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Summary of Contents for Spector GESTRA SRL 6-40 a
- Page 1 Logic Unit SRL 6-40 a Original Installation Instructions 818957-04 E n g l i s h...
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Page 2: Table Of Contents
Contents Page Important Notes Usage for the intended purpose ......................4 Safety note ............................. 4 ATEX (Atmosphère Explosible) .........................4 Note on the Declaration of Conformity / Declaration by the Manufacturer ..........4 Explanatory Notes Scope of supply ............................5 Description .............................5 Function ............................. 6-7 Equipment approved for operation with logic unit SRL 6-40 ..............8 Technical Data SRL 6-40 a..............................9... - Page 3 Contents – continued – Page Start, Operation, Alarm and Test Switching equipment on ........................16 Interval time ............................16 Standby time ............................16 Purging time ............................17 Purging ............................17-18 Stop ..............................18 Special function ............................18 Test ..............................19 Monitoring ............................19 Power failure, restoration of power supply ....................19 Settings Start window ............................20...
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Page 4: Important Notes
Important Notes Usage for the intended purpose Use the logit unit SRL 6-40 only in conjunction with external low-water (LW) level limiters or high-water (HW) alarms for monitoring the independent purging process of the connecting lines for the measuring pot. Safety note The equipment must only be installed and commissioned by qualified and competent staff. -
Page 5: Explanatory Notes
Explanatory Notes Scope of supply SRL 6-40 a 1 Logic unit in field case for wall mounting 1 Installation & operating manual Description If the LW / HW level electrodes are installed in external measuring pots, the periodic purging process of the connecting lines is imperative. -
Page 6: Function
Explanatory Notes – continued – Function Fig. 1 shows a water level limiting system using a level electrode installed inside the boiler and a second electrode installed in an external level pot. However it is also possible to install 2 external level electrodes NRG 1x-4x, 2 logic units SRL 6-40, 1 level switch NRS 1-40.1, NRS 1-40.2. - Page 7 Explanatory Notes – continued – Function – continued – If the purging time (5 min.) is exceeded, the logic unit sends the command “Open safety circuit” and “Evaluate limiter signal of LW level electrode 1 (2)” to the control unit. The command will only be cancelled when the purging process is successfully finished.
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Page 8: Equipment Approved For Operation With Logic Unit Srl 6-40
Explanatory Notes – continued – Equipment approved for operation with logic unit SRL 6-40 Water level limiter (low water), consisting of Level electrode NRG 1x-4x, control unit NRS 1-40.1 High water level alarm, consisting of Level electrode NRG 1x-41, control unit NRS 1-40.2... -
Page 9: Technical Data
Technical Data SRL 6-40 a Interface Interface for CAN bus to ISO 11898, CANopen protocol Ethernet (RJ 45) for remote operation (optional) Supply voltage 24 VDC SELV (safety extra low voltage) + 20 % / – 15 % Inputs 1 four-channel digital input terminal DC 24 V 1 two-channel digital input terminal DC 24 V for 5 volt-free contacts of the limit switches mounted in valves Outputs... -
Page 10: Name Plate / Marking
Technical Data – continued – Name plate / Marking SRL 6-40a 1 Überwachungs- Equipment Betriebsanleitung logik beachten designation Safety See installation Mains voltage/ note 24V DC 10 W IP 65 instructions Protection Voir instructions de Tamb = 50 °C ( 122°F) montage CAN bus In / Out : CAN - Bus... -
Page 11: Dimensions
Technical Data – continued – Dimensions t = 165 Fig. 3... -
Page 12: Installation
Installation Installing logic unit SRL 6-40 – 1 The enclosure of the logic unit is designed for wall mounting and should be installed close to the external level pot. The four fixing holes are freely accessible after removing the upper part of the enclosure. -
Page 13: Can Bus Voltage Supply
Electrical Connection – continued – CAN bus voltage supply To ensure the troublefree operation of the CAN bus system make sure that the voltage supply is sufficient. If the logic unit SRL 6-40 is used, a separate stabilized safety power supply unit (e. - Page 14 Electrical Connection – continued – Wiring diagram for logic unit SRL 6-40 a – continued – Wiring Stand-by time Stop running (contact (contact 23/24 13/14 closed) closed) External signals Two-channel relay output terminal AC 230 V, DC 30 V, 2 make contacts, CAN bus CAN bus volt-free, max.
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Page 15: Setting The Control Units
Setting the Control Units Control units NRS 1-40.1, NRS 1-40.2 Please configure the control units NRS 1-40.1, NRS 1-40.2 as specified in the following tables: Control unit NRS 1-40.1 Toggle switch, white Code switch E Limiting function Water level Logic unit LW 1 SRL 6-40 outside... -
Page 16: Start, Operation, Alarm And Test
Start, Operation, Alarm and Test Switching equipment on The interval time starts running once the system is switched on. The interval time can be synchronized any time by closing one of the connecting valves (E or D), which means that the purging time starts running and the interval time is reset to its initial value (e. g. 24 h or 72 h etc.). -
Page 17: Purging Time
Start, Operation, Alarm and Test – continued – Purging time The purging time is indicated by the flashing text line and the remaining purging time is shown. The logic units informs the control unit NRS 1-40.1, NRS 1-40.2 via CAN bus that the purging process has started. During purging the control unit NRS 1-40.1, NRS 1-40.2 ignores the signal from the level electrode. -
Page 18: Stop
Start, Operation, Alarm and Test – continued – Purging – continued – The required sequence of operations are indicated by text or symbols shown on the screen (open / close; / ). The purging process is finished when all valves signal that they are in their initial positions. Specify the type of installation (steam boiler or hot-water plant) when entering the settings. -
Page 19: Test
Start, Operation, Alarm and Test – continued – Test Checking the functional chain Press button “TEST” on the screen of the logic unit to start the purging time outside the interval time. Hold down the button for at least 3 sec. The beginning of the TEST run is indicated by the flashing text messages “TEST”... -
Page 20: Settings
Settings Start window Press button in the start window to open the following window: Press touch screen buttons to change the following settings: Brightness: The setting “Dark” increases the service life of the backlight considerably! Date / time: Here you can set the system time. Additional operating windows will appear. -
Page 21: Language
Settings – continued – Language Language: German or English = German = English IP address IP address: For remote operation (optional) If you want to have remote access to the equipment via ethernet, change the IP address here. Touch the field that you want to modify. : decrements the entry :... -
Page 22: Setup
Settings – continued – Setup In the window “Settings” press button to open the window with the SRL specific settings. Adjusted times: Interval time Standby time Control unit with which the SRL communicates. Number of level electrode that is monitored. The equipment automatically ascertains the associated ID. -
Page 23: Setting The Control Unit, Number Of Level Electrode And Type Of Installation
Settings – continued – Setting the control unit, number of level electrode and type of installation After you have entered your password (3503) you can change the SRL specific settings. Here you can select the control unit that shall monitor the level electrode. -
Page 24: Messages
Messages Setting the control unit, number of level electrode and type of installation Press button in the start window to open the following window: This window shows all current messages with their time stamps. To view a box that explains the message select the message and press button The following status messages may be indicated:... -
Page 25: Decommissioning Procedure And Disposal
Decommissioning Procedure and Disposal Decommissioning Unplug the male and female connectors of the CAN bus line and plug them together. Attention: If the CAN bus line is interrupted, the control unit will raise an alarm and the safety circuit will be interrupted. Also unplug the connector of the connecting cable leading to the intermediate distribution frame. -
Page 26: Annex
Annex TÜV Confirmation... - Page 27 Annex – continued – TÜV Confirmation – continued –...
- Page 28 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 818957-04/06-2016cm (808761-07) · GESTRA AG · Bremen · Printed in Germany...
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