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 start attempts. Adjustable duration of start attempts and pulse between start attempts. Failure to start causes an output signal. Housing Type/function Output Power supply 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 Start attempt/alarm, plug-in time relay with 2 separate output relays. Used when starting combustion engines connected to generators. May operate with 1-6 selectable Type Selection Time Specifications Time ranges Duration of start attempts, T1 Duration of pause, T2 Time range accuracy Repeatibility devation Time variation Within rated power supply and ambient temperature Reset Time and/or relay Output Specifications 1.5 to 30 s 3 to 60 s 0 to +10% max. min. actual time min. set time 1% 0.1%/V 0.2%/C Power supply interruption min. 100 ms Supply Specifications Power supply DC types Rated operational voltage through pins 2 & 10 712 Installation cat. III (IEC 60664) Output Basic electrical insulation Contact ratings(AgCdO) Resistive loads AC 1 DC 1 or Smal inductive loads AC 15 DC 13 Mechanical life Electrical life AC1 Operating frequency Insulation voltages Rated insulation voltage Rated transient protection volt. 2 x SPDT 250 VAC (rms) (contact/ elec., contact/contact) (micro gap) 10 A/250 VAC (2500 VA) 1 A/250 VDC (250 W) 10 A/25 VDC (250 W) 2.5 A/230 VAC 5 A/24 VDC 30 x 106 operations 2.5 x 105 operations (at max. load) 7200 operations/h 2.0 kVAC (rms) (cont./elec.) 4 kV (1.2/50 s) (cont./elec.) (IEC 60664) 12 to 24 VDC -25/+21% (pin 2 pos.) Rated insulation voltage None Rated transient protection volt. 800 kV (1.2/50 s) Consumption 125 mA Specifications are subject to change without notice (25.10.99) 1 S 109 General Specifications Power ON delay Power OFF delay Indication for Output 1 ON Output 2 ON Environment Degree of protection Pollution degree Operating temperature Storage temperature Weight Approvals Mode of Operation 200 ms 100 ms LED, red LED, red Start function The power supply is applied. Relay A operates immediately. After expiration of the set time period (T1), relay A releases for the set time period (T2). IP 20 B 2 (IEC 60664) -20 to +50C (-4 to +122F) -50 to +85C (-58 to +185F) 125 g UL, CSA The cycle with active periods and pause periods continues from 1 to 6 times as set on the DIP-switch or until power supply is interrupted by generator start. Time Setting Alarm function Relay B changes to operating position after conclusion of the last failed start attempt (e.g. 2 set start attempts) and remains in this position until power supply is interrupted. Wiring Diagram Time setting Upper knob on housing: Duration of start attempts (T1): 1.5 to 30 s. 1 2 3 4 5 6 ON OFF Lower knob on housing: Duration of pause between start attempts (T2): 3 to 60 s. If more than one DIP-switch is ON, the lowest is given priority. Number of start attempts 1 to 6 attempts, set on DIPswitches. DIP-switch 1 ON: 1 attempt. DIP-switch 2 ON: 2 attempts. Etc. DIP-switches for selecting function are placed behind a small removable front plate on the time relay. A B Start Alarm Power supply Operation Diagram Power supply Generator Start Relay A ON, pins 1 & 3 Relay B ON, pins 9 & 11 Accessories Sockets Hold down spring Mounting rack Socket covers Potentiometer lock Front mounting bezel S 411 HF SM 13 BB 4 PL 2 FRS 2 For further information refer to "Accessories". 2 Specifications are subject to change without notice (25.10.99)