Heidenhain TNC CNC Controllers

This error indicates that the brake-test call monitoring was canceled. This typically happens if protective doors are opened during the brake test, or if the drive-ready signal is not present during the monitoring period.

This error indicates the cancellation of the brake-line-test call monitoring. The most common cause is that guard doors were open during the brake control test or brake line test, compromising safety.

This error indicates that the Safety PLC (SPLC) commissioning mode is still active. This happens when the CRC check of the SPLC program is deactivated (machine parameter CfgSafety --> commissioning is set), which is typically done during machine setup but must be deactivated before machine delivery for safe operation.

This error signifies a short circuit on the +24 V line of the T.BRK.B signal, detected during a braking control test. Specifically, a +24 V signal level is present at the -T.BRK.B input of the SPL module when 0 V is expected, indicating an issue with the brake control circuit.

This warning indicates that the control unit (CC, UEC, UMC) is not suitable for control systems requiring functional safety (FS), as detected during a check of the safety kernel software SKERN-CC. The currently installed controller unit fulfills safety requirements according to EN 13849 but is not approved for functional safety applications.

This error indicates a failure in the cross-comparison of SPLC-CC outputs. It occurs when the Safety PLC (SPLC) program of the CC[x] defines an output as 0 (LOW), but the value read from the terminal for that output is 1 (HIGH), suggesting a discrepancy between commanded and actual output states.

This error indicates a short circuit on the +24 V line of the T.BRK.B signal, detected during a braking control test. Specifically, a +24 V signal level is present at the -T.BRK.B input of the SPL module when 0 V is expected, suggesting an issue with the brake control circuit.

This error indicates the cancellation of a brake line test. The primary cause is that one or more guard doors were detected as open during either the brake control test or the brake line test, which is a safety interlock violation.

This error indicates that the current combination of operating mode switches and protective door statuses is not permissible for the CC%2 controller. This can result from incorrect switch settings, open safety doors, or faulty wiring.

This error indicates that Safety Operating Mode (SOM) 4 is not possible for the CC%2 controller. The common causes include Keylock Switch 1 not being in automatic mode (BA1), a defective Keylock Switch 1, or a wiring error.

This error signifies that although operating mode BA4 has been selected via the key switch, it has not been properly released. This prevents the machine from entering or operating in this specific mode.

This error indicates that in operating mode BA2, with open safety doors, the simultaneous movement of more than one axis is not allowed. The controller has detected an attempt to move multiple axes under these restricted conditions.

This error indicates a discrepancy between the operating conditions of the MC (Machine Control) and CC (Controller) modules. Specifically, the automatic, SRG (Reduced Speed), SBH (Standstill Monitoring), and SH (Safe Hold) operating conditions are cyclically compared, and if they remain unequal for longer than 500 ms, a Stop 1 safety reaction is triggered.

This error signifies a discrepancy in input or output data of the safety core software during a cross-comparison between the MC (Machine Control) and CC (Controller). This can affect various safety-related functions, including axis group states, motion requests, axis movement releases, machine control voltage, drive enable permissions, machine key statuses, brake-line test signals, safety-related mode of operation (SOM), read-back outputs, SPLC program activity, and stop requests. It also indicates issues with ascertained safety status of the axis group, axis-dependent braking control, motion status, or operating readiness for functional safety.

This error indicates that the maximum permissible time for a controlled stop (SS2 – braking on the contour) for a specific axis group (ObjId) was exceeded. The maximum allowed time for this stop reaction is 30 seconds, implying the braking process took too long or failed to complete within this safety limit.

A communication error occurred during the forced dynamic sampling of the EnDat encoder (X%4). This specific error indicates that both ignore flags were set at the same time, which is an invalid state during dynamic sampling.

This error indicates that the dynamic sampling of the EnDat22 encoder (X%4) could not be performed within the prescribed time limit. This is a communication timeout issue, suggesting problems with the encoder, its wiring, or the controller's ability to communicate with it.

This error occurs when an active ignore bit is detected outside of an EnDat forced dynamic sampling operation. This indicates an invalid state in the EnDat communication protocol or an unexpected condition related to encoder sampling, potentially affecting safety functions.

This error indicates that a drive (or multiple drives) has been locked by the safety software of the CC (Controller) module. This occurs when an emergency stop is active (due to -ES.B or -NE2 signal) and an attempt is made to switch on a drive, or due to an internal software error.

This error indicates that a drive (or multiple drives) has been locked by the safety software of the MC (Machine Control) module. This occurs when an emergency stop is active (due to -ES.A or -NE1 signal) and an attempt is made to switch on a drive, or due to an internal software error.

This error indicates that a drive has been locked by the safety software because a system test is active. An attempt was made to switch on a drive while the system was still executing a test program, or due to an internal software error.

This error indicates that a drive is locked due to functional safety (FS) because a Stop 1 switch-off reaction is active for the CC module. An attempt was made to switch on a drive while the CC had not yet completed a running Stop 1 switch-off, or due to an internal software error.

This error indicates that a spindle drive was locked. This occurs when an attempt was made to switch on a spindle drive while the guard door was open AND the tool holder was also open, or due to an internal software error.

This error indicates that a spindle drive was locked. This occurs when an attempt was made to switch on a spindle drive while the guard door was open, and the permissive button was either not pressed or was not released beforehand, or due to an internal software error.

This error indicates that a spindle drive was locked. This occurs when an attempt was on a spindle drive while the guard door was open, and the keylock switch was in the 'BA1' position ('unqualified operator'), or due to an internal software error.

This error indicates that a spindle drive was locked. This occurs when an attempt was made to switch on a spindle drive while the guard door was open, AND a Stop 2 (SS2) reaction was active for the spindle, or due to an internal software error.

This error indicates that the maximum permissible velocity in the SRG (Safe Reduced Speed) operating mode was exceeded for the CC controller. This typically occurs when a feed rate or shaft speed is too high while in SRG mode, often with safety doors open, or due to incorrect parameter settings.

This error indicates that the maximum permissible velocity for Safe Reduced Speed (SRG) is 0, which means no movement is allowed. This can be caused by parameters, incorrect keylock switch settings, a circuit error or disturbance at input I19 of the operator safety module, or an internal software error.

This error indicates that the maximal permissible velocity of the standstill monitoring (SBH - Safe Brake Hold or Safe Operating Stop) was exceeded. This means the system detected motion when it should have been at a standstill or within a very low-speed threshold.

This error indicates that standstill monitoring (SBH) was set to 0. This typically means the parameter defining the maximum permissible velocity for standstill monitoring is configured as zero, essentially disabling monitoring or causing an unexpected error, possibly due to an internal software issue or incorrect transmission settings.

This error indicates a discrepancy between the signal level of the test output 'T2' and the 'Emergency Stop' input of the CC controller. Specifically, for CC424, this refers to the '-NE2' signal, and for CC61xx, the '-ES.B' signal. This suggests a wiring error in the emergency stop circuit or a fault in the safety module.

This error indicates that PLC module 9169 has been detected in safety-oriented software as illegal, implying a software error. This module is likely not permitted or improperly configured within the safety context of the system.

This error indicates that the measured status of the '-SH1' signal is 'high' level, but it is expected to change to 'active' ('low' level) as the MC (Machine Control) is no longer triggering the corresponding watchdog. This points to an internal software error or a hardware defect preventing the '-SH1' signal from transitioning correctly.

This error indicates that the measured status of the '-SH1' signal is 'low' level, but it is expected to change to 'inactive' ('high' level) as the MC (Machine Control) IS triggering the corresponding watchdog. This points to an internal software error or a hardware defect preventing the '-SH1' signal from transitioning correctly.

This error signifies a problem during the dynamic test of the second emergency-stop loop in the Heidenhain TNC CNC Controller. During this safety test, a 0V signal is expected at input NE2 within 1.5 minutes. If a 24V signal remains present, it indicates a failure in the emergency-stop circuit, compromising the machine's safety function.

This error occurs during the dynamic test of the second emergency-stop loop in the Heidenhain TNC CNC Controller, specifically related to door contacts and key-operated switch inputs. The system expects these inputs to drop to 0V within 1.5 minutes during the test. A persistent 24V signal indicates a failure to open the safety circuit, which compromises machine safety.

This error indicates that the Safe Reduced Rotational Velocity (SRG) limit has been exceeded, or that the Heidenhain TNC CNC Controller failed to achieve a standstill during the Safe Controlled Stop (SBH) operating mode. This is a critical safety violation, as the machine is operating at an unsafe speed or has not stopped as commanded by a safety function, posing a risk of injury or damage.

This error signals an internal software inconsistency within the Heidenhain TNC CNC Controller, specifically related to the management of gear ranges. It suggests a potential integrity issue with the control software that could lead to incorrect machine operation, unexpected gear changes, or uncontrolled movements.

This error occurs during the dynamic test of PLC peripheral devices (PL, MB, UEC) in the Heidenhain TNC CNC Controller. It signifies that the expected signal transition from 0 to 1 on the TEST.B output was not detected. This indicates a problem with the wiring of the TEST.B output, a short circuit, or an incorrect firmware version of the peripheral device, preventing proper safety function verification.

This error indicates that an internal process error was detected during a self-test routine within a component or module of the Heidenhain TNC CNC Controller. The error message provides diagnostic parameters (Address, Device, Actual value, Nominal value) that point to the specific location and nature of the internal fault, suggesting a potential hardware or firmware issue affecting system integrity.

This error indicates an internal process error detected during a self-test routine within the Heidenhain TNC CNC Controller. It provides an Error ID and three additional parameters, signaling a fault within a component or module that failed its diagnostic check. This suggests a potential hardware malfunction or a software inconsistency affecting internal system operations.

This error indicates that the Heidenhain TNC CNC Controller has detected an unauthorized or incorrect software version of the MC (Machine Control) software, specifically an autotest version. Installing incompatible or non-production software can lead to unpredictable machine behavior, system instability, and potential safety hazards, as it may not be fully tested or certified for operational use.

This error indicates an internal software error within the Heidenhain TNC CNC Controller related to the calling of an S-function. An S-function call error suggests a critical problem within the controller's operating system or application software, which can lead to unexpected machine behavior, system instability, or a complete system crash.

This error occurs when the Machine Control (MC) unit of the Heidenhain TNC CNC Controller fails to perform a required motor brake test, even though it is mandated by parameter settings. The test might also exceed its maximum allowed duration of 5 seconds. This indicates a potential safety risk, as the integrity and proper function of the motor brakes cannot be verified.

This error indicates that the Machine Control (MC) unit of the Heidenhain TNC CNC Controller failed to perform a required test of the motor brake line, as mandated by parameter settings. The test might also exceed its maximum allowed duration of 10 seconds. This suggests a potential issue in the electrical circuit controlling the brake, compromising safety by not verifying the integrity and responsiveness of the brake line.

This error indicates that a safety cutout channel test was automatically canceled by the Heidenhain TNC CNC Controller because the maximum permissible delay time was exceeded, or the NC did not properly complete a test section. This signifies a failure in verifying a critical safety switch-off function, potentially leaving a safety circuit unverified or in an unsafe operational state.

This error occurs when the Heidenhain TNC CNC Controller experiences insufficient memory, specifically due to an excessive number of clients configured for Ethernet transmission. This condition can lead to system instability, communication failures, or the inability to establish new network connections, potentially impacting machine operation and data exchange.