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) safety 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 safety 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	●	1 (A5S)	●	●	1	3		PROFIBUS/ RS232*
E16224D	●	2 (A5S)		●	1	3		PROFIBUS/ RS232*

*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

Details

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

Details

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

Details

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
PROFIBUS / RS232 Data Interface
Maintenance-free during lifetime, therefore minimized TCO
Universal Power Supply range 20…265 Vuc
SIL2 / IEC 61508:2010 compliant

Details

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
PROFIBUS / RS232 Data Interface
Maintenance-free during lifetime, therefore minimized TCO
Universal Power Supply range 20…265 Vuc
SIL2 / IEC 61508:2010 compliant

Details