7541239 TURCK | Alldatasheet
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Edition • 2023-07-21T16:29:26+02:00 Isolating switching amplifier 2-channel IM1-231EX-R The 2-channel IM1-231EX-R isolating switch- ing amplifier is equipped with intrinsically safe input circuits. Sensors according to EN 60947-5-6 (NAMUR) or potential-free contact transmitters can be connected to the device. The output circuits each feature a relay with a changeover contact. In addition, the device features a common alarm output. Via four switches on the front, the output mode (work or quiescent current behavior, i.e. NO/NC) can be switched on and off separate- ly for each channel as well as wire-break (WB) and short-circuit monitoring (SC). When using mechanical contacts, wire-break and short-circuit monitoring must be switched off or the contacts must be wired to resistors (II) (see circuit diagram). The Pwr LED lights green to indicate opera- tional readiness. The 2-color LED 1 lights yel- low to indicate the switching status of the out- put. In the event of an input circuit error, the 2- color LED turns red, with the input circuit mon- itoring switched on. Thereupon the output and the alarm relay drop out. ■ 2 relay outputs (changeover) ■ Output mode adjustable (NO/NC mode) ■ Input circuits monitored for wire-break/ short-circuit (ON/OFF switchable) ■ Common alarm output ■ Complete galvanic isolation ■ Input reverse-polarity protected ■ ATEX, IECEx, TR CU, INMETRO, NEPSI ■ Installation in zone 2
Edition • 2023-07-21T16:29:26+02:00 Type IM1-231EX-R ID 7541239 Nominal voltage Universal voltage supply unit Operating voltage 20…250 VAC Frequency 40…70 Hz Operating voltage 20…125 VDC Power consumption ð 3 W NAMUR input NAMUR EN 60947-5-6 Input circuit monitoring on/off switchable No-load voltage 8.2 VDC Short-circuit current 8.2 mA Input resistance 1 kò Cable resistance ð 50 ò Switch-on threshold 1.75 mA Switch-off threshold 1.55 mA Wire breakage threshold ð 0.06 mA Short-circuit threshold ï 6.4 mA Output circuits Output circuits (digital) 2 x relays (change-over) Output switching voltage relay ð 30 VDC / ð 250 VAC Switching current per output ð 2 A Switching capacity per output ð 500 VA/60 W Switching frequency ð 10 Hz Galvanic isolation Test voltage 2.5 kV RMS Important note For Ex-applications the values specified in the corre- sponding Ex certificates (ATEX, IECEx, UL, etc.) ap- ply. Ex approval acc. to conformity certificate TÜV 04 ATEX 2604 Application area II (1) G, II (1) D Ignition protection category [Ex ia Ga] IIC ; [Ex ia Da] IIIC Ex approval acc. to conformity certificate TÜV 06 ATEX 552967 X Application area II 3 G Ignition protection type Ex nA nC [ic Gc] IIC T4 Characteristic linear Displays/Operating elements Operational readiness Green Switching state Yellow Error indication red Dimensions Output relay – Load curve Output relay – Electrical lifetime
Edition • 2023-07-21T16:29:26+02:00 Mechanical data Protection class IP20 Flammability class acc. to UL 94 V-0 Ambient temperature -25…+70 °C Storage temperature -40…+80 °C Dimensions 104 x 27 x 110 mm Weight 212 g Mounting instructions DIN rail (NS35) or panel Housing material Polycarbonate/ABS Electrical connection 4 × 5-pin removable terminal blocks, reverse polarity protected, screw terminal Terminal cross-section 1 × 2.5 mm²/2 × 1.5 mm² Tightening torque 0.5 Nm
Edition • 2023-07-21T16:29:26+02:00 Accessories Type code Ident-No. Dimension drawing IM-CC-5X2BU/2BK 7504031 Cage clamp terminals for IM modules (Ex-devices with 27 mm overall width); includes: 2 pcs. 5-pin blue terminals and 2 pcs. 5-pin black terminals. WM1 WIDER- STANDSMODUL
0912101 The resistor module WM1 meets the requirements for line
monitoring between a mechanical contact and a TURCK signal processor. The input circuit of the signal processor is designed for sensors acc. to EN60947-5-6 (NAMUR) and equipped with a wire-break and short-circuit monitoring func- tion.