1. General Introduction
The proximity sensor or switch controls a form A normally open relay contact for the safe area load. The normal output state can be reversed using switches S1 and S2. Switch S3 is used to enable or disable line fault detection of the field circuit. During an error condition, relays revert to their de-energized ,state and LEDs indicate the fault according to NAMUR NE44. A unique collective error messaging feature is available when used with the Power Rail system. Due to its compact housing design and low heat dissipation,this device is useful for detecting positions, end stops, andswitching states in space-critical applications
2. General Specification for KFD2-SH-EX1.T.OP
Model | KFD2-SH-EX1.T.OP |
General specifications | |
Signal type | Digital Input |
Functional safety related parameters | |
Digital Input | SIL 3 |
Performance level (PL) | PL d |
Supply | |
Connection | Power Rail |
Rated voltage U | 20 ... 30 V DC |
Ripple | ≤10 % |
Rated current Ir | ≤100 mA |
Power dissipation | 1.5 W |
Power consumption | ≤1.7 W |
Input | |
Connection side | field side |
Connection | terminals 4+, 6- |
Open circuit voltage/short-circuit current | approx. 8.4 V DC / approx. 11.7 mA |
Lead resistance | ≤50 , cable capacitances and inductances must be observed in hazardous areas |
Switching point | |
Relay de-energized | I < 2.1 mA and I > 5.9 mA , output switched off |
Relay energized | 2.8 mA < I < 5.3 mA , output switched on |
Response delay | ≤1 ms |
Output | |
Response delay | control side |
Connection | output I: terminals 7+, 8- ; output II: terminals 9, 10 ; output III: terminals 11, 12 |
Output I | active voltage output, short-circuit proof 0-signal: 0 V 1-signal: 20 ... 31 V DC at max. 15 mA fault: 0 V |
Output II | relay |
Contact loading | 48 V AC/DC250 mA |
Mechanical life | ≤20 x 106 switching cycles |
Output III | relay , fault signal |
Contact loading | 48 V AC/DC 250 mA |
Mechanical life | ≤20 x 106 switching cycles |
Transfer characteristics | |
Switching frequency | |
Output I | ≤5 0Hz |
Output II | ≤5 Hz |
Output III | ≤5 Hz |
Indicators/settings | |
Display elements | LEDs |
Labeling | space for labeling at the front |
Directive conformity | |
Electromagnetic compatibility | |
Directive 2014/30/EU | EN 61326-1:2013 (industrial locations) |
Machinery Directive | |
Directive 2006/42/EC | EN/ISO 13849-1:2008 |
Conformity | |
Electromagnetic compatibility | NE 21:2011 |
Degree of protection | IEC 60529:2001 |
Safety | IEC/EN 61508:2010 |
Ambient conditions | |
Ambient temperature | -20 ... 60 °C (-4 ... 140 °F) |
3. Connection
4. Configuration
