Single Channel Protection Systems for increased safety requirements up to SIL2
We provide our customers with various protection systems for monitoring motors, pumps, and small turbines. These systems may be implemented to monitor any required value of rotational speed, including standstill. These single channel monitors can be provided with 1oo1, 1oo2 or 2oo2 architecture.
With single channel processing (1oo1) security provision is solely determined by the device configuration. Therefore the use of sensor monitoring with integrated plausibility control is essential. In such a case no redundancy is provided. Should a fault be detected, the entire system will be shut down immediately.
With two channel systems, there is a choice of implementation, dependent upon requirements. In principle, the two devices operate in parallel yet independently. Alarm indication can be realized through the linkage of their status signal outputs.
For 1oo2 processing we have system redundancy with enhanced security through comparative diagnosis. In the case of fault detection, the entire system will be shut down.
With 2oo2 processing, we still have system redundancy but with enhanced availability. Only if both systems fail, the system as a whole will be shut down.
E16 Monitor product matrix (overview)
| Model | SIL2 | Signal Input | Forward / Reverse |
Analog Output | Safety Output as DPST relays | Alarm Output as SPST relays | Alarm Output as PhotoMOS relays | Data Interface |
| E16521D.1 | ● | 1 (A5S) | ● | 1 | 1 | 2 | RS232* | |
| E16521D.2 | ● | 1 (EC) | ● | 1 | 1 | 2 | RS232* | |
| E16521D.3 | ● | 1 (MPU) | ● | 1 | 1 | 2 | RS232* | |
| E16225D.11 | ● | 1 (A5S) | ● | ● | 1 | 3 | RS232* | |
| E16225D.12 | ● | 1 (A5S) | ● | ● | 1 | 3 | PROFIBUS | |
| E16224D.11 | ● | 2 (A5S) | ● | 1 | 3 | RS232* | ||
| E16224D.12 | ● | 2 (A5S) | ● | 1 | 3 | PROFIBUS |
*RS232 only for parameterization
E16521D.1
Single Channel Speed Monitor E16521D.1 for increased safety requirements up to SIL2
- Monitor with sensor monitoring and self-test function with plausibility check
- 5 digit red LED display
- Frequency range 0 Hz...50 kHz
- Signal Input for BRAUN A5S... sensors
- 1 Analog Output 0/4...20 mA
- 1 Safety Output as DPST relay
- 3 Alarm Outputs, one as SPST relay and two as PhotoMOS relays
- Square wave Pulse Output
- RS232 Data Interface
- Maintenance-free during lifetime, therefore minimized TCO
- Two monitors, suitably configured with their Safety Outputs linked together, may provide a protection system with 1oo2 or 2oo2 redundancy
- Increased safety with 1oo2 architecture
- Maximum availability with 2oo2 architecture
- Universal Power Supply range 20…265 Vuc
- SIL2 / IEC 61508:2010 compliant
E16521D.2
Single Channel Speed Monitor E16521D.2 for increased safety requirements up to SIL2
- Monitor with sensor monitoring and self-test function with plausibility check
- 5 digit red LED display
- Frequency range 0 Hz...50 kHz
- Signal Input for Eddy-Current sensors (ECs)
- 1 Analog Output 0/4...20 mA
- 1 Safety Output as DPST relay
- 3 Alarm Outputs, one as SPST relay and two as PhotoMOS relays
- Square wave Pulse Output
- RS232 Data Interface
- Maintenance-free during lifetime, therefore minimized TCO
- Two monitors, suitably configured with their Safety Outputs linked together, may provide a protection system with 1oo2 or 2oo2 redundancy
- Increased safety with 1oo2 architecture
- Maximum availability with 2oo2 architecture
- Universal Power Supply range 20…265 Vuc
- SIL2 / IEC 61508:2010 compliant
E16521D.3
Single Channel Speed Monitor E16521D.3 for increased safety requirements up to SIL2
- Monitor with sensor monitoring and self-test function with plausibility check
- 5 digit red LED display
- Frequency range 0 Hz...50 kHz
- Signal Input for Magnetic Pick-Up sensors (MPUs)
- 1 Analog Output 0/4...20 mA
- 1 Safety Output as DPST relay
- 3 Alarm Outputs, one as SPST relay and two as PhotoMOS relays
- Square wave Pulse Output
- RS232 Data Interface
- Maintenance-free during lifetime, therefore minimized TCO
- Two monitors, suitably configured with their Safety Outputs linked together, may provide a protection system with 1oo2 or 2oo2 redundancy
- Increased safety with 1oo2 architecture
- Maximum availability with 2oo2 architecture
- Universal Power Supply range 20…265 Vuc
- SIL2 / IEC 61508:2010 compliant
E16225D
Single Channel Monitor series E16225D for measurement of speed + detection of direction with fault indication for increased safety requirements up to SIL2
- Monitor with sensor monitoring and self-test function with plausibility check
- 5 digit red LED display
- Frequency range 0 Hz...50 kHz
- Signal Input for BRAUN A5S sensors with speed and direction signal or two-phase shifted speed signals
- 1 Analog Output 0/4...20 mA
- 1 Safety Output as DPST relay
- 3 Alarm Outputs via relay contacts
- RS232 Data Interface (for version E16225D.11)
- PROFIBUS Data Interface (for version E16225D.12)
- Maintenance-free during lifetime, therefore minimized TCO
- Universal Power Supply range 20…265 Vuc
- SIL2 / IEC 61508:2010 compliant
E16224D
Dual Channel Monitor series E16224D for measurement of speed and ratio for increased safety requirements up to SIL2
- Monitor with sensor monitoring and self-test function with plausibility check
- 5 digit red LED display
- Frequency range 0 Hz...50 kHz
- 2 Signal Inputs for connection with two A5S series sensors
- 1 Analog Output 0/4...20 mA
- 1 Safety Output as DPST relay
- 3 Alarm Outputs via relay contacts
- RS232 Data Interface (for version E16224D.11)
- PROFIBUS Data Interface (for version E16224D.12)
- Maintenance-free during lifetime, therefore minimized TCO
- Universal Power Supply range 20…265 Vuc
- SIL2 / IEC 61508:2010 compliant
