Multi-Channel Passive Isolator MCR-...CLP-I/I-00

Transcription

1 Multi-Channel Passive solator MCR-...CLP-/-00 Electrical isolation without additional power supply Current signals 0(4)...20 ma 1-, 2- and 4-channel versions 1. Description MCR-1,2,4CLP-/-00 passive isolators are used for the electrical isolation and processing of analog 0(4) 20 ma standard current signals. The blocks provide electrical isolation between the control electronics and process /O. n addition, interference signals above 7 Hz are effectively suppressed. nput and output circuit do not require separate auxiliary power. The modules obtain this power from the input signal. The modules are snapped onto symmetrical DN rails in accordance with EN When using passive isolators, ensure that the current-driving voltage of the measuring transducer U B is sufficient for driving the maximum current of 20 ma over the passive isolator with the power loss of U V = 2. V and the load R B. This means: U B U E = 2. V + 20 ma * R B The graphic shows the input voltage of U E dependant on the load R B considering the power loss U V. f you know your load, the lowest voltage, which the sensor should use to drive a maximum current of 20 ma via passive isolators and loads, can be read from the Y-axis. nput voltage depending on the load at A = 20 ma U E / V 2 U B U E UV = 2. V MCR-1CLP R B U V = 2, V R B / Ω Headquarters: Phoenix Contact GmbH & Co. KG Flachsmarktstraße 322 Blomberg Germany Phone Fax

2 Multi-Channel Passive solator MCR-...CLP-/ Technical Data 1 2 N 6 (4.0 in.) (3.9 in.) M 3 MCR-1CLP-/-00 with signal conversion: 0(4)...20 ma / 0(4)...20 ma 1-channel solid flexible [mm 2 ] AWG Aa Connection data Description MCR passive isolator, for electrical isolation of current signals without power supply 1-channel Module Width 12. mm (0.492 in.) Type Order No. Pcs. Pkt. MCR-1CLP-/ Technical Data Per Channel nput nput signal Power loss Maximum input current/overload Maximum input voltage/overload Voltage limitation with zener diode 2. V at = 20 ma 0 ma / 100 ma 30 V / 30 V 33 V ± % signal Maximum output signal Maximum load Ripple < 0 ma 137 Ω at = 20 ma output signal < mv rms General Data Transmission error Additional error every 100 Ω load Temperature coefficient Cut-off frequency (3 db) Response time (10-90%) Test voltage Ambient temperature range Housing material nput/output Channel/channel 0.1% of the final value 0.02% of the measured value 0.002%/K of the measured value / 100 Ω load < 7 Hz at = 20 ma and maximum load ms at 00 Ω load 10 V, 0 Hz, 1 minute 10 C to +70 C (14 F to 1 F) Polyamide PA, unarmored PHOENX CONTACT page 2 of 6

3 Multi-Channel Passive solator MCR-...CLP-/ N (4.0 in.) (3.9 in.) M 3 MCR-2CLP-/-00 with signal conversion: 0(4)...20 ma / 0(4)...20 ma 2-channel solid flexible [mm 2 ] AWG Aa Connection data Description MCR passive isolator, for electrical isolation of current signals without power supply 2-channel Module Width 12. mm (0.492 in.) Type Order No. Pcs. Pkt. MCR-2CLP-/ Technical Data per Channel nput nput signal Power loss Maximum input current/overload Maximum input voltage/overload Voltage limitation with zener diode 2. V at = 20 ma 0 ma / 100 ma 30 V / 30 V 33 V ± % signal Maximum output signal Maximum load Ripple < 0 ma 137 Ω at = 20 ma output signal < mv rms General Data Transmission error Additional error every 100 Ω load Temperature coefficient Cut-off frequency (3 db) Response time (10-90%) Test voltage Ambient temperature range Housing material nput/output Channel/channel 0.1% of the final value 0.02% of the measured value 0.002%/K of the measured value / 100 Ω load < 7 Hz at = 20 ma and maximum load ms at 00 Ω load 10 V, 0 Hz, 1 minute 2 kv, 0 Hz, 1 minute 10 C to +70 C (14 F to 1 F) Polyamide PA, unarmored PHOENX CONTACT page 3 of 6

4 Multi-Channel Passive solator MCR-...CLP-/-00 N ! " $ % & (4.0 in.) (3.9 in.) M 3 MCR-4CLP-/-00 with signal conversion: 0(4)...20 ma / 0(4)...20 ma 4-channel solid flexible [mm 2 ] AWG Aa Connection data Description MCR passive isolator, for electrical isolation of current signals without power supply 4-channel Module Width 22. mm (0.6 in.) Type Order No. Pcs. Pkt. MCR-4CLP-/ Technical Data per Channel nput nput signal Power loss Maximum input current/overload Maximum input voltage/overload Voltage limitation with zener diode 2. V at = 20 ma 0 ma / 100 ma 30 V / 30 V 33 V ± % signal Maximum output signal Maximum load Ripple < 0 ma 137 Ω at = 20 ma output signal < mv rms General Data Transmission error Additional error every 100 Ω load Temperature coefficient Cut-off frequency (3 db) Response time (10-90%) Test voltage Ambient temperature range Housing material nput/output Channel/channel 0.1% of the final value 0.02% of the measured value 0.002%/K of the measured value / 100 Ω load < 7 Hz at = 20 ma and maximum load ms at 00 Ω load 10 V, 0 Hz, 1 minute 2 kv, 0 Hz, 1 minute 10 C to +70 C (14 F to 1 F) Polyamide PA, unarmored PHOENX CONTACT page 4 of 6

5 Multi-Channel Passive solator MCR-...CLP-/-00 c Conforms to the EMC Directive 9/336/EEC and the Low Voltage Directive 73/23/EEC EMC (Electromagnetic Compatibility) Noise immunity in accordance with EN Electrostatic discharge (ESD) Electromagnetic HF field Amplitude modulation Pulsed modulation Fast transients (burst) EN EN EN kv air discharge 2) 10 V/m 1) 10 V/m 1) nput/output 2 kv/ khz 2) Surge current load (surge) EN nput/output: 2 kv/42 Ω 2) Conducted interference Noise emission in accordance with EN EN EN 022 nput/output 10 V 1) Class B EN corresponds to EC 1000/ EN 022 corresponds to CSPR22 1) Criterion A: Normal operating characteristics within the specified limits. 2) Criterion B: Temporary adverse effects on the operating characteristics that the device corrects independently. Class B: ndustrial and domestic applications 3. Connection Notes To ensure problem-free operation, the signal source for the passive isolator must supply a sufficiently high voltage: U S U RL + U E = U RL1 + U RL2 + U T + U B source U S URL1 RL1 RL2 0 20mA N U E U T B (0 20mA) RB UB The maximum load to be driven depends on the input voltage UE of the passive isolator. URL2 MCR-1CLP Calculation: nput voltage depending on the load at A = 20 ma URL = U RL1 + U RL2 = 20 ma * R L U E =U T + U B = 2. V + 20 ma * R B R L = 2 γ A U E / V U E = nput voltage at passive isolator U T = Voltage drop at passive isolator U B = Voltage drop at output load U RL = Voltage drop via both incoming cables A = Conductor cross-section in mm U V = 2, V l = Line length between signal source and passive isolator R B / Ω γ = Electr. conductivity [Cu = 6 m/ω* mm 2 ] R B = Load impedance PHOENX CONTACT page of 6

6 Multi-Channel Passive solator MCR-...CLP-/ Application Example: Flow Rate Measurement Magnetic inductive flow meter 24V mA 1 MCR-1CLP-/ mA 2 GND 1 N GND 2 6 Control system PHOENX CONTACT TNR: PHOENX CONTACT page 6 of 6