The relay can be configured in one of three programmable modes designated "0100", "0200", "0300". The difference in the operation of the DTDR when configured in the modes mentioned above is limited to how its DTDR contacts (NO) are reset. DTDR, having found the operation (NO -> C) of a potential-free contact (Timer Initiation Contact) connected to its terminals [6,7], begins to decrement its "relay operation timer" from an initial value. The initial value of the "relay operating time delay" corresponds to "timer setting". After "relay operating timer", count down to "0". DTDR exploits its NO contacts.
DTDR reset operation in "0100" mode:
Mode "0100" corresponds to the "Main Reset" mode. The NO contacts of the DTDR will remain in working condition until further human intervention. After the operation (NO -> C) of the DTDR contacts, the DTDR can be reset by pressing the "RESET" (RST) button of the DTDR.
DTDR reset operation in "0200" mode:
The "0200" mode corresponds to the "TYPE-1 Self Reset" mode. After the operation (NO -> C) of the DTDR contacts, an "automatic reset delay" will begin to decrement from a value equal to "Reset timer". When this "auto-reset timer" reaches its number of terminals ("0"), the DTDR is reset.
DTDR reset operation in "0300" mode:
"0300" mode corresponds to "TYPE-2 automatic reset" mode. After the operation (NO -> C) of the DTDR contacts, the DTDR goes into a waiting state where it waits for the "timer initiation contact" [6,7] to change from "closed state to normally open state" ". When "Timer Initiation Contact" on [6.7] changes from "Closed to Normally Open", an "Automatic Reset Timer" will begin to decrement from a value equal to "Reset Delay". When this "auto-reset timer" reaches its number of terminals ("0"), the DTDR is reset.
Features:
Wide adjustment range
Bright 7-segment LED display
Large auxiliary power supply
Selecting the main / auto-reset type
Application:
The digital time relay is used to provide a delay in a circuit.
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