توضیحات
Function:
The MTLx516/C enable two safe-area loads to be controlled by a switch
or proximity detector located in a hazardous-area. When selected, open
or short circuit conditions in the field wiring are detected by the line-
fault-detect (LFD) facility and also indicated on the top of the module.
Phase reversal for each channel is selected by a switch on the side of
the module and output is provided by changeover relay contacts.
Line fault detection (LFD) (when selected)
User-selectable via switches on the side of the unit. Line faults are
indicated by an LED for each channel. The channel output relay is
de-energised if an input line fault is detected.
Open-circuit alarm on if Iin < 50μA
Open-circuit alarm off if Iin > 250μA
Short-circuit alarm on if Rin < 100Ω
Short-circuit alarm off if Rin > 360Ω
Note: Resistors must be fitted when using the LFD facility with a contact input
500Ω to 1kΩ in series with switch
20kΩ to 25kΩ in parallel with switch
نقد و بررسیها
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