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Summary of Contents for GESTRA SRL 63-a
- Page 1 Logic Unit SRL 63-a Original Installation Instructions 818588-04 E n g l i s h...
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Page 2: Table Of Contents
Electrical Connection Connecting the terminal strips ......................10 Note ..............................10 Attention ..............................10 Tools ..............................10 Wiring diagram of logic unit for monitoring SRL 63-a ................11 Basic Setting Factory setting ............................12 Start-up, Operation, Alarms and Testing SRL 63-a ............................12 – 14 Danger ..............................14... - Page 3 Contents – continued – Page Troubleshooting Fault finding list ...........................15 Decommissioning SRL 63-a ..............................15 Disposal SRL 63-a ..............................15...
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Page 4: Important Notes
Important Notes Usage for the intended purpose The logic unit SRL 63-a may be used in steam boiler plants only in conjunction with external low-level alarms or high-level alarms for monitoring the separate flushing of the connecting lines to the measuring pot. -
Page 5: Explanatory Notes
Explanatory Notes Scope of supply SRL 63-a 1 Logic unit for monitoring, in a field case for wall mounting 1 Installation manual Description For the installation of low-level limiters of “high-integrity design” in measuring pots mounted outside of the boiler, it is imperative that the periodic purging of the connecting lines to the boiler be monitored properly. -
Page 6: Function
Explanatory Notes – continued – Function – continued – The logic unit monitors the following times: Interval time: This is the time interval at which, depending on the mode (24h / 72h operation), the connecting lines have to be purged. Standby period: The purging process must be initiated during this time. -
Page 7: Technical Data
Technical Data SRL 63-a Inputs 5 volt-free contacts from the limit switches of the valves 1 volt-free contact from a second SRL which may be mounted at the same boiler (interlock) 1 volt-free contact from the low-level limiter Outputs 2 volt-free change-over contacts each for bypassing/deactivating the safety circuit Thermal current I : 4 A, switching capacity acc. -
Page 8: Name Plate / Marking
Technical Data – continued – Name plate / marking – Designation SRL 63-a Mains voltage / Safety note – Power consumption / – 230 V 50 / 60 Hz 26 W IP 65 Protection – Range of application Tamb = 55 °C ( 131°F) Safety circuit –... -
Page 9: Installation
Installation Installing the logic unit SRL 63-a The case of the logic unit is intended for wall mounting; it should be installed near the external measuring pot. Functional Elements SRL 63-a Interval: Control panel Remaining: Fig. 4... -
Page 10: Electrical Connection
Electrical Connection Connecting the terminal strips Connect the terminal strips as shown in the wiring diagram. The measuring pot is provided with three shut-off valves. Valves D and E are each equipped with two limit switches, for the “OPEN” position (D1 / E1) and for the “CLOSED” position (D2 / E2). The drain valve F is only fitted with one limit switch, for the “CLOSED”... -
Page 11: Wiring Diagram Of Logic Unit For Monitoring Srl 63-A
Electrical Connection – continued – Wiring diagram of logic unit for monitoring SRL 63-a Standby Interval: 24 h Bypass Remaining: 8:27 h Shutdown Attention External voltage! Burner safety circuit NRS 1-7 Connection for low-level limiter Attention External voltage! Burner safety circuit or... -
Page 12: Basic Setting
Basic Setting Factory setting Logic unit SRL 63-a The logic unit for monitoring is delivered with the following factory settings: Interval time: 24 hours Standby period: 1 hour Purging time: 5 minutes Voltage of safety circuit: 230 V AC Start-up, Operation, Alarms and Testing... - Page 13 Start-up, Operation, Alarms and Testing – continued – SRL 63-a – continued – Operation Interval time is running. No pilot lamp is alight. Trouble-free operation Interval time expires and Green pilot lamp “Standby” is Standby period is running. begins again.
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Page 14: Danger
Cursor picture in the PLC display Danger The terminal strips of the logic unit SRL 63-a are electrically live during operation! This presents the danger of electric shock. Before working on the terminal strips (assembly, disassembly, connecting the cables),... - Page 15 Remedy: Switch on the mains voltage and resume the purging process. Decommissioning SRL 63-a Cut off the power supply to the logic unit, undo all the electrical connections and pull the cables out of the glands. Remove the logic unit.
- Page 16 For your notes...
- Page 17 For your notes...
- Page 18 For your notes...
- Page 19 For your notes...
- Page 20 Agencies all over the world: www.gestra.de GESTRA AG Münchener Straße 77 28215 Bremen Germany Telefon +49 421 3503-0 Telefax +49 421 3503-393 E-mail info@de.gestra.com www.gestra.de 818588-04/06-2016cm (808615-07) · GESTRA AG · Bremen · Printed in Germany...
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