Chronos 2 electronic timers - 17.5 mm 1 changeover relay output ■ ■ ■ ■ ■ ■ ■ ■ Multi-function or mono-function Multi-range (7 ranges, available options) Multi-voltage 1 changeover relay output: 8 A - 250 V (10 A UL) Screw or spring terminals 1 LED status indicators Option of connecting an external power supply to the control input 3-wire sensor control option Timing Technical specifications Timing ± 0.5 % (CEI 1812-1) Screw terminals Spring terminals - Temperature - Voltage Display precision according to IEC 1812-1 Minimum pulse duration - Typically (relay version) - Typically (solid state version) - Typically under load (relay version) Maximum reset time by de-energisation ± 0.05 % / °C ± 0.2 % / V ±10 % / 25 °C 24V c / 24 • 240V a 12 V a / c 12 • 240 V a / c - Typically (relay version) - Typically (solid state version) Immunity to breaks in supply voltage: typically 100 ms 350 ms >10 ms Repetition accuracy (with constant parameters) Drift 1 0.1s • 100h 0.1s • 100h MUR1 - MAR1 Types Functions 30 ms 50 ms 100 ms - Part numbers and voltage Nominal current 88 826 105 Multi-function A - At - B - C - H - Ht Di - D - Ac - Bw 8A 88 826 115 Bifunction A - At 8A Timing ranges (7 ranges) 1s - 10 s - 1 min - 10 min - 1 h - 10 h - 100 h Power supply Multi-voltage power supply Frequency Operating range Load factor Maximum power consumption General specifications depending on version, see page 1/13 50/60 Hz 85 to 110 % Un (85 to 120 % Un for 12V AC/DC) 100 % 0.6 W 24V AC/DC 1.5 W 230V AC 32 VA 230V AC Conforming to standards IEC 1812-1, EN 50081-1/2, EN 50082-1/2, LV directives (73/23/EEC + 93/68/EEC (CE marking) + EMC (89/336/EEC + IEC 669-2-3 (17.5 mm) Approvals UL - CSA - cUL pending Temperatures limits - use - stored Installation category (acc. to IEC 664-1) Output elements relay output 1 or 2 changeover relays, AgNi (cadmium-free) Rated power Maximum breaking current Minimum breaking current Voltage breaking capacity Electrical life Mechanical life Breakdown voltage acc. to IEC 1812-1 Impulse voltage acc. to IEC 664-1 IEC 1812-1 2000 VA / 80 W 2000 V A / 80W 8 A AC 8 A DC 10 mA / 5 VDC 250V AC/VDC 105 operations 8 A 250V resistive 5 x 106 operations 2.5 kV / 1min / 1 mA /50Hz 5 kV, wave 1.2 / 50 µs Creepage distance and clearance acc. to IEC 664-1 Degree of protection acc. to IEC 529 - terminal block - casing - front face (except Tk2R1) Vibration resistance acc. to IEC 68-2-6 Relative humidity acc. to IEC 68-2-3 without condensation Electromagnetic compatibility - Immunity to electrostatic discharges acc. to IEC 1000-42 - Immunity to electrostatic fields acc. to ENV 50140/204 (IEC 1000-4-3) - Immunity to rapid transient bursts acc. to IEC 1000-4-4 Display State displayed by 1 LED - Flashing green when on Green LED operation indicator Pulsing: - timer on, no timing in progress (except functions Di-D and Li-L) Flashing: - timing in progress Permanently lit: - Relay waiting, no timing in progress Input type - Volt-free contact - 3-wire PNP output control option maximum residual voltage: 0.4 V whatever the timer power supply - Immunity to shock waves on power supply acc. to IEC 1000-4-5 - Immunity to radiofrequency in common mode acc. to ENV -20 °C + 60 °C -30 °C + 60 °C Voltage surge category 4 kV / 3 IP 20 IP 40 IP 50 f = 10 • 55 Hz A = 0.35 mm 93 % Level III (Air 8 K / Contact 6 KV) Level III 10V/m: 80 MHz to 1 GHz) Level III (direct 2kV/ Capacitive coupling clamp 1 KV) Level III (common mode 2 KV / residual current mode 1KV) Level III (10V rms: 0.15 MHz to 80 MHz) 0.4 V - Immunity to voltage dips and breaks acc. to IEC 1000-4-11 - Mains-borne and radiated emissions acc. to EN 55022 (EN 55011 Group 1) Fixing: Symmetrical DIN rail (EN 50022) Connection capacity - without ferrule - with ferrule Spring terminals, 2 terminals per connection point - flexible wire - rigid wire Casing material Weight : 17.5 mm casing Other information Non stocked, minimum order quantity 100 units. 1/14 30 % / 10 ms 60 % / 100 ms > 95 % / 5 s Class B 35 mm 2 x 2.5 mm2 2 x 1.5 mm2 1.5 mm2 2.5 mm2 Self-extinguishing 60 g 0.1s • 100h 0.1s • 100h 0.1s • 100h 0.1s • 100h 0.1s • 100h 0.1s • 100h 0.1s • 100h MBR1 MCR1 MHR1 MLR1 MUR4 MUR3 - MXR1 1 MURc3 - - - - - - 88 826 125 - 88 826 135 - 88 826 145 - 88 826 155 - 88 826 100 - 88 826 103 Mono-function Mono-function Bifunction Bifunction Multi-function Multi-function Multi-function B C H - Ht Li - L 8A 8A 8A 8A A - At - B - C - H - Ht Di - D - Ac - Bw 8A A - At - B - C - H - Ht Di - D - Ac - Bw 8A Ad - Ah - N - O - P Pt - TL - Tt - W 8A 2 88 826 503 88 826 185 - Function diagrams Function A Function H Function Li Function C Delay on energisation 1 relay Timing on energisation 1 relay Asymmetrical recycler 1 relay Pulse start Timing after impulse 1 timer U U R R U U T C R R T1 T2 T T Function At Function Ht Function D Function Bw Timing on energisation with memory 1 relay U Delay on energisation with memory 1 relay U Flip-flop 1 relay Pause start Pulse output (adjustable) 1 relay C C U R R R t1 t2 T = t1+t2 t1 t2 T = t1+t2 U C R T T T T Function B Fonction L Function Di Function Ac Timing on impulse one shot 1 relay Double temporisation 1 relais Démarrage par pause Flip-flop 1 relay Pulse start Timing after closing and opening of control contact 1 relay U U U U C R C R R T T T1 T2 R T MXR1 functions see page 1/10, 1/11 Dimensions Connections U 3,5 + Y1 Y1 A1 15 R 15 R A2 A2 16 15 16 18 Functions : A - At / H - Ht / B / C Di - D / Ac / BW / Ad - Ah - N - O - P Pt - TL - Tt - W 45 A1 Li L : 60 A1 5,5 Y1 To order, specify: Standard products 17,5 44 81 U + 1 Type 2 Part number Example: Chronos 2 Timers MUR1 88 826 105 1/15 T T 1 Chronos 2 electronic timers - 17.5 mm Solid state output ■ ■ ■ ■ ■ ■ Multi-function or mono-function Multi-range (7 ranges, available options) Multi-voltage Solid state output: 0.7 A - 250 V (0.5 A UL) Screw or spring terminals 1 LED status indicators Timing Technical specifications Types Timing Repetition accuracy (with constant parameters) ± 0.5 % (CEI 1812-1) Drift 1 - Temperature - Voltage Display precision according to IEC 1812-1 Minimum pulse duration - Typically (relay version) - Typically (solid state version) - Typically under load (relay version) Maximum reset time by de-energisation ± 0.05 % / °C ± 0.2 % / V ±10 % / 25 °C - Typically (relay version) - Typically (solid state version) Immunity to breaks in supply voltage: typically 100 ms 350 ms >10 ms 30 ms 50 ms 100 ms Part numbers and voltage 24 • 240 V a 50 • 60 Hz 24 • 240 V a c 50 • Hz Functions Nominal current Timing ranges (7 ranges) 1s - 10 s - 1 min - 10 min - 1 h - 10 h - 100 h General specifications Power supply Multi-voltage power supply Frequency Operating range Load factor Maximum power consumption Conforming to standards IEC 1812-1, EN 50081-1/2, EN 50082-1/2, LV directives (73/23/EEC + 93/68/EEC (CE marking) + EMC (89/336/EEC + IEC 669-2-3 (17.5 mm) Approvals UL - CSA - cUL pending Temperatures limits - use - stored Installation category (acc. to IEC 664-1) depending on version, see page 1/15 50/60 Hz 85 to 110 % Un (85 to 120 % Un for 12V AC/DC) 100 % 0.6 W 24V AC/DC 1.5 W 230V AC 32 VA 230V AC Output elements: Solid state output Rated power Derating Maximum admissible current Minimum breaking current Off-state leakage Voltage breaking capacity Maximum voltage drop at terminals Electrical life Mechanical life Breakdown voltage acc. to IEC 664, IEC 255-5 0.7 A AC/DC 20 °C (0,5A UL) 5 mA / °C 20 A ≤ 10 ms 10 mA < 5 mA 250V AC/VDC 3 fils 4V - 2 fils 8V 108 operations 108 operations 2.5 kV to 1 mA / 1 min. Creepage distance and clearance acc. to IEC 664-1 Degree of protection acc. to IEC 529 - terminal block - casing - front face (except Tk2R1) Vibration resistance acc. to IEC 68-2-6 Relative humidity acc. to IEC 68-2-3 without condensation Electromagnetic compatibility - Immunity to electrostatic discharges acc. to IEC 1000-42 - Immunity to electrostatic fields acc. to ENV 50140/204 (IEC 1000-4-3) - Immunity to rapid transient bursts acc. to IEC 1000-4-4 Display State displayed by 1 LED - Flashing green when on Green LED operation indicator Pulsing: - timer on, no timing in progress (except functions Di-D and Li-L) Flashing: - timing in progress Permanently lit: - Relay waiting, no timing in progress Input type - Volt-free contact - 3-wire PNP output control option maximum residual voltage: 0.4 V whatever the timer power supply - Immunity to shock waves on power supply acc. to IEC 1000-4-5 - Immunity to radiofrequency in common mode acc. to ENV - Immunity to voltage dips and breaks acc. to IEC 1000-4-11 0.4 V - Mains-borne and radiated emissions acc. to EN 55022 (EN 55011 Group 1) Fixing: Symmetrical DIN rail (EN 50022) Connection capacity - without ferrule - with ferrule Spring terminals, 2 terminals per connection point - flexible wire - rigid wire Casing material Weight : 17.5 mm casing Other information Non stocked, minimum order quantity 100 units. 1/16 -20 °C + 60 °C -30 °C + 60 °C Voltage surge category 4 kV / 3 IP 20 IP 40 IP 50 f = 10 • 55 Hz A = 0.35 mm 93 % Level III (Air 8 K / Contact 6 KV) Level III 10V/m: 80 MHz to 1 GHz) Level III (direct 2kV/ Capacitive coupling clamp 1 KV) Level III (common mode 2 KV / residual current mode 1KV) Level III (10V rms: 0.15 MHz to 80 MHz) 30 % / 10 ms 60 % / 100 ms > 95 % / 5 s Class B 35 mm 2 x 2.5 mm2 2 x 1.5 mm2 1.5 mm2 2.5 mm2 Self-extinguishing 60 g 0.1s • 100h MUS2 0.1s • 100h MAS5 0.1s • 100h MHS2 0.1s • 100h MLS2 88 826 004 - 88 826 014 88 826 044 - 88 826 054 - Multi-function A - At - B - C - H - Ht Di - D - Ac - Bw Mono-function A Mono-function H Bifunction Li - L 0.7 A 0.7 A 0.7 A 0.7 A 1 2 1 Function diagrams Function A Function H Function Li Function C Delay on energisation 1 relay Timing on energisation 1 relay Asymmetrical recycler 1 relay Pulse start Timing after impulse 1 timer U U R R U U C R T R T1 T2 T T ∞ Function At Function Ht Function D Function Bw Timing on energisation with memory 1 relay U Delay on energisation with memory 1 relay U Flip-flop 1 relay Pause start Pulse output (adjustable) 1 relay C R C R R t1 U U C t2 T = t1+t2 t1 t2 T = t1+t2 R T T T T Function B Function L Function Di Function Ac Timing on impulse one shot 1 relay Asymmetrical recycler 1 relay Pause start Flip-flop 1 relay Pulse start Timing after closing and opening of control contact 1 relay U U U U C R T T T1 T2 ∞ C R R R T Dimensions Connections U U U A1 A1 A1 ± A2 Y1 3,5 A2 17,5 44 Y1 MULTI Functions : A/H Y1 U 18 R Li L: A2 60 Y1 5,5 To order, specify: Standard products 1 Type 2 81 R 45 18 R A2 ± Part number Example: Chronos 2 Timers MUS2 88 826 004 1/17 T T Functions U : Supply R : Output or load relay T : Timing Function A: C (Y1) : Control contact : indefinite Function B: Delay on energisation Single timing cycle which begins on energisation. 1 relay The output changes state after timing. R Timing on impulse one shot On pulse (with constant supply) 1 relay After energisation; a pulse (≥ 50 ms) or a maintained control contact will cause the output to change state which reverts to the rest position at the end of timing. U T U C R T U 2 relays timed or 1 relay timed and 1 instantaneous N.B. : this process enables shortening or lengthening of a signal. R1/R2 C R1/R2 R2 INST 2 relays timed or 1 relay timed and 1 instantaneous T Function Ab: U T R2 Inst. Function Bw: Pulse output (adjustable) One-shot cycle 1 relay 1 The output changes states at the end of the set time T1, for a period T2. Both T1 and T2 independently adjustable. AOutput relay R (or the load) changes state, and remains in the changed-over state for the timing period, both when control contact C (Y1) closes and when it opens. U R T1 T2 U C R T T T T U Function Ac: C Timing after closing and opening of control contact After energisation, closure of the control contact causes the timing period T to commence and output relay R (or the load) changes state at the end of this interval. When contact C (Y1) opens, relay R resets after a second timing period T. . U Function C: C R T T Timing after impulse Delay OFF (with constant supply 1 relay After energisation, once the control contact is closed the output state changes. Timing will only begin on the re-opening of this control contact (one shot). Relay R returns to its initial position at the end of the timing period. U C 2 relays timed or 1 relay timed and 1 instantaneous R 2 relays timed or 1 relay timed and 1 instantaneous 1 relay R1/R2 T T R2 Inst. 2 relays timed or 1 relay timed and 1 instantaneous 1 relay T U R2 inst. T U Function D or Di: Flip-flop C R T T Repetitive cycle which switches the output alternately between the rest and operating position for equal time bases. T1 + T2 = T total Flashing single cycle by switch (not resettable) After power-up, pressing or holding down the switch starts timing. At the end of timing, the output is energised. At the end of this second timing, the output falls back to its initial value. R R1/R2 (not resettable) Function Ah : C C Function Ad : Delay on energisation by switch After power-up, pressing or holding down the switch starts timing. At the end of timing, the output is energised. The output will be reset the next time the switch is pressed or held down. U 1 relay U R T T Function D: the cycle begins with the output in rest position. Pause start. U R1/R2 T T U 2 relays timed or 1 relay timed and 1 instantaneous C R2 Inst. 1 relay R1/R2 R2 Inst. T T T T Function Di: the cycle begins with the output in the operating position. Pulse start. U R T T U R1/R2 2 relays timed or 1 relay timed and 1 instantaneous Function At: Timing on energisation with memory T T 2 Inst. 1 relay Provides a cumulative time for contact opening. The output changes states at the end of the set time. U Function H: Timing on energisation C Interval timer - one shot R t1 t2 T = t1+t2 U On energisation, the output changes state, remains in that state for the duration of timing and resets at the end of the single cycle. 1 relay U R T C R1/R2 2 relays timed or 1 relay timed and 1 instantaneous t1 t2 N.B. This is complementary to function A. U R1/R2 R2 Inst. 2 relays timed or 1 relay timed and 1 instantaneous T = t1+t2 1/10 T R2 Inst. Function Ht : Function P : Delay on energisation with memory Delayed fixed-length pulse 1 relay Timing begins on energisation. At the end of the timing period output relay R (or the load) changes state for a period of approx. 500 milliseconds. U Provides a cumulative time for contact opening. On energisation, the output changes state, remains in that state for the duration of timing and resets at the end of the single cycle. C R t1 t2 T = t1+t2 U R T P P = 500 ms U Function Pt : C Impulse counter (delay on) R1/R2 2 relays timed or 1 relay timed and 1 instantaneous t1 t2 Calculates the total opening time of a contact. At the end of timing, the output is energised for approximately 500 ms. R2 Inst. T = t1+t2 U C R t2 t1 T= t1+t2 P Function K: Delay on de-energisation - True delay OFF Function Q : 1 relay On energisation, the output changes state. On de-energisation timing commences and the output only returns to the reset condition after timing. At the end of timing, the output is not energised. It remains "open" (not conducting) and will only change state after the fixed time of Ti has elapsed. Dwell time selectable R T U R1 2 relays timed or 1 relay timed and 1 instantaneous Function L : Star-delta" U R2 U R T Ti 1 T Cyclic timing - Asymmetrical recycler Repetitive cycle comprising 2 independent adjustable time bases. Each time base corresponds alternately to a different output state. 1 relay Function T : Timing on energisation with memory U R a - energisation by control signal The timer sums the times for which the control contact is closed (C1). Reset is by the reset signal (C2) only. T1 T2 N.B. : The cycle starts with the output in the rest position. 2 relays timed or 1 relay timed and 1 instantaneous U R1/R2 T1 T2 b - energisation by supply voltage The timer sums the times for which the supply voltage (U) is on. Reset is by the reset signal (C2) only Cyclic timing - Asymmetrical recycler 1 relay U R Function T : T1 T2 N.B. : The cycle starts with the output in the operating position. After power-up, pressing or holding down the switch closes the relay. Pressing the switch a second time opens the relay. U U C R R1/R2 8 2 relays timed or 1 relay timed and 1 instantaneous Impulse relay T1 T2 Function N : Function Tt : "Safe-guard" At the first control pulse the output is energised. To complete the timing the interval between the two control pulses must be greater than the timing set. After power-up, pressing or holding down the switch closes the relay and starts timing. The relay opens at the end of timing or when the switch is pressed a second time. U C R T Function W : Function O : U C R T T T 1/11 U C R T t Timing after pulse on control contact After energisation, if the control contact opens it causes output relay R (or the load) to change state and timing to start. At the end of the timing period, relay R resets to its original state. "Delayed safe-guard". On energisation, a first timing sequence occurs and the output changes state. With the closing of the control contact, the output resets and the timing starts, with the output being activated after timing. For the timing to be completed, the interval between the closing of two control contacts must be greater than the timing set. Timed impulse relay U C R T 8 Repetitive cycle comprising 2 independent adjustable time bases. Each time base corresponds alternately to a different output state. 8 Function Li :