BECKHOFF AX5805 Installation - Manual (Page 95)

Error and diagnosis
AX5805 93
4 Error and diagnosis
When it is activated, STO initiates a coast-to-stop action. No braking is applied to the connected motors; the
torque applied to the motor is switched off and the motor coasts to a stop. The time and distance it takes for
the motor to stop depends on the mechanics and kinetic energy present in the system. If there are loads
suspended from the motor, the motor may even be accelerated. The user must provide external safety
mechanisms (e.g. mechanical brakes) to prevent such inadvertent motion.
The reason for switching off can be read from the diagnostic data (CoE object 0xFA82). The data within this
object is divided into:
- Diagnosis, and
- Error
Error indices smaller than 0x1000 or larger than 0x4FFF are errors that can be reset by the transition of the
EtherCAT state from PREOP to SAFEOP. These include communication errors, parameter errors and
environment errors.
All other errors are internal errors that can only be reset by a hardware reset or by switching the AX5805 to
the EtherCAT state BOOT.
4.1 Error indices in CoE object 0xFA82
Error
index in
0xFA82 Error name Description Typical error
reaction time
0x0001 FAULT_MAXT_C1 The temperature has exceeded the
maximum permissible temperature (MC1).
0x0002 FAULT_MAXT_C2 The temperature has exceeded the
maximum permissible temperature (MC2).
0x0003 FAULT_MINT_C1 The temperature has fallen below the
minimum permissible temperature (MC1).
0x0004 FAULT_MINT_C2 The temperature has fallen below the
minimum permissible temperature (MC2).
0x0101 HW_ERR_MAX_VCC_C1 The supply voltage has exceeded the
maximum permissible voltage.
0x0102 HW_ERR_MAX_VCC_C2 The supply voltage has exceeded the
maximum permissible voltage.
0x0103 HW_ERR_MIN_VCC_C1 The supply voltage has fallen below the
minimum permissible voltage.
0x0104 HW_ERR_MIN_VCC_C2 The supply voltage has fallen below the
minimum permissible voltage.
0x0201 FAULT_MCTC1_TO The MCTests of MC1 were not carried out
completely within the specified time
0x0202 FAULT_MCTC2_TO The MCTests of MC2 were not carried out
completely within the specified time
0x0203 FAULT_TIMER_C1 The global timer was not updated in time.
0x0204 FAULT_TIMER_C2 The global timer was not updated in time.
0x020C FAULT_TS_WDG_TO_C1 The TS module was not called within the
watchdog time.
0x020D FAULT_TS_WDG_TO_C2 The TS module was not called within the
watchdog time.