Unicont SPb DAC-109 User Manual Download Page 1

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Unicont SPb Ltd

Digital-Analogue Converter

DAC-109

Technical Documentation

(109-10-23032012)

St. Petersburg

2012

Summary of Contents for DAC-109

Page 1: ...Unicont SPb Ltd Digital Analogue Converter DAC 109 Technical Documentation 109 10 23032012 St Petersburg 2012...

Page 2: ...SPECIFICATIONS 3 4 INSTALLATION AND CONNECTION OF THE CONVERTER 5 5 VOLTAGE SELECTION 10 6 PRINCIPLE OF CONVERTER OPERATION 13 7 DEBUG TOOLS AND DIAGNOSTIC AIDS 18 8 TYPICAL DEFECTS AND METHODS OF TRO...

Page 3: ...voltage 18 32 VDC Power supply protection of the converter against polarity reversal overvoltage overload Output voltage for synchro repeaters Reference 120 VAC Reference 400 VAC Output voltage for st...

Page 4: ...12 4 3 Warnings Audible warning in case of missing NMEA signal in the basic channel Visual warning in case of missing NMEA signal in the basic channel at LCD Output for connection of an external alar...

Page 5: ...see section 6 pay attention to setting the correct type of connected repeaters e Power off the DAC 109 f Lead coupling cables from the external devices and power source Connect cables to removable te...

Page 6: ...Unicont SPb Ltd Technical Documentation DAC 109 Page 6 Figure 1 Outline drawing of the converter...

Page 7: ...and Synchro or Step consumers to DAC 109 A 0 IN_1 NMEA B A 0 IN_2 NMEA B RELAY_NO IN_18 32V A 0 REMOTE_OUT 0 B A 0 REMOTE_IN U ref F1 F2 U fase F3 Alarm Unit AU 106 Main NMEA Source Backup NMEA Source...

Page 8: ...1 S3 S2 G IN 18 32 V 18 32 VDC Fuse Power on off Figure 4 The diagram of step consumers connection to DAC 109 with common plus A 0 IN_1 NMEA B A 0 IN_2 NMEA B RELAY_NO IN_18 32V A 0 REMOTE_OUT 0 B A 0...

Page 9: ...Unicont SPb Ltd Technical Documentation DAC 109 Page 9 Figure 6 DAC 109 block diagram IN_x NMEA IN_x NMEA REMOTE_OUT REMOTE_OUT Figure 7 Connection diagram of interfaces RS 232 and RS 422 485...

Page 10: ...applicable settings in the device s menu method 2 Example It is necessary to power the synchro type repeater with excitation voltage 100 V and maximum synchronizing voltage 50 V 1 Select the wiring di...

Page 11: ...s to the P12 and user shall connect them Wiring diagrams for different levels of output voltages Table 1 The choose of synchro peripheries voltage level The chart of bridges installation on the termin...

Page 12: ...35 VAC Ref 0 35 VAC Phase 35 75 VAC 4 3 2 1 Wires P21 U U 2 Uf GND U U 2 P12 NC Ref 35 75 VAC Phase 35 75 VAC 4 3 2 1 Wires P21 U U 2 Uf GND U U 2 P12 NC Ref 75 110 VAC Phase 35 75 VAC Ref 0 35 VAC P...

Page 13: ...mode 1 Accepted value of course from the NMEA source e g digital gyrocompass 2 Current value of course at the receivers of analogue signal for example at the repeaters connected to DAC 109 In this mod...

Page 14: ...r value and its storing in the permanent memory of the converter is performed by pressing the key Enter The settings of the converter which may be changed and their purpose are listed below Frequency...

Page 15: ...m verification On Off Upon setting the parameter CRC Checking to On the converter verifies the checksum of incoming NMEA sentences If the checksum of the sentence does not match the calculated checksu...

Page 16: ...arm System Several types of warning are foreseen in the DAC 109 absence of data at the main channel absence of data at the reserve channel absence of data at the main and reserve channel absence of co...

Page 17: ...automatically shuts the signal conditioner to avoid damage to device circuits and connected equipment Herewith the message appears Overload protection In order to restart the device the cause of unit...

Page 18: ...hanges of digital course received from the signal sources NMEA 0183 6 5 Principle of Operation of the Converter The converter accepts the digital value of course from the sources of signal NMEA 0183 a...

Page 19: ...g the converter and analogue repeaters connected to it do not forget to switch off the mode of imitation of the gyrocompass 7 2 Imitation of Cyclical Turn of the Ship The second mode which is necessar...

Page 20: ...eater the oxides on the connecting terminals weak contacts tighten and sold joints Repeater card rotates choppy not uniformly Incorrect settings of the reference and phase voltage of the synchro rotat...

Page 21: ...ircuit radars gyrocompass etc do not trace or do not correctly trace the signal from the course translator Analog digital receiver does not receive or receives incorrectly the signal from the transduc...

Page 22: ...condition or has a damaged body and other causes beyond the manufacturer s control 4 If self made electrical devices were used 5 If there was an attempt to repair the unit by a person who is not an au...

Page 23: ...number was manufactured and accepted in accordance with the regulatory requirements of the state standards and applicable technical documentation and is suitable for operation Quality control represe...