Module level status. Schneider Electric Software PLC Application-Specific Functions, Electronic cam module, Junior/Pro, 4.5, PL7 Junior/Pro - Premium PLCs Electronic cam module TSXCCY1128 - Application implementation

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Diagnostics

Module level status

Module status objects

Method

These objects are common to all the modules in the range.

Object

%Ixy.MOD.ERR

%MWxy.MOD.2

Symbol

MOD_FAULT

FAULTY_MOD

FAULTY_CH

MOD_CNF_FLT

MISSING_MOD

Meaning module fault bit x0 = 1 internal fault: module failure x1 = 1 channel functional fault (see channel status) x2 to x4 reserved x5 = 1 configuration fault: difference between the value configured and that read x6 = 1 module missing or switched off x7 = reserved

They give information about the module status.

Value %MWxy.MOD.1 is updated again by an explicit command:

READ_STS %CH xy .MOD

If %Ixy.Mod.Err = 1 (default), perform the READ_STS command.

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Diagnostics

Status of channel level

Aperiodic status This data allows module diagnostics. Faults may be internal or external to the module.

Object

%Ixy.0.ERR

%MWxy.0.0

%MWxy.0.1

%MWxy.0.2

Symbol

Track_FAULT

EX_STS

STS_IN_PROG

ADJ_IN_PROG

RECNF_IN_PROG

EX_RPT

ADJUST_ERR

RECONF_ERR

CH_STS

ENC_FLT

AUXIL_FLT

TRACK_FLT

INTERNAL_FLT

CONF_FLT

COMMUNIC_FLT

APPLI_FLT

CH_LED

ENC_SUPPLY_FLT

ENC_WIRE_FLT

ENC_TRANSMIT_FLT

AUX_SUPPLY_FLT

C0_SUPPLY_FLT

C1_SUPPLY_FLT

Meaning group 0 fault bit exchange status management x0 = 1 channel status reading in progress x1 reserved x2 = 1 function: WRITE_PARAM, MOD_PARAM, MOD_TRACK,

MOD_CAM, TRF_RECEIPT in progress.

x3 to x14 reserved x15 = 1 reconfiguration in progress exchange report status x0 to x1 reserved x2 = 1 error on a communication function: WRITE_PARAM,

MOD_PARAM, MOD_TRACK, MOD_CAM, TRANF_RECEIPT.

x3 to x14 reserved x15 = 1 reconfiguration fault channel status x0 = 1 external fault: encoder supply fault x1 = 1 external fault: auxiliary inputs supply fault x2 reserved x3 = 1 external fault: tracks outputs fault x4 = 1 internal fault: internal module fault or module self-tests running x5 = 1 module hardware configuration fault or software configuration different to that expected x6 = 1 communication fault x7 = 1 error on a piece of data in recipe x8 and x9 state of the LED channel x10 = 1 encoder supply fault x11 = 1 encoder line fault x12 = 1 SSI Frame transmission fault (parity or format) x13 = 1 auxiliary inputs supply fault x14 = 1 connector 0 supply fault x15 = 1 connector 1 supply fault

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Diagnostics

Object

%MWxy.0.3

%MWxy.0.4

%MWxy.0.5

%MWxy.0.6

%MWxy.0.7

%MWxy.0.8

%MWxy.0.11

Symbol

EXTEN0_FLT

COD_PARAM_FLT

COD_DESC_FLT

Meaning channel status (specific) x0 to x5 error code for axis configuration or adjustment fault.

x6 to x11 error code for track or cam description fault x12 = 1 fault delivered by the SSI encoder x13 to x15 reserved

ENC_ALARM

EXTEN1_FLT

NUM_DESC_FLT

NUM_GROUP_FLT

COD_LOCAL_FLT channel status (specific) x0 to x4 order number of the faulty track or cam x5 to x6 group number of the faulty track or cam x7 to x8 reserved x9 to x15 error code for transfer of recipe data:

16#01 = the address specified does not exist

16#02 = the group specified does not exist

16#03 = the track specified does not exist

16#04 = the cam specified does not exist

16#05 = the action code specified does not exist

16#06 = the type of object does not exist reserved

C0_SHORT_CIRCUIT short-circuit fault on connector 0

16#0000 no fault

16#0001 short-circuit on group 0 tracks

16#0100 short-circuit on group 1 tracks

16#0101 short-circuit on group 0 and group 1 tracks

C1_SHORT_CIRCUIT short-circuit fault on connector 1

16#0000 no fault

16#0001 short-circuit on group 2 tracks

16#0100 short-circuit on group 3 tracks

16#0101 short-circuit on group 2 and group 3 tracks reserved

Method

The value of the %MW objects is updated by the READ_STS %CHxy.0 command.

If %Ixy.Mod.Err = 1 (default), perform the READ_STS command.

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Diagnostics

Error codes

Error codes In the channel periodic status word %MWxy.0.3, bits x0 à x5 are used to code the configuration or adjustment errors for the axis, and bits x6 à x11 code the description errors for a track or a cam. A symbol is associated with each error code.

COD_PARAM_FLT: error code for axis configuration or adjustment error

Code Faulty parameters

0 No error

EVT_ENABLE is not 0,1,or 255

EVT_NUM is not between 0 and 63

INPUT_MOD is not 0 (inc) or 1 (abs)

Reserved field is not at 0

FORMAT_MEAS is not 0,1 or 2

PRESET_MOD is not 0,1,2, or 3

CAPTS_MOD is not 0,1,2, or 4

Conf: Reserved field is not at 0

WITH_ERR is not zero - in incremental encoder

ABS_ENC_ERROR_RANGE is not zero - in incremental encoder

ABS_ENC_READ_PERIOD is not zero - in incremental encoder

CAPTS_MOD is not zero - in absolute encoder

ABS_ENC_READ_RANGE is greater than or equal to the number of status bits

ABS_ENC_READ_RANGE is at 0

ABS_ENC_READ_PERIOD is not 0,1 or 2 - in absolute encoder

ABS_ENC_READ_PERIOD - 50 micro – incompatible with frame length

ABS_ENC_READ_PERIOD incompatible with frame length

ABS_ENC_READ_EXTRA_NB - number of header bits is too big (0.4 allowed)

ABS_ENC_READ_EXTRA_NB - number of status bits is too big (0.3 allowed)

ABS_ENC_EXTRA_NB is at 0 – incompatible with WITH_ERR

ABS_ENC_DATA_NB - number of data bits is greater than 25

ABS_ENC_DATA_NB + ABS_ENC_READ_EXTRA_NB + WITH_PAR is greater than 32

PRESET_ANG_VALUE is greater than RESOL_ANG

PRESET_TURN_VALUE is greater than RESOL_TURN

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Diagnostics

Code Faulty parameters

SLACK_VALUE less than -1023

SLACK_VALUE greater than 1023

SLACK_VALUE greater than (RESOL_ANGL * RESOL_TURN)

SLACK_VALUE greater than RESOL_ANG/2

ABS_REDUC is at 0

ABS_REDUC is not 1,2,4,8,16 or 32

(ABS_REDUC*RESOL_ANGL*RESOL_TURN) greater than

ABS_ENC_DATA_NB

ABS_OFFSET_ANG greater than RESOL_ANGL

ABS_OFFSET_TURN greater than RESOL_TURN

RESOL_ANGL is not a power of 2 - in absolute encoder

Param: Reserved field is not at 0

PRESET_ANG_VALUE(adjustment) is greater than RES_ANG

PRESET_TURN_VALUE (adjustment) is greater than RES_TURN

SLACK_VALUE (adjustment) less than -1023

SLACK_VALUE (adjustment) greater than 1023

SLACK_VALUE (adjustment) greater than (RESOL_ANGL * RESOL_TURN)

SLACK_VALUE (adjustment) greater than RESOL_ANG/2

ABS_ENC_DATA_NB less than 8

RESOL_ANGL less than 256

INPUT_MOD (encoder) incompatible with FORMAT_MEAS

MAX_PIECES is less than 1

MAX_PIECES is greater than 32767

MAX_PIECES (adjustment ) is less than 1

MAX_PIECES (adjusted ) is greater than 32767

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List of track or cam error codes

COD_DESC_FLT: error code for track or cam description fault

Code Faulty parameters

0 No error

TYP_PROFIL unknown cam code

Cam: Reserved field is not at 0

TRACK_NUM is greater than 7

COND_ENABLE is not at 0,1,2

BIT_NUM_ENABLE impossible

Cam: Reserved field is not at 0

X1 is greater than RESOL_ANG

X2 is greater than RESOL_ANG

TIME_SWICH_OFF is not at 0

X2 is not at 0

TIME_SWITCH_OFF is greater than 16383

Cam: Reserved field is not at 0

Track: Reserved field is not at 0

ADD_TRACK on track 4 to 7

ANTICIP_FACTOR greater than 32767

ANTICIP_FACTOR is not at 0 – logical track

USED_CAM (adjustment) the cam has not been declared

X1(adjustment) is more than RESOL_ANG

X2 (adjustment) is greater than RESOL_ANG

TIME_SWITCH_OFF(adjustment) is not at 0

X2 (adjustment) is not at 0

TIME_SWITCH_OFF (adjustment) is greater than 16383

USED_TRACK (adjustment) the track has not been declared

ANTICIP_FACTOR (adjustment) greater than 32767

60 ANTICIP_FACTOR (adjustment) is not at 0 – logical track

Code Faulty parameters

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Diagnostics

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Diagnostics

Controls

General

Display on module front panel l l l l l l l

The system checks that a module really is in good working order and is capable of performing the designated function.

The module tests its main components.

Checks correct operation of the internal self-tests performed on cold or warm restart of the internal software.

Checks communication between the cams module and the processing unit.

Checks supply and connection of the encoder.

Checks auxiliary inputs supply.

Checks track outputs.

The display on the module front panel shows the module operating status. The information is laid out in the following arrangement:

CH0 RUN ERR

I/O

On power-up, if CH0 and RUN light up green, the module has not detected any errors and is ready to operate.

The CH0 light is lit (green)

The RUN light is lit (green)

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Diagnostics

Checking the integrity of the module

Internal error Example

The ERR light is lit (red)

When the bit %Ixy.MOD.ERR = 1, the READ_STS %CHxy.MOD instruction is used to refresh the status, and you will find: FAULTY_MOD = 1

The outputs are guaranteed at 0V.

Communication error towards the module

For example, due to a break in the X bus linking the extension rack in which the module is located.

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The ERR light flashes (red)

The RUN light is lit (green)

The CH0 light flashes (green)

When the bit %Ixy.MOD.ERR = 1, the READ_STS %CHxy.MOD instruction is used to refresh the status, and you will find: FAULTY_MOD = 1

When the bit %Ixy.MOD.ERR = 1, the READ_STS %CHxy.MOD instruction is used to refresh the status, and you will find: COMMUNIC_FLT = 1 or INTERNAL_FLT =1.

The status of the outputs depends on the configuration selected (cam processor configuration).

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Diagnostics

Monitoring the encoder

At a Glance Conitinous monitoring of the configured encoder is performed.

Monitoring the supply to the encoder: the real voltage applied to the encoder is measured.

Line monitoring: if requested during configuration, line breaks and short-circuits are detected by measuring the differential voltage on the encoder connection lines.

Monitoring transmission: two checks are made on the SSI link with the encoder.

A parity check if requested during configuration. An answer present check.

Encoder alarm: some SSI encoders bring up error data in the serial link frame. The module transmits the data, if requested during configuration, to the application software.

Signaling:

The ERR light (red) is off

The RUN light (green) stays lit

The CH0 light (green) flashes

The I/O light (red) is on

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Consequences of an encoder fault

Diagnostics

If the encoder power supply voltage is too low, if there is a line fault or if a transmission fault is detected: l Position reading is no longer ensured: data ANG_OK = 0 l The cam processor is switched to STOP mode: data PCAM_ON = 0

For an ALARM_CODEUR error, the module proceeds with processing as normal, the processor remains in RUN mode.

Bit %Ixy.MOD.ERR = 1. The READ_STS %CHxy.MOD instruction is used to refresh the status, and you will find: l FAULTY_CH =1

Bit %Ixy.0.ERR = 1. The READ_STS %CHxy.0 instruction is used to refresh the status, and you will find: l l l l

ENC_FLT = 1 and

ENC_ALARM = 1 if data is detected in the SSI frame

ENC_TRANSMIT_FLT = 1 if an SSI frame error is detected

ENC_WIRE_FLT = 1 if a line fault is detected l Enc_Supply_Flt = 1 if the encoder is incorrectly supplied

If encoder supply fault masking has been configured (supply ENC_MSK = 1) then

%IWxy.MOD.ERR, %IWxy.0.ERR and ENC_FLT will not change to 1 on an encoder supply fault.

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Diagnostics

Checking auxiliary inputs

At a Glance

Consequences of the supply fault

Auxiliary inputs supply fault

The 24 V voltage on the auxiliary I/O connector is monitored. A fault occurs if the voltage is less than 19V.

If the 24V power supply is too low (<19V): l l

Position reading is no longer ensured: data ANG_OK = 0

The cam processor is switched to STOP mode: data PCAM_ON = 0

Signaling: l l l l

The ERR light (red) is off

The RUN light (green) is on

The CH0 light (green) lashes

The I/O light (red) is on

Bit %Ixy.MOD.ERR = 1. The READ_STS %CHxy.MOD instruction is used to refresh the status, and you will find: l FAULTY_CH =1

Bit %Ixy.0.ERR = 1. The READ_STS %CHxy.0 instruction is used to refresh the status, and you will find: l AUX_FLT = 1 and l AUX_SUPPLY = 1 if the encoder is incorrectly supplied

If auxiliary inputs supply fault masking has been configured (SUPPLY_AUX_MSK) then: %IWxy.MOD.ERR, %IWxy.0.ERR and AUX_FLT will not be switched to 1 on an encoder supply fault.

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Diagnostics

Monitoring track outputs

At a Glance

Consequences of the fault

The 24V voltage is monitored on each of the track output connectors. A fault occurs if the voltage is less than 19V. The check is only made if the connector is unlocked.

Each output has a current limiting system (from 0.7 to 2 A). In the event of prolonged overcurrent, thermal tripping occurs.

For a supply fault to one of the connectors, the cam processor is set to STOP mode.

For a short-circuit fault on one of the track outputs, all the connector outputs are set to 0V.

Depending on the selected configuration of the "cam processor": l If the processor ignores short-circuit faults (CP_IGN_SC= 1) then the processor remains in RUN mode.

l Otherwise the processor is set to STOP mode.

If automatic reset is required (REARM_MOD =1), resetting of the faulty connector is automatic after 10s or else the fault must be acknowledged by the command

C0_REARM or C1_REARM according to the connector.

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Diagnostics

Track output faults

Signaling: l l l l

The ERR light (red) is off.

The RUN light (green) is on.

The CH0 light (green) flashes.

The I/O light (red) is on.

Bit %Ixy.MOD.ERR = 1. The READ_STS %CHxy.MOD instruction is used to refresh the status, and you will find: l FAULTY_CH =1

Bit %Ixy.0.ERR = 1. The READ_STS %CHxy.0 instruction is used to refresh the status, and you will find: l l l l l l l

TRACK_FLT = 1 and

C0_SUPPLY_FLT = 1 if connector 0 is incorrectly supplied

C1_SUPPLY_FLT = 1 if connector 1 is incorrectly supplied

C0_SHORT_CIRCUIT = 1 if an output in group 0 has short-circuited

= 256 if an output in group 1 has short-circuited

C0_SHORT_CIRCUIT = 1 if an output in group 0 has short-circuited

= 256 if an output in group 1 has short-circuited

If track output supply fault masking has been configured (SUPPLY_TRACK_MSK =

1) then %IWxy.MOD.ERR, %IWxy.0.ERR and TRACK_FLT will not change to 1 on a connector supply fault.

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Diagnostics

Questions and Answers

List Table of malfunctions

Malfunction

The cam processor does not switch to RUN mode

The cam processor changes to stop mode without modifying bit

%Qxy.0.5

(PCAM_START_STOP)

No action on the outputs

Loss of modifications to the current recipe

Following modification to the configuration, the browser turns red and it is not possible to confirm the configuration l l l

Possible causes l The module has not been recalibrated (bit

%Ixy.0.0.i=0).

There is no encoder supply

Lack of auxiliary input supply

CAUTION: If the faults have been masked, a fault can prevent the switch to RUN mode without appearing!

l l l l

Loading a recipe using the commands l l l

WRITE_PARAM

RESTORE_PARAM

TRF_RECIPE

The outputs are already valid OUTS_ENABLE

Parallelization of a track without configured cam

Forced outputs

Inverted outputs

When switching to local mode, if the save has not been done when adjusting the recipe

A parameter is no longer compatible with the new configuration l l l l

Switch to recipe adjustment

Click on No when requested to confirm

Modify the parameter

Confirm

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Diagnostics

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Glossary

A

Absolute encoder

Acquisition

Adjusting the

Recipe

Alternating movement

Angle reading

Anticipation

Axis

This type of encoder directly delivers the numeric value of the axis position. The position reading is kept in case of power outage.

Module functions that are used to calculate the position reading of the machine.

Adjusting the recipe is a PL7 facility that allows modification of the parameters of a recipe element (axis, cam or track) in connected mode. Modifications done under recipe adjustment do not stop the cam processor.

This is a typical movement for hydraulic presses and transfer machines. The axis describes a to and fro movement in a pulses domain equal to or less than the value of the cycle.

The "reading format" is type 1. The arrival of parts is synchronized by the machine

(Machine Synchro).

This is the instant position value of the axis in the cycle. This value is expressed as a number of pulses.

Cam processor function that is used to compensate for the delay caused by the machine’s actuators.

The anticipation value is applied to all changes of track status. It is specified by the

"anticipation factor" defined in the recipe parameters (value between 0 and 32 767 x 50 micro seconds).

These are all the external elements that control the movements of the machine

(reducer, encoder…).

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Glossary

Axis play This is the position error caused by the axis according to the direction of movement.

The cam processor can compensate for this error. The value of axis play is supplied in a configuration parameter.

C

Cam

Cam descriptor

Cam processor

Cam program

Capture

Cold restart

Communication fault

Configuration

Logic state which switches to 1 when an angular value in the cycle is overshot and which resets to 0 according to the type of cam.

A cam is systematically associated to one and only one track. Several cams can be associated to one track.

Part of the cam program that characterizes a cam (number of associated track, thresholds, type, confirmation condition, etc.).

This is the part of the module that directly controls the outputs according to the angle reading and according to the cam program supplied with the module.

This is all the internal data that defines the activation of the outputs according to the position reading of the axis. The cam program represents the most important part of the recipe.

A module function that is used to sample the position value of the axis on detection of a precise event (input Icapt0 and/or Icapt1). The capture has no impact on the values of the axis nor on the cam processor.

The implementation of this function allows the application to manage the process better, for example: in monitoring the number of pulses sent by the encoder, the size of the parts, the axis slip, the angle of arrival of the parts.

The module is initialized with current configuration and adjustment parameters.

This happens after the PLC supply has been cut or the supply has been reset or the module has been disconnected.

The module will execute the recipe in operation before the Reset.

Fault detected by the module when periodic exchanges with the PLC processor are no longer made.

The configuration gathers together the data which characterizes the machine

(invariant) and which is necessary for the TSX CCY 1128 module to operate.

All this information is stored in the PLC %KW constants zone. The PLC application cannot modify them.

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Continuous movement

Cycle

Cyclical movement

Glossary

This is the movement typical of conveyor belts. Theoretically the cycle is infinite. In fact, the limit for this module is 32768 pulses. The axis must be recalibrated when each part arrives (Part Synchro).

The "reading format" is type 3.

Area in which the action of the outputs can be programmed.

Caution: A complete cycle of the machine (machine cycle) must be a whole number of cycles.

This is the typical movement for packaging machines. The axis describes several cycles to carry out all the operations on a part. The direction of movement is usually constant.

The "reading format" is type 2. The arrival of parts is synchronized by the machine

(Machine Synchro).

D

Debugging

Deviation angle

Debugging is a PL7 facility that allows direct monitoring of the module in connected mode.

This is the axis position reading, taken each time it passes machine zero. This function for measuring axis slip can be accessed via the capture function.

E

Encoder Position sensor accepted by the module It can be incremental, SSI absolute or parallel (via Telefast ABE 7CPA11).

F

Filtering Filtering allows better environmental handling (for difficult environments). It is a filter that limits the bandwidth of counting signals which come from an incremental encoder.

With filtering the permitted frequency (before multiplying by 4) is 125 KHz, as against

250 KHz without filtering.

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Glossary

G

Gray code A binary code known as reflected, in which the change from term n to term n+1 is carried out by changing only a single digit, and so the code can be read unambiguously.

I

Incremental encoder

Pulse generator with 2 signals offset by 90°. These are produced according to the movement of the axis and are counted by the module.

L

Line monitoring System of monitoring the connection lines with the encoder. It detects breaks and short circuits between signals in the cable.

M

Machine cycle All of the cycles necessary to effect a complete operation of the machine.

Machine synchro Synchronization is carried out on a physical reference of the machine called

"Machine zero".

In this case the mechanism must control the arrival of the parts in the cycle. Each part will have to arrive for the same angle value, but you will always be able to find several parts on the machine at the same time.

Machine zero This is the mechanical reference position of the machine.

Measurement format

Defines the format for the axis position reading calculated by the module. It depends on the type of machine.

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Glossary

O

Offset

Operating mode

Output fallback

This is the rough value delivered by an absolute encoder to the machine zero.

By completing the adjustment parameter "Offset encoder", it is possible to set the angle value of the axis to 0 on the machine zero position.

These are all the rules that govern the performance of the module during transitory phases or when an error appears.

This is the behavior of the outputs under different errors: l If an electrical fault is detected on a connector (short circuit or supply under l voltage).

l All faulty connector outputs switch to 0V.

l Direct commands continue to be applied on the outputs of the other connector.

The cam processor can be set to Stop (according to the configuration).

If communication between the module and the central unit is defective.

l l The cam processor can be set to Stop (according to the configuration) l Direct commands continue to be applied or not (according to the configuration)

If the cam processor is in Stop mode.

l l

The tracks are set to logical 0.

The outputs can no longer be conditioned except by direct commands and INV information set at configuration.

l If the module is not configured (RUN light is out), the outputs are at 0V.

P

Part synchro Synchronization is carried out when each part arrives.

In this case parts can arrive at random on the machine, but the tool box can only handle one part at a time.

Pulses per cycle This is the number of pulses delivered by the axis per cycle.

In relation to the encoder resolution, this adjustment parameter must be considered: l l after multiplying by 4 for an incremental encoder after reducing the resolution for an absolute encoder.

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Glossary

R

Reading inversion

Recalibration

Recipe

Reducing the resolution

Resetting

Resolution

Rotating movement

This function allows the module to adapt itself to the type of mechanical mounting of the encoder on the axis.

This is the module function which is used to adjust the axis in relation to the machine zero or to synchronize the axis in relation to the arrival of a part.

Recalibration forces the position reading to a value which is predefined by the

"recalibration value" parameter (included in the pulse field of the cycle).

The module allows recalibration to be carried out systematically for each cycle or for only one cycle. This recalibration is always conditioned to the IREC input.

The recipe groups together the data required for the module to control the machine for a series of parts. The recipe can be modified or completely changed by the PLC application. All this information is contained in the PLC %MW words in the memory zone reserved for the module.

This function is used to divide the position value delivered by an absolute encoder via the "resolution reduction factor" by 2, 4, 8, 16 or 32.

Module function that allows a return to normal for the outputs after the outputs have been tripped.

The reset mode can be configured as "Manual" or "Automatic": l In "Manual", resetting is conditioned by a command bit controlled by the application.

l In "Automatic", resetting is carried out 10 seconds after the trip.

this is the smallest variation of input information which gives a measurable piece of output information.

This is a typical movement for mechanical presses and punching machines. The axis describes a complete cycle to carry out all the operations on a part. The direction of rotation is constant.

The "reading format" is type 1. The arrival of parts is synchronized by the machine

(Machine Synchro).

S

Short circuit fault The module includes a thermal circuit break system for the module's 24 V outputs.

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Slipping

SSI encoder

Synchro

Glossary

This system shows up a "short circuit fault".

Before a break, the short circuit current is limited to 1.5 A. The 24 V supply must be able to cope with this overload without a drop in voltage so that the rest of the application is not disrupted if there is an output fault.

This is the error of pulse loss in a cycle. This can be caused by the mechanical transmission of the axis. The module allows measurement of this slip (see:

"deviation angle").

Synchronous Series Interface link This is the standard connection protocol for absolute encoders that is used by the module.

l l

The transmission frequency is set by the module according to the following configuration parameters:

Number of bits making up the frame,

Reading period (50, 100 or 200 micro seconds).

"Part synchro", "Machine synchro": these are the two main modes of synchronization of the axis (which brings the parts in) in relation to the tool box. One or other of them is used according to the type of application.

Synchronization is necessary with an incremental encoder.

T

Top dead center With mechanical presses, you find a zone in the cycle which is called TDC. It is in this zone that the machine can and must be stopped. The "brake" cam is specially designed to deal with this problem.

Track This is the logic state which can be applied to the physical output. The maximum number of tracks is 32.

Track descriptor Part of the cam program that sets the parameters for the functions associated with a track (anticipation factor, generation of an event, evolution of the parts counter).

Turn pulse marker

Type of cam

Type of movement

A pulse supplied by a rotary incremental encoder, detected on each complete turn of the axis.

Essential feature of a cam. Defines the type of cam calculation according to the angle value (position, monostable or brake command).

This is the feature of the machine that sets the speed cycles on the axis.

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Glossary

W

Warm restart The module is initialized with the initial configuration and adjustment parameters.

This happens after a Reset of the CPU.

The module executes the initial recipe. Modifications done in connected mode, are not recognized if a "Save parameters" has not been carried out before the Reset.

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