LMMT
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Type: LMMT Multifunction, Multi-voltage Timer Terminal Protection to IP20 *NEW* 17.5mm DIN rail housing 7 Selectable functions (3 Supply Initiated, 4 Switch Initiated) 7 Selectable time ranges (0.1 seconds – 100 hours) Fine adjustment of selected time range LED warning indication if function is changed whilst powered Switch initiated functions ideal for use in Watchdog circuits Multi-voltage input (12 – 230V AC/DC) 1 x SPDT relay output 8A Green LED indication for supply / timing status Red LED indication for relay status Conforms to IEC 61812 FUNCTION DIAGRAMS TECHNICAL SPECIFICATION Supply voltage U (A1, A2): Frequency range: Supply variation: Overvoltage category: Rated impulse withstand voltage: Power consumption (max.): AC: DC: Timing functions (7): Supply initiated: “Function” Symbol explanation: Symbol DO IN RF DOb DN INa INb Function1 Delay On Operate Interval Symmetrical Recycling (Off/On) Delay On Delay Off Interval* Interval Triggered from: Supply (A1/A2) Supply (A1/A2) Supply (A1/A2) Switch (A1/B1) Switch (A1/B1) Switch (A1/B1) Switch (A1/B1) * This function is non-retriggerable Installation work must be carried out by qualified personnel. BEFORE INSTALLATION, ISOLATE THE SUPPLY. Connect the unit as required. Set the “Function” selector to the required position1. Set the “Range” to the required position (depending on whether seconds, minutes or hours are required), then set the “Set %” adjustment as required. The “Set %” is a % of the selected range, so 60% of the 1 – 10 hour range will give 6 hours. Reset time: Accuracy: Adjustment accuracy: Repeat accuracy: Drift with temperature: Drift with voltage: Apply power and the green LED will illuminate or start flashing depending on Function selected. If a Switch initiated function is selected, the LED will begin flashing upon closing of the external input. The red relay LED will illuminate to indicate the relay is in the energised state. Volt Free Contact, Open Collector Yes, between B1 and A2 (i.e. LED, Relay, Lamp) >75% of voltage present between A1 and A2 (auto-set) AC: 60mS DC: 40mS (B1 terminal unloaded) 10 Hz (with 50:50 duty cycle) 10m (between Timer and external switching device) Power on indication / Timing2: Relay status Ambient temp: Relative humidity: Output (15, 16, 18): Output rating: SPDT relay AC1 AC15 DC1 ≥ 150,000 ops at rated load 2kV AC (rms) IEC 60947-1 4kV (1.2/50µS) IEC 60664 Electrical life: Dielectric voltage: Rated impulse withstand voltage: Housing: Weight: Mounting option: Terminal conductor size Approvals: Conforms to IEC 61812. CE, C-tick and RoHS Compliant. EMC: Immunity: EN 61000-6-2 (EN 61000-4-3 10V/m 80MHz - 2.7GHz) Emissions: EN 61000-6-4 If the “Function” selector is changed whilst the power is applied, the relay will remain in its current state and the green LED will flash at a faster rate. Power must be removed and re-applied for the new Function to operate. 2 In accordance with IEC 61812, the green LED is permitted to extinguish during a voltage dip or momentary interruption of the power supply providing the state of the output relay does not change. The dip / interruption duration and levels are defined in the product standard. Example of external loads that can be connected to the trigger input simultaneously. SETTING DETAILS 1. Power supply status / Timing (Green) LED 2. Relay output status (Red) LED 3. “Set %” adjustment 4. Time delay “Range” selector 5. Timing “Function” selector Insert screwdriver to release clips CONNECTION DIAGRAM Orange flame retardant UL94 ≈ 60g On to 35mm symmetric DIN rail to BS EN 60715 or direct surface mounting via 2 x M3.5 or 4BA screws using the black clips provided on the rear of the unit. ≤ 2 x 2.5mm2 solid or stranded External trigger input (A1 > B1): External loading: Trigger threshold: Minimum trigger time: Maximum input frequency: Maximum cable length: Applying power. • Delay On (DO), Interval (IN), Symmetrical Recycling Off/On (RF) Delay On (DOb), Delay Off (DN), Interval (Trailing) (INa), Interval (Leading) (INb) Seconds: Minutes: Hours: 0.1 – 1 0.1 – 1 0.1 – 1 1 – 10 1 – 10 1 – 10 10 - 100 100mS ± 1% of maximum full scale < 5% of maximum full scale ± 0.5% at constant conditions (IEC 61812) ± 0.05% / °C ± 0.2% / V Switch initiated: Withdraw clips fully when surface mounting Broyce Control Ltd., Pool Street, Wolverhampton, West Midlands WV2 4HN. England Tel: +44 (0) 1902 773746 Fax: +44 (0) 1902 420639 Email: sales@broycecontrol.com Web: www.broycecontrol.com The Information provided in this literature is believed to be accurate (subject to change without prior notice); however, use