PLUS+1 GUIDE Software. PLUS+1 Compliant H1 Filter Bypass Function Block User Manual COMPLI ANT mm mm x 25.2 mm [1.

Transcription

1 PLUS+1 GUIDE Software PLUS+1 Compliant H1 Filter Bypass Function Block mm mm mm [5.59] 2x 25.2 mm [1.0] 97.0 mm [3.82] TM 2x 7.0 [.28] MOUNTING DIRECTION #2 COMPLI ANT PIN #1 INDICATED LED INDICATOR LIGHTS 51.6 mm [2.03] mm [1.85] CONNECTOR MATES WITH DEUTCH CONNECTOR #DTM A CONNECTOR MATES WITH DEUTCH CONNECTOR #DTM A

2 About this Manual Organization and Headings To help you quickly find information in this manual, the material is divided into sections, topics, subtopics, and details, with descriptive headings set in red type. Section titles appear at the top of every page in large red type. In the PDF version of this document, clicking an item underlined in blue italic type jumps you to the referenced page in the document. Special Text Formatting Table of Contents Controls and indicators are set in bold black type. A Table of Contents (TOC) appears on the next page. In the PDF version of this document, the TOC entries are hyperlinked. Revision History Revision Date Comment Rev DA November Sauer-Danfoss. All rights reserved. Sauer-Danfoss accepts no responsibility for possible errors in catalogs, brochures and other printed material. Sauer-Danfoss reserves the right to alter its products without prior notice. This also applies to products already ordered provided that such alterations can be made without affecting agreed specifications. All trademarks in this material are properties of their respective owners. PLUS+1, GUIDE, and Sauer-Danfoss are trademarks of the Sauer-Danfoss Group. The PLUS+1 GUIDE, PLUS+1 Compliant, and Sauer-Danfoss logotypes are trademarks of the Sauer-Danfoss Group Rev DA November 2011

3 Contents... 4 Overview... 4 Inputs... 5 Outputs... 5 Fault Logic... 6 About Function Block Connections... 7 About the Relationship between Function Block Input and Output Signals... 7 MC Controller Input Configuration... 9 How to Configure an AnIn... 9 SC Controller Input Configuration How to Configure a MFIn Rev DA November

4 Overview The H1_Filtr_Bpas function block monitors the output of an H1 Filter Bypass Sensor that is installed on an H1 integral filter. T Bypass conditions can cause pump and system damage. The bypass sensor warns of bypass conditions that may require immediate attention. The bypass sensor is not designed to alert users that the filter is approaching the end of its normal service life. Do not use the bypass sensor to indicate when normal filter replacement is required. Always follow a filter replacement schedule to maximize pump life and to avoid damaging bypass conditions. T If a bypass condition occurs on a new pump, check for ferrous (magnetic) materials inside the bypass sensor. The H1 Filter Bypass Sensor outputs resistance based on the position of a bypass spool valve. The bypass spool valve controls when oil starts bypassing the filter. The bypass sensor changes resistance levels before the bypass spool valve allows oil to bypass the filter. This resistance change gives an advanced warning of a bypass condition. When the filter is not bypassing, the bypass sensor outputs a resistance of Ω. When the filter is about to bypass, or is actually bypassing, the bypass sensor outputs a resistance of Ω. The H1_Filtr_Bpas function block indicates the bypass spool position with a Boolean output of T or F. When Ω, the resistance from the bypass sensor indicates that the filter is not bypassing, the function block outputs a F signal. When Ω, the resistance from the bypass sensor indicates that the filter is about to bypass or is actually bypassing, the function block outputs a T signal. See About Function Block Connections on page 7 for an overview of this function block s connections and signals Rev DA November 2011

5 Inputs Inputs Input Type Range Description Input Inputs a resistance value that indicates the position of a bypass sensor. Outputs Outputs Output Type Range Description Fault U16 Reports function block faults. All fault conditions set the Bypass signal to true, regardless of the resistance value input by the bypass switch. The Fault signal uses the standard bitwise scheme described in the Basic Function Block Library User s Manual. Bypass BOOL Outputs a T or F value based on the resistance value input by a bypass switch. T = Resistance from the bypass switch is Ω. The filter is about to bypass or is actually bypassing. F = Resistance from the bypass switch is Ω. The filter is not bypassing Rev DA November

6 Fault Logic All fault conditions set the Bypass signal to true, regardless of resistance value input by the bypass switch. Once a fault condition clears, the Bypass signal immediately returns to normal T/F operation. Fault Logic Fault Cause Bit* Response Delay Latch Correction Value out of range. Open circuit. Short circuit. The Input resistance value is outside the ranges for a valid true or false Bypass signal but is greater than 61 Ω and less than 1020Ω. The Input resistance value is above 1020Ω. The Input resistance value is below 61Ω. 2 Verify the resistance between the sensor output and ground. Check for incorrect wiring. Bypass held Yes No at T. 3 Check for open circuit or high resistance between the input and ground. 4 Check for short circuit or low resistance between the input and ground. *Position of set bit in a 16 bit status or fault code. Bit 1 is the least significant bit. Bit 16 set to 1 identifies a standard Sauer-Danfoss status code or fault code. A delayed fault gets reported if the detected fault condition persists for a specified delay time. A delayed fault cannot be cleared until the fault condition remains undetected for the delay time Rev DA November 2011

7 About Function Block Connections Function Block Connections Item Description 1 Resistance value from bypass switch. 2 Reports function block faults. 3 T = Filter is bypassing or about to bypass. F = Filter is not bypassing. About the Relationship between Function Block Input and Output Signals The following plot shows the relationship between the resistance values applied to the H1_Filtr_Bpas function block s Input signal and its Fault and Bypass signal outputs. When the resistance at the Input is: At or below 60Ω, the Fault signal indicates a short-circuit fault. This fault sets the Bypass output to true, regardless of the bypass spool position. Between 62 and 97Ω, the Fault signal indicates an out-of-range fault. This fault sets the Bypass output to true, regardless of the bypass spool position. Between 98 and 147Ω, the Fault signal indicates normal operation. A Bypass output of true at these resistance values indicates that the filter is about to bypass or is actually bypassing. Between 148 and 407Ω, the Fault signal indicates an out-of-range fault. This fault sets the Bypass output to true, regardless of the bypass spool position Rev DA November

8 Between 408 and 612Ω, the Fault signal indicates normal operation. A Bypass output of false at these resistance values indicates that filter is not bypassing. Between 613 and 1020Ω, the Fault signal indicates an out-of-range fault. This fault sets the Bypass output to true, regardless of the bypass spool position. At or above 1021Ω, the Fault signal indicates an open-circuit fault. This fault sets the Bypass signal to true, regardless of the bypass spool position Rev DA November 2011

9 MC Controller Input Configuration If you have an SC controller, see SC Controller Input Configuration on page 10. You route the resistance from a bypass switch through an AnIn to the Input on the H1_Filtr_Bpas function block. You must change the configuration of the AnIn to accept a resistance input. T The AnIn that you use must be identified for use as an Analog Input. Do not select an AnIn used for Sensor Power or as an AnIn/CAN Shld. How to Configure an AnIn 1. In the GUIDE template, enter the Inputs page. 2. Enter the AnIn page that inputs the resistance value. 3. Make the changes that are shown in the preceding figure Rev DA November

10 SC Controller Input Configuration If you have an MC controller, see MC Controller Input Configuration on page 9. You route the resistance from a bypass switch through an MFIn to the Input on the H1_Filtr_Bpas function block. You must change the configuration of the MFIn to accept a resistance input. T The MFIn that you use must be configurable for use as a Resistance input. How to Configure a MFIn 1. In the GUIDE template, enter the Inputs page. 2. Enter the MFIn page that inputs the resistance value. 3. Make the changes that are shown in the preceding figure Rev DA November 2011

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