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104595 Datasheet(PDF) 16 Page - PHOENIX CONTACT |
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104595 Datasheet(HTML) 16 Page - PHOENIX CONTACT |
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16 / 41 page  MACX MCR-T-UI-UP... 104595_en_04 PHOENIX CONTACT 16 8.7 Sensor types The sensor types that can be used and their specific proper- ties can be found in the chapter entitled “Order key” on page 7 Depending on the connection method, the following termi- nal points are to be connected for temperature measure- ment (see Figure 1 on page 14): 8.7.1 Thermocouple (TC) with internal cold junction compensation – Thermocouple connection : Terminals 4.1 “+“, 4.2 “-“ 8.7.2 Thermocouple (TC) with external or without cold junction compensation – Thermocouple connection: Terminals 5.1 “+“, 5.2 “-“ 8.7.3 Voltage input – Connection: Terminals 5.1 “+“, 5.2 “-“ 8.7.4 Potentiometer – Connection: Terminals 4.1, 4.2, 4.3 8.7.5 Resistance thermometer (RTD) – 2-wire connection method: Terminals 4.2, 4.3 The cable resistance can be compensated with the help of the IFS-CONF PC program, the IFS-OP-UNIT opera- tor interface or in service mode (DIP switch). – 3-wire connection method: Terminals 4.1, 4.2, 4.3 In the case of the 3-wire connection method, ensure that all three cable resistances are the same. – 4-wire connection method: Terminals 4.2, 4.3, 5.1, 5.2 – 2 x 2-wire connection method Terminals RTD 1: 4.2, 4.3 Terminals RTD 2: 5.1, 5.2 8.7.6 Measuring resistances The terminal points 4.2 and 4.3 are used for measuring dif- fering resistances. 8.8 Current output The current output can be freely configured between 0 and 20 mA. The minimum span is 4 mA. In safety-related appli- cations (SIL = ON), the output is fixed at 4 ...20 mA. – Connection: Terminals 3.2 “+“, 3.3 “-“ 8.9 Voltage output The voltage output can be freely configured between -10 and +10 V. The minimum span is 2 V. – Connection: Terminals 3.1 “+“, 3.3 “-“ Use the MACX MCR-CJC cold junction compen- sation connector provided (Order No. 2924993). TC+CJ: Use the cold junction compensation con- nector provided at connection terminal blocks 4.1, 4.2 and 4.3. TC+CJ external: Use the external cold junction sensor (e.g. PT100) at connection terminal blocks 4.2 and 4.3. RL ≤ 25 Ω for each lead. Up to 75 Ω: RL ≤ 2.5 Ω for each lead. Up to 150 Ω: RL ≤ 5 Ω for each lead. Up to 300 Ω: RL ≤ 10 Ω for each lead. The voltage output cannot be used for safety-re- lated applications (SIL = ON). |
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