S&C IntelliCap Plus Troubleshooting Manual
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S&C IntelliCap Plus Troubleshooting Manual

S&C IntelliCap Plus Troubleshooting Manual

Automatic capacitor control
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S&C IntelliCap
Plus Automatic Capacitor Control
®

Table of Contents

Section
Qualified Persons . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Read this Instruction Sheet . . . . . . . . . . . . . . . . . . . 2
Retain this Instruction Sheet . . . . . . . . . . . . . . . . . . . 2
Proper Application . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Special Warranty Provisions . . . . . . . . . . . . . . . . . . . 2
Understanding Safety-Alert Messages . . . . . . . . . . . . . . 4
Following Safety Instructions . . . . . . . . . . . . . . . . . . . . . 4
Replacement Instructions and Labels . . . . . . . . . . . . . . 4
Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Applicable Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
LCD Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
IntelliLink® Setup Software . . . . . . . . . . . . . . . . . . . . . . . 6
Electrical Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Test Points . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Tools Required . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Basic Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
October 30, 2017
© S&C Electric Company 2003-2017, all rights reserved
Troubleshooting
Page
Section
Load Fuse is Blown . . . . . . . . . . . . . . . . . . . . . . . . . . 8
LED Display Problems . . . . . . . . . . . . . . . . . . . . . . . . . . 9
LCD Screen Problems . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Error Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Incorrect Real-Time Data . . . . . . . . . . . . . . . . . . . . . . . 12
Miscellaneous Problems . . . . . . . . . . . . . . . . . . . . . 13
Operation Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Alarm Status Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Trouble Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Error Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Metering Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Product Information Screen . . . . . . . . . . . . . . . . . . . . . 23
Chronological Log . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Instruction Sheet 1023-550
Page

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Summary of Contents for S&C IntelliCap Plus

  • Page 1: Table Of Contents

    S&C IntelliCap Plus Automatic Capacitor Control ® Troubleshooting Table of Contents Section Page Section Page Introduction Power Problems Qualified Persons . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Load Fuse is Blown .

  • Page 2: Introduction

    PDF format at sandc.com/en/support/product-literature/ . Retain this This instruction sheet is a permanent part of your S&C IntelliCap Plus Automatic Capacitor Instruction Sheet Control. Designate a location where you can easily retrieve and refer to this publication.
  • Page 3 Introduction Warranty of the S&C IntelliCap Plus Automatic Capacitor Control is contingent upon the installation, configuration, and use of the control or software in accordance with S&C’s applicable instruction sheets. This warranty does not apply to major components not of S&C manufacture, such as communication devices.

  • Page 4: Safety Information

    Understanding Several types of safety-alert messages may appear throughout this instruction sheet and on labels attached to the S&C IntelliCap Plus Automatic Capacitor Control. Familiarize Safety-Alert Messages yourself with these types of messages and the importance of these various signal words: DANGER “DANGER”...

  • Page 5: Safety Precautions

    Safety Precautions DANGER The S&C IntelliCap Plus Automatic Capacitor Control line voltage input range is 93 to 276 Vac. Failure to observe the precautions below will result in serious personal injury or death. Some of these precautions may differ from your company’s operating procedures and rules .

  • Page 6: Troubleshooting Overview

    (high) voltage . The following tools and features are used to diagnose and correct IntelliCap Plus control problems:...

  • Page 7: Test Points

    Select the START UPDATE button. STEP 4. STEP 5. The operating system will be reloaded into the IntelliCap Plus control, and the LCD screen should show: **UNIT OK** on the first line, and the data should scroll on the second line.

  • Page 8: Power Problems

    Power Problems Load Fuse Is Blown When the load fuse blows, the voltage magnitude the control displays will be approximately zero. NOTICE Before changing a blown load fuse, set the operation mode to fthe Manual setting . This will prevent any automatic operation . Follow these steps to check a blown load fuse: STEP 1.

  • Page 9: Led Display And Lcd Screen Problems

    (b) For controls with a bracket mount, make sure the cable wiring is correct. All IntelliCap Plus controls have a label inside the enclosure that shows the correct configuration. (c) Following utility-approved work procedures and safety practices, verify that there is 120 Vac in the line which provides ac power to the control.
  • Page 10 LED Display and LCD Screen Problems Table 1. Error messages on the LCD display. Error Message Meaning [Volt Sensor Err] The voltage sensor is reading outside of its range or may be faulty . [Temp Sensor Err] The temperature sensor is reading outside of its range or may be faulty .

  • Page 11: Software Troubleshooting

    Software Troubleshooting Error Messages Incompatible Ident The IntelliLink software uses a different screenset (WMN file) for each type of control and normally selects the screenset for you. This message appears when you have a screenset selected (displayed) and try to connect to a snapshot (VM file) that requires a different screenset.

  • Page 12: Incorrect Real-Time Data

    Therefore, voltage override setpoint values can be accurately determined using voltages displayed and data logged by the IntelliCap Plus control. The Fluke Model 189 True RMS meter (or equivalent) is the reference voltmeter used to confirm voltage indications on an IntelliCap Plus control.

  • Page 13: Miscellaneous Problems

    Miscellaneous Problems SCADA commands are ignored by the capacitor control Follow these steps to check SCADA command performance: Check the SCADA CONTROL LED display. To operate the bank remotely, the STEP 1. faceplate REMOTE LED display must be lit. If it is not, press the SCADA CONTROL CHANGE button.
  • Page 14 Miscellaneous Problems Capacitor control is not switching the bank automatically Follow these steps to trouble troubleshoot automatic switching: Make sure the faceplate AUTO LED display is lit. If the AUTO LED display is off, STEP 1. press the OPERATION MODE CHANGE button. Note: If the capacitor control was in Manual mode and is returned to Automatic mode, it waits 60 seconds before switching the bank.

  • Page 15: Using Intellilink Setup Software To Locate Problems

    Using IntelliLink Software to Locate Problems Operation Screen The IntelliLink software Operation, Alarm Status, Metering, and Product Information screens helps check the status of the capacitor control and locate the causes of several problem types. The Operation screen displays the present status of the control and capacitor bank along with real-time data from the feeder.
  • Page 16 Using IntelliLink Software to Locate Problems Model Number This field shows the model number of this control. Control Software Revision This field shows the S&C name of the control software version present in this control, for example PCSD100S. Serial Number This field shows the serial number of the capacitor control.
  • Page 17 Using IntelliLink Software to Locate Problems When the phase angle is between 90 degrees and 270 degrees, 180 degrees is subtracted. The power factor and kvars are then calculated and displayed. Under these conditions, the Current Flow Direction field shows “Reverse.” A properly configured control indicates “Reverse”...

  • Page 18: Alarm Status Screen

    Using IntelliLink Software to Locate Problems Alarm Status Screen The Alarm Status screen shows the present status (active or inactive) of several troubleshooting-related conditions. See Figure 3. To display the Alarm Status screen, click on the Operation button from any IntelliLink screen.

  • Page 19: Error Conditions

    Using IntelliLink Software to Locate Problems Incorrect Voltage Range This field displays “Active” when the voltage is not within ±15% of the nominal voltage. Make sure the Nominal Operating Voltage setpoint (on Page 3 of the Setup>General screen) is set correctly. Low Switching Volt Delta Th is f ield d isplays “Active”...

  • Page 20: Metering Screen

    Using IntelliLink Software to Locate Problems High/Low Voltage Band This field displays “Active” when the Bank Voltage Change + Margin average value is greater than the difference between the High-Voltage Override Value setpoint and the Low- Voltage Override Value setpoint for the present season. See Page 1 of the Setup>General screen for more information.
  • Page 21 Using IntelliLink Software to Locate Problems Line-to-Ground Voltage (var controls only) This is the present value of the distribution line voltage (in kV), calculated based on the Voltage Transformer Ratio setpoint and Voltage Transformer Wiring setpoint, on the Setup>Site-Related screen. Temperature This is the present ambient air temperature.
  • Page 22 Using IntelliLink Software to Locate Problems Power Harmonics The capacitor control calculates the 1st (fundamental), 3rd, 5th, 7th, and 9th harmonics, as well as the total harmonic distortion (THD), every 15 minutes. The Total RMS value is a 24-hour total of all RMS harmonics. When the log is full, each new value overwrites the oldest value in the log.

  • Page 23: Product Information Screen

    Note: If trying to start the IntelliLink software for a different S&C product, for example an EnergyLine 1000 Series Capacitor Control, while the computer is connected to the IntelliCap Plus control, the IntelliLink software terminates during startup and displays an error message.

  • Page 24: Chronological Log

    Using IntelliLink Software to Locate Problems Chronological Log The Chronological Log screen shows a log of various troubleshooting-related events. This information may help identify the cause of problems. See Figure 6. To display the Chronological Log screen from the Data menu, select the Event/Data Logs entry, and double-click on the Event_Logs entry.
  • Page 25 Using IntelliLink Software to Locate Problems Hardware Manual Override Enabled The faceplate OPERATION MODE switch was set to Manual mode. Hardware Remote SCADA Disabled The faceplate SCADA CONTROL switch was set to Local mode. Hardware Remote SCADA Enabled The faceplate SCADA CONTROL switch was set to Remote mode. High-/Low-Voltage Band Active The Bank Voltage Rise + Margin value is greater than the difference between the High- Voltage Override Value setpoint and the Low-Voltage Override Value setpoint.
  • Page 26 Using IntelliLink Software to Locate Problems Temperature Sensor O.K. A problem with the temperature sensor has cleared. Voltage Override Active A high-voltage or low-voltage condition is present. See Instruction Sheet 1023-530, “S&C IntelliCap® Plus Automatic Capacitor Control: Setup,” for more information. Voltage Override Cleared A high-voltage or low-voltage condition has cleared.

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