HEIDENHAIN TNC 151 Q User manual

Contents
1.
2.
2.1
2.2
2.3
2.3.1
2.3.2
2.3.3
2.3.3.1
2.3.3.2
2.3.3.3
2.4
3.
3.1
3.2
3.3
3.4
3.4.1
3.4.2
3.4.2.1
3.4.2.2
3.5
3.6
3.6.1
3.6.2
3.6.3
3.6.4
3.6.5
3.7
3.8
3.9
3.10
3.11
3.12
3.12.1
3.12.2
3.13
3.14
3.15
3.16
4.
5.
5.1
5.2
5.3
6.
6.1
6.1.1
6.1.2
6.1.3
6.1.4
6.1.5
6.1.6
6.1.7
6.2
6.2.1
6.2.2
6.2.3
6.2.3.1
2
we
General information 4
Combined technical specifications TNC 151 B/TNC 155 B and TNC 151 ‘Q/TNC 155 Q 5
Specific data for TNC 151 B/TNC 155 B 6
Specific data for TNC 151 Q/TNC 155 0 6
Transducers for TNC 151/TNC 155 8
Transducers for TNC 151 B/TNC 155 B, TNC 151 Q/TNC 155 Q - 8
Transducers with distance-coded reference marks for TNC 151/TNC 155 8
Transducers for TNC 151 .R/TNC 155.R 9
Transducers and EXE-units for the X, Y, Z-axes 9
Transducers and EXE-units for axis IV 9
Transducers for TNC 151 .R/TNC 155.R 10
Rotairy encoders for spindle orientation (axis V) 10
Functions of control inputs/outputs 11
External buttons “Start”, “Stop” and “Rapid traverse” 11
External switch “Manual traverse” in conjunction with X, Y, Z, IV-axis-release 11
Feed rate release 12
M-, S- and T-functions, Strobe signals and feedback signal:“Auxiliary function completed”- 12
Output of M-functions 13
Output of S- and T-functions within Tool Call-block 16
Output of T-functions (tool numbers or tool store numbers) 17
Output of S-functions (spindle speeds) 18
Emergency Stop 20
Inputs “Reference end position” and “Reference pulse inhibit” 23
Loca.tion of “Reference end position” - trip dogs when using linear transducers 24
Loca.tion of “Reference end position” and “Reference pulse inhibit” - trip dogs when using
rotary encoders 24
Procedure for traversing over reference points in an axis 25
Traversing over distance-coded reference marks 26
Special sequence for reference mark approach 26
“Software limit switches” 26
External direction buttons and external feed rate potentiometer 27
Control “in operation” 28
Control in “Automatic” mode 28
Lock “Spindle on” 28
Inpuit for electronic handwheel-servos _ 29
Inpuit for electronic handwheel HR 150 or HR 250 29
Input for dual-handwheel unit HE 310- 29
Input for touch probe systems 29
Nominal value-outputs 30
Wiring and grounding diagram TNC 151 B/TNC 155 B 31
Wirin,g and grounding diagram TNC 151 Q/TNC 155 0 31
External data input/output via RS-232-C l(V.24) data interface 32
Program storage 34
Floppy disc unit FE 401 34
ME lOl/ME 102 Magnetic tape cassette units 35
Connection cables 36
Machline parameters / User-parameters _ 38
Machine parameters determined by the machine design or freely determined parameters 41.
Selection of “controlled” axes, position display axes and/or inactive axes 41
Machline parameters for feed rates 42
Machine parameters for variable contour pockets 43
Machline parameters for reference mark approach ,44
Machline parameters for output of spindle speeds 45
Machline parameters for output of tool numbers and tool store numbers _ 48
Machine parameters for other functions 49
Machine parameters which require optimization during commissioning and preliminary values- 51
Common machine parameters for both ramp characteristics 51
Machine parameters for the “linear characteristic” (machine parameter 60 - 1) 52
Machine parameters for “square root characteristic” (machine parameter 60 = 0) 53
Error message GROSS POSITIONING ERROR and POSITIONING ERROR 54

6.2.4
6.3
6.4
6.4.1
6.4.2
6.4.2.1
6.4.2.2
6.4.2.3
6.4.2.4
6.4.3
6.5
6.6
Machine parameters which are determined after compilation of the parameters for the ramp
characteristic 54
Machine parameters in conjunction with the PLC - 56
Machine parameters in conjunction with the RS-232-C (V.24) data interface 57
F/S-232-C standard data interface via “EXT’‘-mode 59
Operating mode “Transfer blockwise” 60
“Transfer blockwise” using, the HEI DENHAIN Floppy disc unit FE 401 60
“Transfer blockwise” via EXT-mode 60
“Transfer blockwise” from a peripheral unit to the TNC 151/TNC 155 64
Characters and block formats for various operating modes 65
Hardcopy printout of graphics (TNC 155 only) 66
Machine parameters for handwheels and touch probe systems 67
Machine parameters for 3D-Touch probe systems 67
7.
7.1
7.2
7.2.1
7.2.2
7.3
8.
8.1
8.2
8.3
8.3.1
8.3.2
8.3.3
8.4
8.4.1
8.4.2
8.4.3
8.5
8.6
8.7
8.7.1
8.7.2
8.8
8.8.1
8.8.2
8.8.3
8.9
Commissioning 68
Dialogue in 2 languages 68
Check list for commissioning 69
Checks prior to machine switch-on 69
Checks after switch-on of adaptor cabinet 70
Memory test after switch-on 70
Optimization of TNC 151/TNC 155-parameters 71
Adjustment check-list 71
Axis designation for NC-machines and “right-hand-rule” 72
Selection of machine axes 73
Assignment of transducer inputs to the control - internal axes 73
Axis switchover for axis IV 73
Designation of axis IV 73
Input/Output diagram for machine parameters 74
Read-in of machine parameters when memory erased 74
Alteration of machine parameters 75
Checking and correction of axis-traversing and counting directions 77
Setting software limit switch ranges 78
Offset adjustment 78
“Linear ramp characteristic” adjustment 80
Fine adjustment of trailing error for “linear ramp characteristic”- 80
Acceleration (linear and radial) 82
Adjustment of “square root characteristic” 83
Run-in behaviour with acceleration for “square root characteristic”- 84
Approach speed 1 urn before nominal position for “square root characteristic” 85
Position supervision for “square root characteristic” 85
Integral factor X, Y, Z, IV 86
9. Customized macros 87
9.1 Dialogue languages 88
9.2 Testing of customized macros 88
9.3 Repetition of customized macros 88
9.4 Example of a customized macro 89
9.5 Programming of a customized macro within the NC-program memory 90
9.6 Nesting of customized macros 91
9.7 Special function of parameters 91
9.8 Binary output of customized macros for programming a PLC-EPROM 92
9.9 Customized macros within a machining program 93
9.9.1 Example: Definition of the customized macro “Bolt hole circle” in a machining program- 93
9.9.2 Machining program using the macro “Bolt hole circle” 94
10. Spindle orientation (optional) 95
10.1 Machine parameters for spindle orientation 95
10.2 Spindle orientation with standard PLC-program 96
11.
12.
13.
14.
List of machine parameters 97
Adapter cables 104
Dimensions
106
Connections and PLC-allocation
_,’ 112
3

Transducer TNC 151/155-version
input without separate PLC-board(s)
Sinusoidal TNC 151 B/TNC 155 B
signals TNC 151 F/TNC 155 F”
TNC 151/TNC 155-version
with PLC-board(s)
TNC 151 Q/TNC 155 Q
TNC 151 W/TNC 155 W”
TNC 151 QR/TNC 155 OR
TNC 151 WFVTNC 155 WR”
*without 3D-movement and “Transfer blockwise”
We are constantly working on the further development of our TNC-controls. It is therefore possible that a
certain control version may deviate from the version described in this manual.
1. General information
The HEIDENHAIN TNC 151/TNC l55-controls are equipped with an integral PLC and are available in two
basic versions:
HEIDENHAINI TNC 151 B/TNC 155 B
These control versions are equipped with a simple interface for connection to an external PLC. This so-
called “standard interface” has remained unchanged since TNC 145, thus making all contouring controls
compatible.
This standard interface has been realized by a PLC-standard program. The following interface description is
based on this PLC-standard program.
TNC 151 B/TNC 155 B is supplied with the PLC-standard program. Certain control functions of this PLC-
standard program can be activated via machine parameters.
HEIDENHAIN TNC 151 Q/TNC 155 Q
Control with a PLC-power board PL 100 B having
.63 inputs, 9 of which have fixed allocations,
.31 outputs
or with PLC-power board PL 110 B having
.63 inputs, 9 o-f which have fixed allocations
25 outputs,
.3 bipolar output pairs
On delivery, this control version also has the standard PLCprogram stored.
By using a further PLC-board PL 100 B or PL 110 B, the PLC-inputs and outputs may be doubled.
HEIDENHAIN TNC 151/TNC 155 - Export versions
TNC 151 F/TNC 155 F, for external PLC.
TNC 151 W/TNC 155 W, with integral PLC and external board
These control versions are identical to the versions TNC 151 B/TNC 155 B and TNC 151 Q/TNC 155 Q with
exception of the functions “transfer blockwise” and 3D-interpolation.
HEIDENHAIN TNC 151.R/TNC 155.R
The suffix R indicates that the control versions has squarewave (TTL) signal inputs. Transducer connections
are via an EXE-digitizing unit.
4

HEIDENHAIN TNC lSl/TNC 155 with SPINDLE ORIENTATION option
.Spindle orientation is available as an option and necessitates an extension of TNC-hardware.
The NC-software for spindle orientation, i.e. for the fifth axis is contained in every TNC 151 B/TNC 155 B.
Installation hints for VDU-units
(Control versions TNC 151 permit the installation of the VDU-unit BE 111 (9 inch screen) or BE 211
(12 inch screen). TNC 155~versions require the VDU-unit BE 411 (12 inch graphic display screen).
When installing VDU-units, it should noted that these units are sensitive to magnetic fields. The hold and
geometry o-f the screen picture can be distorted by magnetic cross-talk.
In the case cofalternating current fields, these can cause periodical picture displacement or picture
distortion with the beat frequency from the picture and the mains frequency.
For this reason, permanent magnets, motors, transformers, magnetic switches and similar should not be
located in the immediate vicinity of the VDU. As an approximation, we recommend a minimum distance
of 0.5 m between the source of interference and the VDU-housing.
In order to maintain a substantial distance between the VDU and the control unit (TNC), we recommend
that the TNC only be mounted to the right or beneath the VDU.
2. Combined technical specifications for TNC 15l/TNC 155
All TNC 151/TNC 155 inputs and outputs may only be connected to electric circuits with protective low
voltage.
Mains power supply
‘Power consumption
Selectable 100/120/l 40/200/220/240 V + 10 %/ - 15 %, 48 . 62 Hz
If -the permissible mains voltage tolerances cannot be held, we recommend
a voltage regulator type “Voltkraft” which1 is available from Messrs. Conrad
Electronic. The regulator can also be purchased from the HEIDENHAIN
Service Department.
TRIG 151
ca. 60 W (with 9” visual display unit BE 1‘I1 or with 12” visual display
unit BE 211)
TNC 155
Permissible resistance of
earthing lead
Protection algainst distruction
of electronics
Ambient temperature
Protection
Weight
Logic and operating unit ca. 45 W
12” visual display unit BE 411 ca. 40 W
Current consumption of PLC-board PL 100 B/PL 110 B
1st board: 460 mA& 25 mA
(all inputs and outputs open, 2nd board disconnected)
2nd board: 360 mA & 25 mA
recommended: R -Z 100 mS2 or max. lead length 10 m with a 4 mm2
cross-section
1 kV with a 1 MHz surge to IEC 255-4
Operation 0 . . . + 45’C (+ 32’F . . . + 113’F)
Storage - 30 . . . + 70°C (- 22’F . . + 158’F)
’ \ Operating panel: IP 54 IEC 529
Control TNC 151 B/TNC 151 0: 12 kg
Control TNC 155 B/TNC 1
9” VDU-BE 111: 6,8 kg
12” VDU-BE 211: 10 kg
12” VDU-BE 411: 10 kg
PLC-board PL 100 B/PL 1
see section 13
55 Q: 12 kg
Dimensions OB: 1.2 kg
5

2.1 Specific data for TNC 151 B/TNC 155 B
Control inputs
Potential-free opto-couplers (switched into groups)
Operating voltage
Opto-coupler switched pax. 30 V -, filtered
= 15v
Opto-coupler open 5 8V
Loading per input 4 IOmA
Control relay outputs
Potential-free relay contact (switched into groups)
Operating voltage max.30V-/min. 15V-
Operating current per contact max. 50 mA
Permissible load Resistance load;
Inductive load only with quenching
diode parallel to inductivity
To prevent welding of contacts in the event of short circuiting, every contact is provided with a current limiting
resistor of 47 ohms in series.
Caution!
Connect control O-volt for inputs and outputs of control to a common groundin
See tiiring and grounding diagram TNC 151/TNC 155. Operational ground
2.2 Specific dalta for TNC 151 Q/TNC 155 Q
Nominal values and tolerances
External voltage supply for PLC
Nominal voltage: 24 V, -
Voltage range: 20.4 V to 28.8 V
Furthermore, superimposed alternating voltages with a relative oscillation width of 10 % - related to the average
DC-voltage value - are permissible.
Circuitry example:
Definition:
+2&V
g = DC-voltage average: 20.4 _. . 28.8 V
AU = Oscillation width: -= IO % related to u
k Au
toPLl00B/ll0B L
u
ov
Binary input signals (EO to E62 and E64 to El261
Nominal voltage: 24 V -,
Voltage range for signal “1”: 16.5 V to 30 V
Voltage range for signal “0”: - 3 V to + 4 V
Current range for signal “1”: 6.2 mA to 12.6 mA
Please note:
Interference signalsL1 ms at the PLC-inputs are filtered with a low pass Schmitt-Trigger-input circuit. Long
duration interference signalsmust befaded out via software.
6

Binary outputs signals (PL 100 B: A0 to A30, A32 to A62; PL 110 B: A0 to A24, A32 to A56 and “Emergency
stop“)
Nominal voltage: 24 V, -
Max. difference to supply voltage: d 3 V
Max. output current: 1.2 A
Permissible loading: Resistive load; inductive load only parallel to inductivity with quenching diode, max.
switching frequency: 50 Hz
Please note:
Adjacent PLC-outputs (e.g. A7 with A8) can be switched to parallel via resistors, e.g. 2-x 0,472.
A7 A8
I
max .l,Z A
c
$ G
$
0‘ d
Bipolar outputs (PL 110 B: A25 to A30 and A57 to A62)
Nominal voiltage: 15 V -
(measured between two bipolar outputs, with one output switched to signal “1” and the other to signal “0”)
Nominal current: 300 mA
Voltage range with nominal current: 14.0 V to 15.5 V
Max. output current 1.2 A for 1 minute
Current limitation range: 1.35 A to 1.6 A
Permissible load: Resistance load;
inductive load only with quenching diode parallel to inductivity
max. switching frequency: 50 Hz
Please note:,
Bipolar PLC-outputs may not be switched in parallel.
When using the bipolar outputs as binary output signals:
Voltage for signal “1”: ~14.2 V
Voltage for signal “0”: -=. 3.0 V
Nominal current: 300 mA
Max. output current 1.2 A for 1 minute
Output current supervision
Supervision of output currents of all bipolar outputs. Output J3/11 provides signal “1” if the sum of the out-
put currents of all bipolar outputs is -0.8 A to 0.9 A
Nominal voltage: 24 V -,
Max. output current: 55 mA to 65 mA
Max. difference to supply voltage: < 1.5 V

2.3 Transducers for TNC 151/TNC 155
2.3.1 Transducers for TNC 151 B/TNC 155 B, TNC 151 Q/TNC 155 Q
These control versions control the actual position with a digital step of 0.001 mm and subdivides the
signal cycle of the transducers by 20 x or IO x. Incremental linear transducers with a 20 pm or IO urn
grating pitch such as
.LS 107 (measuring lengths 240 mm to 3040 mm)
.LS 704 (measuring lengths 170 mm to 3040 mm)
.LS 403 or LS 404 (measuring lengths 70 mm to 1240 mm, up to 2040 mm with mounting spar)
.LID 300, LID 310
should therefore be used.
If accuracy requirements permit, measurement with e.g. rotary encoder type ROD 450 connected to the
drive spindle is possible. The required number of lines for the encoder iscalculated asfollows:
Line number / rev. = 50 x lead screw pitch (in mm) with 20 x evaluation (MP 12 - 15)
Line number / rev. = 100 x lead screw pitch (in mm) with 10 x evaluation (MP 12 -- 15)
For angle measurement (with axis IV) rotary encoder types ROD 250 and ROD 700 with 18,000
lines are available.
Pleasenote:
If an ROD 450 rotary encoder is to be used in conjunction with a gear for angular positioning, the error
of the rotary encoder isdecreased proportionally to the ratio of the gear.
The cable length between transducer and TNC-control must not exceed 20 m.
2.3.2 Transducers with distance-coded reference marks for TNC 151/TNC 155
When using linear transducers with distance-coded reference marks, the absolute position value can be
retrieved after a traverse of only 20 mm, i.e. after crossing two consecutive reference marks.
q ---- ~----------------- --._ ___-~.------.--------.
Measuring principle Dimensions in mm
The scale consists of a line grating with a 20 pm grating pitch and adjacent reference mark track. The spacing
between the reference marks varies by a definite amount. By evaluating the distance from one reference
mark to the next, the absolute position can be determined.
The following transducers are available with distance-coded reference marks:
.Sealed linear transducer LS 704 C
Measuring lengths 240 to 3040 mm
.Sealed linear transducer LS 107 C
Measuring lengths 240 to 3040 mm
.Sealed miniature linear transducer LS 403 C/LS 404 C
Measuring lengths 70 to 1240 mm (up to 2040 mm with additional mounting spar)
8

2.3.3 Transducers for TNC 151.R/TNC 155.R
For cable lengths which exceed 20 m between transducers and control or for transducers which exceed
3040 mm, the control versions TNC 151 .R/TNC 155.R are used.
2.3.3.1 Transducers and EXE-units for the X, Y, Z-axes
Transducers for the main axes X, Y, Z are connected to TNC 151 .R/TNC 155.R via 3-axis EXE-units with
separate voltage supply.
The max. cable length between EXE 8 .. and TNC 151 .R/TNC 155.R is 50 m and 20 m between the transducer
and the EXE. Th.e total cable length is therefore 70 m.
2.3.3.2 Transducers and EXE-units for axis IV
Subdivision within the pulse shaping electronics is always 5-fold.
a) Control of a rotary axis
Rotary encoder with EXE, with 1 max. cable length EXE / TNC
18 000 lines subdivision
ROD 250 / ROD 700 801, 5-fold 50 m connecting cable
RON 255 / RON 705
ROD 250 / ROD 700 602 D, 5-fold 1 m cable on EXE +
RON 255 / RON 705 9 m extension
ROD 271 Pulse shaping stage
RON 275 within ROD 1 m cable on ROD +
9 m extension
When using a rotary encoder with integral pulse shaping electronics or the pulse shaping electronics unit
EXE 602 D, the voltage supply is provided by the TNC 151 .R/TNC 155.R.
In order to maintain the correct supply voltage, the total length of the connecting cable between EXE 602 D
and the control is limited to 10 m.
b) Controll of a linear axis
Transducer Grating pitch/
Line number EXE, with
signal subdivision max. cable length EXE/TNC
LS 107, LS 107 c 20 j.,tm 801, 5-fold 50 m Extension cable
LS 704, LS 704 c
LS 403, LS 403 c
LS 404, LS 404 c
LS 107, LS 107 c 20 pm 602 D, 5-fold 1 m cable on EXE +
LS 704, LS 704 c 9 m extension
LS 403, LS 403 c
LS 404, LS 404 c
ROD 450 50 x Spindle pitch in mm 801, 5-fold 50 m connecting cable

2.3.3.3 Transducers for TNC 151.R/TNC 155.R
LB 326
-SC7 3m
LS 107
-3, m
LS 704 I LS 403 / LS 404.
‘z_--l3rn m
ml7 207g8501
207 985 02
’ Connecting cable, complete 207 620. LiYCY 25 x 0.34
Connecting cable wired one side only
209 009. LiYCY 25 x 0,34
u
TNC 151.R
TNC 155.R
207 985 01 200 720 01
Connecting cable, complete
LiYCY (IO x 0.14) + (2 x 0,5)
233 764 .’ Axis C:
Suggestion A
ROD 271 9 m max. 3 Axis C:
Suggestion B
ROD 250
ROD 700 lm , Axis C:
I) 1 19m , I I I~, , , , I 9 m max.
21 o‘436 .. FIEl Suggestion C
*Alternatively EXE 802 with 3 transducers with 20 pm grating pitch (3.axis-EXE)
2.4 Rotary encoders for spindle orientation (axis V)
The Vth axis has a transducer input for squarewave signals and 4-fold evaluation. HEZIDENHAIN rotary encoders
ROD 426 with II024 lines are used.
In this case, transducer supervision for axis V is to be inactivated.
IO

3. Functions of control inputs / outputs
3.1 External buttons “Start”, “Stop” and “Rapid traverse”
The external buttons “Start” and “Stop” are used for starting or interrupting program run or a positioning
procedure.
Button PLC-Allocation TNC 151 B/TNC 155 13 TNC 151 Q/TNC 155 Q
Multipoint connector Multipoint connector
PLC-Power board
Start E22 J 512 J 5/l
stop E23 J 5/l J 6112
Rapid traverse E21 J 513 J 512
The required push-buttons for “Stop” (opener) and “Start” as well as “rapid traverse” (closer) are incorporated
into the machine pendant or console by the machine tool manufacturer.
Depending on the programming of machine parameter 74, the function of the “rapid traverse” button overrides
all other programmed speeds i.e. on pressing the “rapid traverse” button, the machine moves in rapid traverse
regardless of any lower programmed feed rate.
It is left to -the discretion of the machine tool manufacturer as to whether a “rapid traverse” button is to be
fitted. A “rapid traverse” can be programmed directly into the TNC 150 via keyboard-entry
(“rapid traverse” = 15999 mm/min or 6299 inch/min.)
10
3.2 External switch “Manual traverse” in conjunction with X, Y, 2, IV-axis-release
In/Output PLC-Allocation TNC 151 B/TNC 155 E! TNC 151 Q/TNC 155 Q
Multipoint connector Multipoint connector
PLC-Power board
“Manual traverse” El9 J 515 J 514
Axis release X A0 J l/l J l/l
Axis release Y Al J II2 J II2
Axis release Z A2 J I/3 J l/3
Axis release IV A3 J II4 J l/4
The axis release relays X, Y, Z and IV close after pressing the start button for the reference point approach
routine according to the sequence programmed in parameter 59. The axis release relays remain permanently
closed after crossing the reference marks so that the machine is kept in a closed loop condition by the control.
Exception:
In all operating modes, the axis release contacts are opened by providing + 24 volts control voltage at input for
“Manual traverse” e.g. with traverse of machine in conventional mode with mechanical handwheels.
The positioning loop is closed again if,
.a feed command is output by the control (only for the duration of the feed command) or
.the 24 V is taken off at the input “manual feed”
Transfer of actual position data when opening the positioning loops
With the standard PLC-program as of program number 234 601 03, it can be programmed via machine
parameter 158 (setting of markers) as to whether the transfer of actual position data as nominal positions
data should take place via the “manual traverse” input
With the entry value 16 384 in machine parameter 158 transfer is initiated. Since the machine parameter
can be used to activate various functions, the entry values will have to be added if necessary.
Clamping of axes:
Machines, on which axes could move out of position when the closed loop is off, must be fitted with a clamping
facility.
Please note :
Clamped axes are indicated in the display by a decimal point which suffixes the axis designation.
11

3.3 Feed rate release
Input PLC-Allocation TNC 151 B/TNC 155 B TNC 151 Q/TNC 155 Q
Multipoint connector Multipoint connector
PLC-Power board
“Feed rate release” El8 J 516 J 515
By opening the input “feed rate release”, the speed can be ramped down to zero at (any time, by means of the
“machine acceleration” which is entered as a machine parameter during initial dialogue entry.
If the input “feed rate release” has been opened, this is indicated in the status display by the letter F (inverted).
3.4 M-, S- and ‘T-functions, Strobe signals and feedback signal: “Auxiliary function completed”
In/Output
Coded outputs M, S and T
Bit 1 ... 20
2 ... 2’
3 ... 22 Decade 1
4 ... 23
5 ... 20
6 ... 2’
7 ... 22
8 ... 23
Decade 2
Decoded outputs
M 03 Spindle cw
M 04 Spindle ccw
M 05 Spindle stop
M 08 Coolant ON
M 09 Coolant OFF
Gating signals
S-Strobe
M-Strobe
T-Strobe
Input: “Auxiliary function
completed”
PLC-Allocation
A7
A8
A9
Al0
All
Al2
Al3
Al4
Al5
Al6
Al7
Al8
Al9
A20
A21
A22
El7
TNC 151 B/TNC 155 B
Multipoint connector
J 212
J 213
J 214
J 215
J 216
J 217
J 218
J 219
J 2llO
J2ll-l
J 2112
J 3/l
J 312
J 313
J 314
J 315
J 5l7
TNC 151 Q/TNC 155 Q
Multipoint connector
PLC-Power board
-
J II8
J II9
J Ill0
J Ill1
-
J 2/l
J 212
J 213
J 214
-_
J 2l5
J 216
J 217
J 218
J 219
-
J 2110
J 2/l 1
J3ll
-
J 516
-
M-, S- and T-functions are provided statically via the same relay outputs of the control. To differentiate
whether an M-, S- or T-function is at the output, pulsed strobe signals “M-Strobe”, ‘S-Strobe” and “T-Strobe”
are used.
Via machine parameter MP 214 it can be determined as to whether a brief axis standstill occurs with a
change of spindle speed during a constant positioning procedure.

3.4.1 Output of M-functions
M-functions operative at block-beginning.
Timing diagram:
Start
\
. Static output: a) M-code, 8 bit BCD parallel
L b) decoded M-functions
B
M-Strobe
I
-1 I
I I
MP120
MP 121
4 + wait for feedback
MP 122 “Auxiliary function completed”
Please note:
The programmed time in machine parameter 121 must be less than the time in machine parameter 122.
The M-code is provided as a static signal. The impulse duration of the M-gating signal is programmed with
machine parameters 120 and 121. After duration of the time period programmed with 122, the control input
ist interrogated for the feedback signal: “Auxiliary function completed”. When -this input is at + 24 V, the
M-code signals are inactive and program run is resumed. If this input is inactive, (at 0 V), the M-code signals
are output and program run is interrupted until the input is re-activated (at 24 V).
.
The number of M-functions depends on the type of decoding in the machine interface.
With external decoding, 100 different M-functions can be programmed.
Without external decoding, 9 different M-functions can be programmed.
a) Coded M-functions
Output is in 8-4-2-l BCD-code, 2 decades parallel. (Decoded M-functions are present with the corresponding
coded M-functions simultaneously). The table on next page shows which M-functions are operative at the be-
ginning or end of a block, and the appropriate coding.
13

Coding of M-functions
M-Function
M 00
M 01 1000 oooc
M 02
M 03
M 04
M 05
M 06
M 07
M 08
M 09
M 10
M 11
M 12
M 13
M 14
M 15 1010 IOOC
M 16 0110 1000
M 17 1110 1000
M 18
M19""
M 20
M 21
M 22 X 0100 0100
M 23 X 1100 0100
M 24 X 0010 0100
M 25 X 1010 0100
M26 X 0110 0100
M27 X 1110 0100
M 28 X 0001 0100
M 29 X 1001 0100
M 30 X
0000 1100
M 31 X 1000 1100
M 32 X 0100 1100
M 33 X 1100 1100
M 34 X 0010 1100
M 35 X 1010 1100
M 36 X 0110 1100
M 37 X 1110 1100
M 38 X 0001 1100
M 39 X 1001 1100
M40 X 0000 0010
M 41 X 1000 0010
M42 X 0100 0010
Special M-Functions which affect program
run are in thick print.
M 64
M 65
M 66
M 67
M 68
M 69
M 70
M 71
M 72
M73
M 74
M75
M 76
M 77
M 78
M 79
M 80
M 81
M82
M 83
M 84
M85
M 86
M 87
M 88
M 89”
M 90
M 91
M 92
M93
M 94
M 95
M 96
M 97
M 98
M 99
Output at
Block
Beginnig End
X
X
1X
X
X
X
X
b
X X
X
X
IX
OX
1 = Contact closed
0 = Contact open
Connector J 2
bit 1234 5678
0000 1010
1000 1010
0100 1010
1100 1010
0010 1010
1010 1010
0110 1010
1110 1010
0001 1010
1001 1010
0000 0110
1000 0110
0100 0110
1100 0110
0010 0110
1010 0110
0110 0110
1110 0110
0001 0110
1001 0110
0000 1110
1000 1110
0100 1110
1100 1110
0010 1110
1010 1110
0110 1110
1110 1110
0001 1110
1001 1110
0000 0001
1000 0001
0100 0001
1100 0001
0010 0001
1010 0001
0110 0001
1110 0001
0001 0001
1001 0001
0000 1001
1000 1001
0100 1001
1100 1001
0010 1001
1010 1001
0110 1001
1110 1001
0001 1001
1001 1001
"Dependsonthe programming of parameter214
**Depends on the programming of parameter 158
14

b) Decoded M-functions
9 M-functions can be provided directly via relay contact thus making decoding in the machine interface
unnecessary
(MM04 1 MO5 1 MO8 1 MO9 I* MlO, M20, M40, M80
*I M-functions which affect program run
M 00
M 02
M 03
M 04
M 05
M 06
M 08
M 09
M 13
M 14
M 19
M 30
M 89
M 90
M91
M 92
M 94
M 95
M 96
M 97
M 98
M 99
Caution!
The M-function M 93 may not be allocated!
HEIDENHAIN reserves the right to assign this M-function.
ICoded output after execution of appropriate block - interrupts pro!gram run.
,Additional decoded output: “Spindle stop” and “Coolant off”.
(Coded output after execution of appropriate block - interrupts proigram run and addresses
Iblock No. 1. Cancellation of status display if required (see MP 173).
Additional decoded output: “Spindle stop” and “Coolant off”.
“‘Spindle clockwise” at block beginning; simultaneous output coded and decoded.
“Spindle counter-clockwise” at block beginning; simultaneous output coded and decoded.
“Spindle stop” at block-end; simultaneous output coded and decoded.
“Tool change”, coded output after execution of appropriate block -- interrupts program run.
Additional decoded output: “Spindle stop”.
“Coolant on” at block-beginnig; simultaneous output coded and decoded.
“Coolant off” at block-end; simultaneous output coded and decoded.
Coded output at block beginning.
Additional decoded output: “Spindle clockwise” and “Coolant on”.
Coded output at block beginning.
Additional decoded output: “Spindle counter-clockwise” and “Coolant on”.
For spindle orientation option, as of PLC-standard program 234 601 03
Functions as per M 02.
No output!
Effective at the end of the appropriate block as a modal cycle call if machine parameter MP 214
vvasentered with 2 or 3 (with MP 2’14 0 or 1: normal output of M89 at block beginning).
rd0 output!
[‘or constant speed at corners. Only active in trailing operation (Rough positioning).
rd0 output!
Approach to tool change position with reference to reference point.
No output!
Approach to tool change position (programmable in MP 186 - 189, with reference to reference
point)
rd0 0utp-d
Angle value reduction c 360’ at block beginning
rd00uq.d
Alteration of run-on behaviour at contour.
rd0 0utptd
I
see operating manual
Alteration of run-on behaviour at contour.
rd0 0utpt.a!
No transitional arc is inserted on external corners.
rd0 output!
Terminates path correction at block end.
rd0 output!
EFffective at end of appropriate block as per cycle call-block “CYCL CALL”.
15

3.4.2 Output of S- and T-functions within Tool Call-block
The output of S- and/or T-functions with the gating signals can be either inhibited through relevant machine
parameters in the initial dialogue or programmed for output of an S-Analogue voltage with up to 8 gear ratios.
Timing diagram
Start
J
T-Code, static ~
-r
I ,
S-Code, static
8 bit parallel BCD - 8 bit parallel BCD 1
h/lPI 20 T-Strobe
I----
I- 1 /
I
/ I
I I
I- MP 121 MP120
-I-
- S-Strobe ’ /
I MP 121 -
I- MP 122 MP 122 1 :
* 4
Please note:
The programmed time in machine parameter 121 must be less than the time in machine parameter 122.
16

3.4.2.1 Output of T-functions (tool numbers and tool store numbers)
The T-Code is provided as a static signal. The impulse duration of the T-gating signal is determined by
machine parameters 120 and 121 (compare 3.4.1 Output of M--functions). After duration of the time period
programmed with 122, the control input is interrogated for the feedback signal: “Auxiliary function completed”.
When this input is at + 24 V the T-code signals are cut-out and the program resLlmed. If the input is inactive
(at 0 V) the T-signals are output and program run is interrupted until the input is re-activated (at + 24 V).
The TNC 1tSl/TNC 155 permits programming of tool numbers from 1 to 254. The tool numbers 1 - 99 in
8-4-2-BCD-code are only output in the programmed tool call blocks; for tool numbers and tool store numbers
greater than 99, all 8 output relays pick-up. In addition to the tool number, the tool call block contains the
data for the spindle speed S.
17

3.422 Output of S-functions (Spindle speeds)
Depending on how machine parameter 62 is programmed, the output of spindle speeds can be in S-Code or via
an analogue voltage output with up to 8 programmable gear ratios.
a) Coded output of S-functions (Spindle speeds)
The S-Code is provided as a static signal. The impulse duration of the S-gating signal is determined by
parameters 120 and 121 (compare 3.4.1 Output of M-functions). After duration of the time period programmed
with 122, the control input is interrogated for the feedback signal: “Auxiliary function completed”. When this
input is at + 24 V the S-signal is cut-out and the program is resumed. If the input is inactive (at 0 V), the S-
signals are provided and the program run is interrupted until the input is re-activated (at + 24 V).
Spindle speeds are entered into the TOOL CALL program blocks with max. 4 digits in r.p.m. and automatically
rounded-off to the nearest standard speed by the control. The entered spindle speed is automatically coded by
the control in S-Codes in accordance with German standard DIN 66025 page 3, in 100 steps - as listed on
next page (Output is in 2-decade BCD-code).
With the machine parameter 63 “RPM-Code”, the minimum and maximum permissible speed can be entered.
The RPM-steps can be set within the permissible RPM-range.
The code is entered as a 5 digit number:
1 No. of 1
decades S-Code No.
min. RPM . . 2 01 -99
max. RPM .. 2 01 -99
Step __._........ 1 l- 9
Example:
The RPM-code “2 0 8 0 2” is entered,
i.e. the minimum spindle-RPM is therefore S 20 (1 RPM), the maximum spindle RPM is S 80 (1000 RPM), the
range is more closely defined by the specification that only every second speed is programmable.
18

Coding of S-functions
S-function
s 00
s 01
SO2
SO3
304
SO5
SO6
SO7
SO8
s 09
s 10
311
312
s 13
3 14
215
3 16
517
S18
S19
320
521
s22
523
S24
525
S 26
S27
S 28
s 29
s30
s 31
S32
s33
s34
s35
S36
s37
S38
s 39
s40
s 41
S42
s43
s44
s45
S46
s47
S48
s 49
RPM
0
0,112
0,125
0,14
0,16
0,18
02
0,224
0,25
0,28
0,315
0,355
0,4
0,45
0,5
0,56
0,63
0,71
03
03
1
I,12
I,25
I,4
I,6
I,8
2
2,24
25
23
3,15
3,55
4
4,5
5
5,6
63
7,l
8
9
10
11,2
12,5
14
16
18
20
22,4
25
28
Connector J 2
bit 1234 5678
0000 0000
1000 0000
0100 0000
1100 0000
0010 0000
1010 0000
0110 0000
1110 0000
0001 0000
1001 0000
0000 1000
1000 1000
0100 1000
1100 1000
0010 1000
1010 1000
0110 1000
1110 1000
0001 1000
1001 1000
0000 0100
1000 0100
0100 0100
1100 0100
0010 0100
1010 0100
0110 0100
1110 0100
0001 0100
1001 0100
0000 1100
1000 1100
0100 1100
1100 1100
0010 1100
1010 1100
0110 1100
1110 1100
0001 1100
1001 1100
0000 0010
1000 0010
0100 0010
1100 0010
0010 0010
1010 0010
0110 0010
1110 0010
0001 0010
1001 0010
S-function
s 50
SJ51
S 52
s 53
s 54
s 55
S 56
s 57
S 58
5 59
--
560
S 61
562
S63
S64
S65
S66
S67
S68
S 69
s70
571
S72
s73
s74
s75
S 76
s77
S78
s 79
S80
S 81
S82
S83
S84
S85
S86
S 87
S88
S 89
s 90
s91
s 92
s 93
s 94
s 95
S 96
s 97
S 98
s 99
RPM
- 31,5
35,5
40
45
50
56
63
71
80
90
-100
112
125
140
160
180
200
224
250
280
-315
355
400
450
500
560
630
710
800
900
-___-
II 000
1120
'1250
'1400
'I600
'I800
2000
2240
2500
2800
-- 3150
3550
4000
4500
5000
5600
6300
-7100
t3000
9000
Connector J 2
bit 1234 5678
3000 1010
1000 1010
3100 1010
1100 1010
3010 1010
1010 1010
3110 1010
1110 101Q
0001 1010
1001 1010
0000 0110
1000 0110
0100 0110
1100 0110
0010 0110
1010 0110
0110 0110
1110 0110
0001 0110
1001 0110
0000 1110
1000 1110
0100 1110
1100 1110
0010 1110
1010 1110
0110 1110
1110 1110
0001 1110
1001 1110
0000 0001
1000 0001
0100 0001
1100 0001
0010 0001
1010 0001
0110 0001
1110 0001
0001 0001
1001 0001
0000 1001
1000 1001
0100 1001
1100 1001
0010 1001
1010 1001
0110 1001
1110 1001
0001 1001
1001 1001
1 = Contact closed
0 = Contact open
19
j

b) Analogue voltage output of spindle speeds (0 to 99 999 rpm)
outputs PLC-Allocation TNC 151 B /
TNC 155 B
Multipoint
connector
TNC 151 Q /
TNC 155 Q
Multipoint
connector PLC-
Power board
TNC 151 Q/
TNC 155 Q
Multipoint
connector Control
Spindle analogue voltage
+ 10 volts - J4/9 - J1/9
0 volt - J4/10 - Jl/lO
Gear ratio 1 A7 J2/2 J1/8 -
2 A8 J2/3 Jll9 -
3 A9 J2/4 J1/9 -
4 A10 J2/5 Jl/ll -
5 All ~-
J2/6 J2ll -
6 Al2 J2/7 J2/2 -
7 Al3 J2/8 J2/3 -
8 Al4 J2/9 J2/4 -
S-Strobe A20 J3/3 J2/10 -
Auxiliary function
completed El7 J5/7 J5/6 -
Caution
The O-volt nominal value output must be grounded (see section 3.16 Wiring). For activation of the spindle with
DC-servodrive, the control provides a DC voltage of 0 to + 10 volts. The polarity of the output voltage is
determined by parameter MP172. With the aid of machine parameters 78 to 85, up to 8 gear ratios may be
defined. This shlould be commenced with the entry of the ratio with the lowest speed. The max. voltage at the
input of the servo-amplifier which is programmed with machine parameter 87. The S-gating signal is provided
with each gear ratio.
After output of MO3 or M04, the nominal value voltage with the ramp as programmed with machine para-
meter 168 are output prior to the feedback-signal “auxiliary function completed”. No nominal value
voltage output takes place with M05.
The nominal value voltage for the spindle drive during gear change is determined with MP70. For the duration
of gear change, t:he polarity of this voltage MP70 is switched over in accordance with parameters 124 and 125.
The control is fitted with an S-Override potentiometer. The min. and max. voltage values can be programmed
with machine parameters (Nos. 86 to 89 and 184).
3.5 Emergency Stop
In/Output PLC-Allocation TNC 151 B/TNC 155 B TNC: 151 Q/TNC 155 Q
Multipoint connector Multipoint connector
PLC-Power board
Emergency Stop (Output) -
Emergency stop-test (Input) E8 Jll8 J3/10 J5/8 J4/4.
Important functions of the TNC 151/TNC 155 are under constant supervision through self-diagnostics
(electronic subassemblies such as microprocessors, the memory read/write-store, positioning systems,
transducers etc.). If a fault is detected, it is indicated as a flashing display in the plain language dialogue.
On output of fault-indication, the “emergency stop” contact opens.
The “Emergency Stop” condition of TNC 151/TNC 155 can only be cancelled by switching off the mains
voltage, provided that the fault has been rectified. A special mains switch may be necessary for the control
only!
20