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Safety functions in compliance with EN 61800-5-2

Independent of the drive technology, SMX provides all the functions required by EN 61800-5-2 for drive monitoring and also delivers practical function extensions. Whether that means single or multi-axis mode, a simple inverter or high-quality servo drive, electrical, hydraulic or pneumatic drive unit, the safety functions integrated in the firmware are easy to use and guarantee full future-safety.

Designation Function SMX Safety Advanced additional function
SSX | Safe Stop 1 or 2 Monitoring the braking ramp and shutting down the motor after a standstill has been reached (SS1) or monitoring the braking ramp and SOS after a standstill has been reached (SS2) Corresponds to stop category 1 or 2 to DIN EN 60204-1 Monitoring the expected delay, The duration of the delay can be parameterised (S smoothing)
SOS | Safe Operation Stop Monitoring standstill when the motor is active Speed or relative position monitoring, Optional fast channel monitoring (2 ms)
SLA | Safely-Limited Acceleration Monitoring when an acceleration limit value is exceeded Filter value for acceleration can be parameterised
SLS | Safely-Limited Speed Monitoring a speed limit value Optional monitoring of the delay to reduced speed, filter value for reduced speed can be parameterised
SLT | Safely-Limited Torque Monitoring a torque / force limit value Optional zone monitoring, addition of two values, can be parameterised, filter can be parameterised
SLP | Safely-Limited Position Exceeding a position limit value is monitored The duration of the delay can be parameterised (S form), braking monitoring, speed/position limit curve can be parameterised for monitoring the approach
SEL | Safe Emergency Limit Safe monitoring of the minimum and maximum position and the permitted position range. Optional monitoring of the speed/position limit care to minimise the worst case overtravel distance. Minimum position value, maximum position value, Optional delay and smoothing form/time.
SLI | Safely-Limited Increment Compliance with a specified step size during movement is monitored Direction monitoring, maximum movement in the opposite direction can be parameterised
SDI | Safe Direction The unintended movement direction of the motor is monitored Maximum movement in the opposite direction can be parameterised
SBC | Safe Brake Control Safe actuation and monitoring of an external brake Brake monitoring active, optional braking distance monitoring, brake test function
SCA | Safe Cam Whilst the motor position is in a specified range, a safe output signal is generated Optionally inverted range monitor, optional speed monitoring in the range, optional speed/position limit curve, can be parameterised for monitoring the approach to range limits
SSM | Safe Speed Monitor Whilst the motor speed is lower than a specified value, a safe output signal is generated Rotational speed limit value, filter value can be parameterised
SAR | Safe Acceleration Range Compliance with the acceleration of the motor within specified limit values is monitored Rotational speed limit value, filter value can be parameterised
ECS | Encoder Control Muting Error status of the speed/position sensor -
PDM | Position Deviation Muting Muting of the deviation monitor in 2-sensor mode Activation in the event of an alarm or active input, activation test
SBT | Safe Break Test Safe monitoring and testing of external, mechanical brakes or internal motor brakes Bespoke function with all the required parameters, suitable for one or two brakes per direction of movement
SAC | Safely Analog Control Monitoring and analogue input signal Basis for safe analogue processing such as load, torque or weight
SSR | Safe Speed Range Safe speed range monitor Not just speed range but also with acceleration and tolerance for briefly exceeding the defined range
STR | Safe Torque Range Safe torque range monitor Possible in a combination of speed and rotational direction
SMT | Safe Monitor Temperature Safe monitoring of the temperature of a monitor Also suitable for process engineering requirements
ACS | Analog Control Muting Muting of the diagnostics for analogue input interface Suppression of failed sensors during commissioning states to allow reduced operation
ICS | Input Control Muting Muting of the diagnostics for Digital inputs Suppression of failed sensors during commissioning states to allow reduced operation
DEM | Dynamic Encoder Muting Speed-dependent muting function and status output for diagnostic function for monitoring the speed sensors Muting of encoder signals if no safety-relevant conditions are satisfied
PRF | Position Reference Function Adjustment of safe encoder of values to static position Encoder values can be checked and fix control points adjusted as often as required for slippage-based applications, for example
SMF | Safe Matrix Function Safe cell properties in a matrix which can be changed by events on a safety basis Safe function for database cooperation such as storage positions, changeable interfering contours, storeys, dynamic prohibited zones
EOS | External Encoder Offset Offset of an encoder is adjusted to new conditions on a safety basis Function for adjusting static encoders two mechanical changes such as a new HOME position, change dimensions, etc. without reparameterisation.