E16521D (SIL2)0 pages

E16

Single Channel Speed Monitor for

Rotating Equipment with SIL2 requirements

Series E16521D BRAUN

26 25 24 23 22 21 20 19

17 16 15 14

1 =SP1

2 = SP2

3 = SP3

4 = SP4

E16521D

U|BRAUN

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E1 6521 D System Front View

KEY FEATURES

■ SIL2 / IEC 61508:2010 compliant

■ Single Channel Monitor with sensor

monitoring and self-test function

■ Frequency range 0 Hz. ..100 kHz

1 Analog Output 0/4...20 mA

■ Bright red digital LED display

■ 4 Setpoint Alarms, 2 as SPDT contacts

and 2 as opto-relays

■ Universal Inputs, also for magnet

nductive sensors (MPUs)

■ Square wave pulse output

■ RS232 Data Interface

■ Two Monitors, suitably configured with

their setpoint contacts linked together,

may provide a protection system with

1oo2 or 2oo2 redundancy

■ Universal supply range

20...265 Vuc

Fast, precise and safe - from zero motion to highest speed

The BRAUN Single Channel Speed Monitor Series E16521 D for increased safety require-

ments is SIL2 / IEC 61508:2010 compliant. It monitors motors, pumps, feeders, gears,

rollers and small turbines and provides protection against overspeed at any required

value of rotational speed, including standstill

With single channel processing (1oo1) security provision is solely determined by the

device configuration. Therefore the use of sensor monitoring with integrated plausi-

bility 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 monitors operate in parallel yet independently.

Alarm indication can be realized through the linkage of their status signal outputs

For 1 oo2 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 monitors fail the entire system will be shut down

The E16521D Speed Monitor permanently monitors the speed sensors for their correct

function. During its complete lifetime cycle the monitor does not require any externa

proof tests and is completely maintenance-free.

BENEFITS

■ Fast, precise and safe

■ Maintenance-free during Lifetime,

therefore minimized TCO

■ Universal range of application,

throughout mechanical and electrica

engineering, in the chemical industry,

in power plants, at test stands

■ Increased safety with

1oo2 architecture

■ Maximum availability with

2oo2 architecture

BRAUN

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