Zelio time-Timing relays catalog
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Zelio Time Timing relays

Zelio Time - timing relays Selection guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 2 bb Presentation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 4 bb Definitions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 4 bb Selection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 6 bb Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ....

Selection guide Zelio Time - timing relays These timing relays enable simple automation cycles to be set up using wired logic. They can also be used to complement the functions of PLCs. Solid state Timing relays with solid state output reduce the amount of wiring required (wired in series). The durability of these timing relays is independent of the number of operating cycles. Relay Relay outputs provide complete isolation between the supply circuit and the output. It is possible to have several output circuits. Time ranges v 1 or 2 ranges depending on model: 10 s, 30 s, 300 s, 60 min...

These timing relays enable simple automation cycles to be set up using wired logic. They can also be used to complement the functions of PLCs. Relay Relay outputs provide complete isolation between the supply circuit and the output. It is possible to have several output circuits. Panel mounted Universal v 1 range depending on model: 0.5 s, 3 s, 10 s, 30 s, 300 s, 30 min Depending on model: v 7 ranges: 99.99 s, 999.99 s, 99 min 59 s, 99.99 min, 999.9 min, 99 h 59 min, 999.9 h. v 11 ranges: 99.99 s, 999.99 s, 9999 s, 99 min 59 s, 99.99 min, 999.9 min, 9999 min, 99 h 59 min, 99.99 h, 999.9 h,...

Zelio Time - timing relays DIN rail mounted relays A timing relay is a component which is designed to time events in industrial automation systems by closing or opening contacts before, during or after a set timing period. There are two main 'families' of timing relays: b "DIN rail mounted" relays (RE7, RE8, RE9, RE17, REXL…) designed for mounting on DIN rails in an enclosure, b "Panel mounted" relays type RE48A designed for mounting on the front of a panel to give users easy access to the settings. RE17 Panel mounted relays These relays have one, two or four outputs. Sometimes the second...

Presentation (continued) Zelio Time - timing relays Definitions (continued) Functions Timing functions are identified by letters. Main timing functions Complementary Definitions functions (1) Power on delay relay Ac On-delay and off-delay relay with control signal Pulse delayed relay with control signal Pulse delayed relay (single cycle) with control signal Asymmetrical On-delay and Off-delay with external control Power on delay relay (summation) with control signal Off-delay on energization or on opening of control contact Interval relay with control signal Bw Double interval relay with...

Zelio Time - timing relays Selection table Selection criteria b Functions (On-delay or Off-delay, counter, flashing…) b Supply voltage (example: a/c 12 V…240 V). b Timing range for a timing relay (example: 0.05 s…100 h) b Type of output (contact or solid state) and required Number of contacts. b Breaking capacity or Rated current of contacts, expressed in Amperes. This is the maximum current which may flow through the contacts. Functions Timing range Supply voltage Rated current 1 solid state output 1 solid state output 1 solid state output

Zelio Time - timing relays Selection (continued) Selection table (continued) Functions Timing range Supply voltage Rated current 1 solid state output 1 solid state output 1 solid state output

Zelio Time - timing relays U: Supply R: Relay or solid state output R1/R2: 2 timed outputs R2 inst.: The second output is instantaneous if the right position is selected T: Timing period C: Control contact G: Gate Ta: Adjustable On-delay Tr: Adjustable Off-delay Function diagram : Relay de-energized Relay energized Output open Output closed Function A: Power on delay relay 1 output The timing period T begins on energization. After timing, the output(s) R close(s). The second output can be either timed or instantaneous. T 2 timed outputs (R1/R2) or 1 timed output (R1) and 1 instantaneous...

Functions (continued) Zelio Time - timing relays Functions (continued) Function Ak: Asymmetrical On-delay and Off-delay with external control After power-up and closing of the control contact C, timing starts for a period Ta (timing can be interrupted by operating the Gate control contact G). At the end of this timing period Ta, the output R closes. Opening of control contact C causes a second timing period Tr to start (timing can be interrupted by operating the Gate control contact G). At the end of this timing period Tr, the output R reverts to its initial state. Ta = t1 + t2 + … Tr = t’1...

Zelio Time - timing relays Functions (continued) Functions (continued) Function C:Off-delay relay with control signal 1 output After power-up and closing of the control contact C, the output R closes. When control contact C re-opens, timing T starts. At the end of the timing period, output(s) R revert(s) to its/their initial state. The second output can be either timed or instantaneous. 2 timed outputs (R1/R2) or 1 timed output (R1) and 1 instantaneous output (R2 inst.). Function D: Symmetrical flasher relay (starting pulse off) 1 output Repetitive cycle with two timing periods T of equal...

Functions (continued) Zelio Time - timing relays Functions (continued) Function He: Pulse-on de-energization On de-energization, the output R closes for the duration of a timing period T. Function Ht: Interval relay (summation) with control signal On energization, the output R closes for the duration of a timing period T then reverts Pulsing or maintaining control contact C will again close the output R. Timing T is only active when control contact C is released and so the output R will not revert to its initial state until after a timed +t2+ ... . The relay memorises the total, cumulative...