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D

IESEL ENGINE 

 

C

ONTROL 

U

NIT

  

 
 
 
 
 

DCU 205 

 

 
 
 

 

- USER’S MANUAL - 

 
 
 
 
 
 

 

 

Skjetten, Norway 

www.auto-maskin.com 

Summary of Contents for DCU 205

Page 1: ...DIESEL ENGINE CONTROL UNIT DCU 205 USER S MANUAL Skjetten Norway www auto maskin com ...

Page 2: ...BY BUTTON 7 4 4 MANUAL BUTTON 8 4 5 RESET BUTTON 8 4 6 SIREN OFF BUTTON 8 4 7 LAMP TEST BUTTON 8 4 8 HOUR COUNTER 9 5 ALARM CENTRE 10 5 1 IN GENERAL 10 5 2 NOT USED ALARMS 11 6 SHUTDOWN CENTRE 12 6 1 IN GENERAL 12 6 2 EMERGENCY AND HARBOUR GENERATOR SETS 13 6 3 OVERSPEED ADJUSTMENT 13 7 ADJUSTMENTS AND TIMER SETTINGS 14 7 1 FRONTPANEL TEXT LABELS 14 8 REMOTE CONTROL 15 8 1 MANUAL START AND STOP 15...

Page 3: ...ated Approved by Det norske Veritas DnV certificate no A 6246 Lloyd s Register of Shipping certificate no 96 00095 Copyright Auto Maskin A S 1994 2013 Information given in this specification may change without prior notice This document should not be copied without permission from Auto Maskin A S Description DCU 205 User s Manual English Revision January 2013 User s Manual order no 05012 ...

Page 4: ... lamp test All inputs are electrically isolated with optocouplers and the relay outputs can withstand 2 ampère load The unit is built for console mounting and requires little cabinet depth It is delivered with a separate wire terminal unit which should be mounted in the cabinet The cable between these units has snap on connectors which ensure quick and easy mounting and servicing The unit can be p...

Page 5: ...ront cabinet protection IP55 Wire terminal card Overall dimensions 40 x 211 x 83 mm HxWxD Cable length standard 1 5 meters Steel enclosure version Overall dimensions 300 x 300 x 140mm HxWxD Total weight DCU 205 and enclosure 4300 g Degree of protection IP44 2 2 Fuses A total of 3 automatic resettable fuses are built into the unit If the fuse breaks it will reset itself in about 20 seconds Fuse Pur...

Page 6: ...the four sections Alarm Shutdown Function and Status Get Status from the Status section The Alarm section with replaceable textlabels and one spare field The Shutdown section indicates conditions that will stop the engine Select mode of operation in the Function section The Hour meter indicates engine running hours ...

Page 7: ...ted on the back panel of the Control Unit For further instructions please see chapter 5 2 3 Shutdown functions that are not in use should not be connected 4 Verify all connections 5 Check that the voltage supply is correct positive 24VDC on terminal 1 and 39 negative on terminal 2 and 40 See chapter 10 and 11 6 Make the necessary adjustments as noted under chapter 7 3 1 Control Indicator Verify wi...

Page 8: ... is enough to activate the stop solenoid which is then activated for approx 50 seconds The voltage on terminal no 10 used for run solenoids or as feed voltage for electronic regulators disappears at the same time The lamp in the STOP button will light during the stop holding time the time terminal 9 has voltage or if the engine has a DELAYED STOP command in STANDBY mode 4 3 Standby button Standby ...

Page 9: ...BY and START DISABLED lamp does NOT light up These terminals can be used as an indication that the engine is ready for operation 4 4 Manual button This button is used to get the system out of STANDBY and into MANUAL Once this is done the lamp in the MANUAL area will light up and the automatic start and delayed stop inputs will be blocked 4 5 Reset button The RESET button is used to reset all alarm...

Page 10: ...ng hours and runs when the RUNNING lamp is on This is indicated by the blinking hour glass symbol When the engine is stopped the hour glass lamp remains visible but does not blink The meter has 1 10 of an hour resolution It counts up to 99 999 9 hours and can only be reset by the supplier ...

Page 11: ...ng but remain lit This indicates that the alarm has been acknowledged but is still present The light turns off when the alarm actually disappears Supply voltage low Alarm is given if the supply voltage drops below 23 5V Interlocked in 60 sec and while starting Failed automatic start After 3 failed start attempts AUTOMATIC START FAILED and COMMON ALARM will appear Speed sensor failure If the alarm ...

Page 12: ...ms Alarms that are not in use must be overridden by switching the DIP switches located on the Control Unit s back panel to the Override position Otherwise these inputs will give an alarm DIP switch no Wire terminal Alarm Up Override Down Normal 1 12 LUB OIL PRESS LOW 2 13 LUB OIL TEMP HIGH 3 14 COOLING WATER TEMP HIGH 4 15 COOLING WATER LEVEL LOW 5 16 FUEL OIL LEAKAGE 6 17 SPARE Table 5 Overriding...

Page 13: ...rm lamp and start the siren The siren can be silenced by pressing the Siren Off button located on the front panel without resetting the alarm The shutdown sequence is as follows The SHUTDOWN alarm output is activated The Emergency Stop system output wire terminal 11 is activated OVERSPEED only The stop solenoid is activated by applying voltage to terminal 9 and the engine stops The solenoid is act...

Page 14: ... ON Disabled MANUAL Don t care Enabled Table 6 Disabling the Shutdown Functions in Standby mode When shutdown function DISABLED is selected the three lamps LUB OIL LOW COOLING WATER TEMP HIGH and SPARE will flash simultaneously every 3 seconds to indicate and remind of this particular selection 6 3 Overspeed adjustment The Control Unit activates alarm and shutdown when it detects engine overspeed ...

Page 15: ...ed adjustment Stop solenoid holding time 50 sec Not adjustable Delay before disconnecting generator breaker 5 180 30 sec Adjustable from back panel Cooling time 5 180 30 sec Adjustable from back panel 0 20 mA output for external rev counter 2200 3000 20mA 2500 rev min Adjustable from back panel Monitoring delay 15 sec Not adjustable Alarms delay 1 5 sec Not adjustable Shutdown delay 1 5 sec Not ad...

Page 16: ...t is connected to terminals no 18 19 Remote Stop is connected to terminals no 18 20 Remember a brief press on the stop button is enough to stop the engine 8 2 Automatic start delayed stop When the Control Unit is set in the STANDBY mode an internal start stop program can be activated by means of external signals Closed contact between terminals no 21 22 activates start and closed contact between t...

Page 17: ...e should be connection between terminals 2 negative and 5 on a stopped engine 4 The SPEED SENSOR FAILURE alarm comes on while the engine is running 1 Lost connection to terminal 3 and or 4 2 Signal too weak 1 Check relevant cables 2 The signal must be at least 2 0VAC Adjust or change tachogenerator 5 The common alarm relay is activated without any indication on the control panel 1 Blown fuse 2 Con...

Page 18: ...er detected RUN signal 18 19 In Remote START button 18 20 In Remote STOP button 21 22 In Input for automatic start when in STANDBY mode e g blackout signal from main switchboard 21 23 In Input for delayed stop e g signal from load dependent start stop equipment 24 25 26 Out Voltage free change over contact for Common alarm 24 25 is NC 25 26 is NO Relay deactivates in case of Common alarm 27 28 29 ...

Page 19: ...DCU 205 User s Manual 18 The diesel engine s terminal box must include auxiliary relays for start and stop see drawing no 1205 1 page 19 The DCU 205 unit Wire terminal connector ...

Page 20: ...DCU 205 User s Manual 19 11 SCHEMATIC DIAGRAM Figure 11 DCU 205 wire connection diagram ...

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