the device contains polarity reversal protection the power supply voltage. The ohmic resistance on-state relay contacts Specific dielectric strength between the input side the relay and its output contacts 1000V. The installation the device directly outdoor conditions not possible; necessary pay attention maintaining sufficient space for the connection the power supply and the signal conductors. The unwished polarity reversal the power supply voltage doesn't lead the device damage destruction. recognize the reversing polarity when after switching the power supply voltage on, the green control LED “PWR” the front panel won't light up. Electrical mounting
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electrical mounting must done only person specially qualified electrical engineering and trained installation this device
power supply the device requires direct current (DC) power supply voltage 24V; -
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the quiescent current take-off the device without RS-232/RS-485 interface connected 50mA. The quiescent current take-off with power supplying through USB interface mA. The placement connection clamps the alarm relay described the Figure the picture attachment.1. Neglecting these parameters can cause failure homogeneity the coaxial cable and therefore causes the reduction the radio range the device. The electric current take-off with active RS-232/RS-485 interface 0,1A Total electrical current take-off depends the working mode line interface and the working mode subsystem; the quiescent current take-off the WM868-U device without USB interface connected 35mA.g. The relay able trigger the direct current voltage 60V, and the current 100mA. Mechanical mounting
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the device designed for the mounting DIN bar into distribution cases. circuit breaker). the primary side the power supply source must protected automatically irreversible fuse
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WM868-R2/R4/U/REP description and operation
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. The case equipped with plastic lock set for the mounting the DIN bar that provides easy mounting and dismounting the device; power supply source should placed close possible the device that the connection the power supply voltage 24V= was short possible; the device intended for the standard indoor mounting with temperature range -10 +50*0, with 90% humidity, condensation. power supply source must meet the safety protective transformer requirements according the local governmental standard (in Czech Republic CSN-EN61558-2-6). the device equipped reversible fuse (polyswitch) the power supply input with actuating current 300 and over-voltage protection with 30V trigger-level. necessary keep enough space for the configuration cable connection; very special attention should paid the space for the antenna cable leading and connection. The electric current take-off with active USB interface 0,1 Total electrical current take-off depends the device's working mode.
5.put the device back normal operation mode (from the permanent alarm status after three unsuccessful attempts recover the power supply the output interface) necessary disconnect the electrical power supply from the output interface and then switch the device off and again.
5.2. Installation and operation the device
5. The alarm relay SSR (solid state relay); operating contacts the relay are galvanically separated from the unit circuits. The minimum bend radius the antenna cable with diameter are cm; for the antenna cable with 2,5 diameter the minimum bend radius cm. the device doesn't contain disconnecting element switch. useful place disconnecting element the power supply 24V= bus the electric power side (e. the next thing have get rid the trouble cause the overload short circuit
