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Publication P/N 1100520

User Manual

400 Series

SDU 404 Safety Shutdown Unit, P/N 1006418
SDU 420 Safety Shutdown Unit, P/N 1500158

Summary of Contents for 1006418

Page 1: ...Publication P N 1100520 User Manual 400 Series SDU 404 Safety Shutdown Unit P N 1006418 SDU 420 Safety Shutdown Unit P N 1500158...

Page 2: ...ction 6 4 2 Analog Channels 6 4 2 1 Sensor Fault Detection 6 4 3 Pickup Channel 6 5 Shutdown Situations 7 5 1 From Overspeed 7 5 1 1 Shutdown Override 7 5 1 2 Indication 7 5 1 3 Acknowledge 7 5 2 From...

Page 3: ...cessories are used and that the installation meets all applicable rules and regulations Auto Maskin continuously upgrades its products and reserves the right to make changes and improvements without p...

Page 4: ...uary 2022 2 Ordering Information The Marine Pro covers a wide range of compatible products within both the 200 and 400 Series Please visit our website for more information http auto maskin com marine...

Page 5: ...nfig Amber Flashing when unacknowledged fault Steady lit when acknowledged fault MPU Amber Flashing when unacknowledged fault Steady lit when acknowledged fault Green Steady lit when MPU connected ACK...

Page 6: ...e switch input terminals 4 1 2 Short CIrcuit Detection When correctly wired and configured see Installation Manual this will be detected and indicated at the LED next to the switch input terminals 4 2...

Page 7: ...analog channels indicate a shutdown then the SDU will activate the common shutdown outputs 5 2 1 Shutdown Override Each channel may be configured to disregard the Shutdown Override input command 5 2...

Page 8: ...00 rpm Deactivates when the SDU senses that the engine has stopped OVERSPEED SHUTDOWN Activates for any overspeed shutdown Deactivates when engine is stopped 5 RPM and a configurable delay and overspe...

Page 9: ...peed Shutdown at 95 of the Nominal setpoint Pressing the Overspeed Test button again Automatic timeout after 5 minutes 7 2 Shutdown Override Connect a normally open NO switch with a 10 k ohm resistor...

Page 10: ...y shutdown override Can be used to override shutdown individually per channel similar to the normal shutdown override Connect a normally open NO switch across the two terminal inputs SDU 404 16 and 17...

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