. EOT CRC

01h 20h 44h

SOH Adr Cmd Stat. EOT CRC

01h 20h 44h

SOH Adr Cmd Stat. EOT CRC

01h 83h 44h

30h

31h

31h

31h

04h 64h

04h 66h

04h 66h

04h 7Bh

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