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System solutions for Functional Safety
Just safe single components do not ensure a safe global application. Only the optimal combination of safety sensors and safety monitoring modules brings about reliable solutions, which will meet the necessary safety requirements.
The optimal combination of Kübler's Safety-M modules and Sendix SIL encoders allows an easy implementation of a safe drive monitoring system.
Safe motion / position monitoring with Sendix SIL encoders and Safety-M modules
Safe motion monitoring / 1 axis Absolute Sendix SIL encoder + Safety-MSP1 module
Safe motion monitoring / 2 axes 2 x Incremental Sendix SIL encoder + Safety-MS2 module + BM extension module for bus communication
Connection possibilities of the Safety-M modules
Achievable safety functions up to SIL3 / PLe / Cat. 4:
| Abbreviation | Designation | Function |
|---|---|---|
| SSX | Safe Stop 1 or 2 | Monitoring of the braking ramp and switch-off of the motor after standstill (SS1) or monitoring of the braking ramp and SOS after standstill (SS2). Corresponds to Stop Category 1 or 2 according to DIN EN 60204-1. |
| SOS | Safe Operating Stop | Monitoring of the standstill of the active motor. |
| SLA | Safety-Limited Acceleration | Monitoring of the exceeding of an acceleration limit value. |
| SLS | Safety-Limited Speed | Monitoring of a speed limit value. |
| SLT | Safety Limited Torque | Monitoring of a torque / force limit value. |
| SLP | Safety-Limited Position | The exceeding of a position limit value is monitored. |
| SEL | Safe Emergency Limit | Safe monitoring of the minimum and maximum position or of the allowed position range. Optional monitoring of the speed/position limit curve for minimising the worst-case travel path. |
| SLI | Safety Limited Increment | The respect of a specific step value during motion is monitored. |
| SDI | Safe Direction | Monitoring of the unintended direction of motion of the motor. |
| SBC | Safe Brake Control | Safe control and monitoring of an external brake. |
| SCA | Safe Cam | A safe output signal is generated when the motor position is in a specified range. |
| SSM | Safe Speed Monitor | A safe output signal is generated when the motor speed is lower than a specified value. |
| SAR | Safe Acceleration Range | Monitoring of the respect of the acceleration of the motor within specified limit values. |
| ECS | Encoder Status | Error status of the speed / position sensor. |
| PDM | Position Deviation Muting | Muting of the deviation monitoring in case of 2-sensor operation. |