FLEX COMBI 21

Protection class: IP 20
Operating temperature: 0 ºC…+40 ºC
Storing temperature: -20 ºC…+70 ºC
Power supply
– Operating voltage: 24 Vac (-10 % … +25 %) , 50/60 Hz
– Power required: (15 Vdc output = if not connected) 8 VA. (15 Vdc output = 750 mA) 29 VA. Notice! Please consider 24 Vac operating voltage and power required for Triac outputs.
– Backup input: 12 Vdc
– Current consumption: Relays are not in use=100 mA/1,2W, relays in use=200mA/ 2,4W
Universal inputs (can be configured):
– Passive sensors (inputs 1…9): Measurement channel accuracy:
– NTC10 element: +/- 0,1 ºC between -50 ºC…+100 ºC, +/- 0,25 ºC between +100 ºC…+130 ºC
– Ni1000 element: +/- 1,0 ºC between -50 ºC…+130 ºC
– PT1000 element: +/- 1,0 ºC between -50 ºC…+130 ºC
Also sensor tolerances and the effect of cables must be considered when calculating total accuracy.
– Active sensors (inputs 1…9): 0…10 V voltage message, meas. accuracy 1mV. Milliampere signal with shunt resistor 0/4-20 mA
– Contact information (inputs 1…9): Contact voltage 5 Vdc. Contact current 0,5 mA. Contact resistance max. 1,9 kΩ (closed), min. 11 kΩ (open)
Analog outputs: Output voltage range 0…10 V. Output current max. 10 mA / output
Relay outputs
– Change-over contact relay (71…76): 230 V, 6 A
– Norm. open contact relay (77…84): 230 V, 6 A
Triac outputs
– 24 Vac (42 and 43): Output current together max. 1 A
– 24 Vac (44 ja 45): Output current together max. 1 A
Operating voltage
– 5 pcs 24 Vac (41): Ouput current max. 1 A / output
– 15 Vdc output: Output curent max. 750 mA
Data transfer connections
– RS-485 bus (A1 and B1): Galvanically isolated, supported protocols Modbus-RTU