Timers Start Attempt/Alarm Type S 109 • Automatic start • No. of start attempts: 1-6 • Duration of attempts: 1.5-30 s • Pause between attempts: 3-60 s • Repeatability deviation: ≤ 1% • Separate relay contact for activation of start relay • Separate relay for alarm if selected no. of start attempts fails • Output: 2 x 10A SPDT relay • Plug-in type module • S -housing • LED-indication for both relays on • DC power supply Product Description Ordering Key S 109 256 712 Housing Start attempt/alarm, plug-in start attempts. Adjustable Type/function time relay with 2 separate out- duration of start attempts and Output put relays. Used when start- pulse between start attempts. Power supply ing combustion engines con- Failure to start causes an out- nected to generators. May put signal. operate with 1-6 selectable Type Selection Plug Output Time range Supply: 9-29 VDC Circular 2 x SPDT Start attempts: 1.5 to 30 s Pause: 3 to 60 s S 109 256 712 Time Specifications Output Specifications Time ranges Output 2 x SPDT Duration of start attempts, T1 1.5 to 30 s Basic electrical insulation 250 VAC (rms) (contact/ Duration of pause, T2 3 to 60 s elec., contact/contact) Time range accuracy 0 to +10% max. Contact ratings(AgCdO) μ (micro gap) min. actual time ≤ min. Resistive loads AC 1 10 A/250 VAC (2500 VA) set time DC 1 1 A/250 VDC (250 W) or 10 A/25 VDC (250 W) Repeatibility devation ≤ 1% Smal inductive loads AC 15 2.5 A/230 VAC Time variation DC 13 5 A/24 VDC Within rated power supply ≤ 0.1%/V 6 Mechanical life‡30 x 10 operations and ambient temperature ≤ 0.2%/°C Electrical life Reset Power supply interruption min. 5 AC1‡2.5 x 10 operations Time and/or relay 100 ms (at max. load) Operating frequency ≤ 7200 operations/h Insulation voltages Rated insulation voltage 2.0 kVAC (rms) (cont./elec.) Supply Specifications Rated transient protection volt. 4 kV (1.2/50 μs) (cont./elec.) (IEC 60664) Power supply DC types Installation cat. III (IEC 60664) Rated operational voltage through pins 2 & 10 712 12 to 24 VDC -25/+21% (pin 2 pos.) Rated insulation voltage None Rated transient protection volt. 800 kV (1.2/50 μs) Consumption 125 mA Specifications are subject to change without notice (25.10.99) 1 S 109 General Specifications Mode of Operation Alarm function Power ON delay ≤ 200 ms Start function Relay B changes to operating The power supply is applied. Power OFF delay‡100 ms position after conclusion of Relay A operates immediately. Indication for the last failed start attempt After expiration of the set time Output 1 ON LED, red (e.g. 2 set start attempts) and period (T1), relay A releases Output 2 ON LED, red remains in this position until for the set time period (T2). Environment power supply is interrupted. Degree of protection IP 20 B The cycle with active periods Pollution degree 2 (IEC 60664) and pause periods continues Operating temperature -20° to +50°C (-4° to +122°F) from 1 to 6 times as set on the Storage temperature -50° to +85°C (-58° to +185°F) DIP-switch or until power sup- ply is interrupted by generator Weight 125 g start. Approvals UL, CSA Time Setting Wiring Diagram Time setting Upper knob on housing: 1 2 3 4 5 6 Duration of start attempts ON (T1): 1.5 to 30 s. OFF A B Lower knob on housing: If more than one DIP-switch Start Duration of pause between is ON, the lowest is given pri- Alarm start attempts (T2): 3 to 60 s. ority. Number of start attempts DIP-switches for selecting 1 to 6 attempts, set on DIP- function are placed behind a Power supply switches. small removable front plate DIP-switch 1 ON: 1 attempt. on the time relay. DIP-switch 2 ON: 2 attempts. Etc. Operation Diagram Power supply Generator Start Relay A ON, pins 1 & 3 Relay B ON, pins 9 & 11 Accessories Sockets◊ S 411 Hold down spring◊ HF Mounting rack SM 13 Socket covers BB 4 Potentiometer lock PL 2 Front mounting bezel FRS 2 For further information refer to "Accessories". 2 Specifications are subject to change without notice (25.10.99)