Solcon HRVS-DN series

Questions and Answers

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Donna MorrisNov 26, 2025
Why does Solcon HRVS-DN's motor make irregular noise while starting?
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  Diana MaldonadoNov 26, 2025
  Irregular noise from the motor during startup with the Solcon Controller can be caused by several factors: * Verify that the motor is not too small. Try to use a larger motor, with inertia or loaded, if possible. * If vibration occurs at the beginning of start process with SOFT START CURVE 1, 2, 3, 4 or 5 try SOFT START CURVE 0. * If vibrations occurs at the beginning of start process with SOFT START CURVE 0 check low voltage test harness installation, fiber optic 11 & 13 and EPT-Rx outputs. * Vibrations, when approaching full speed at the start of SOFT START CURVE 0 with motors that have no load are normal and do not indicate a problem. With other SOFT START CURVE it can occur with small / unloaded motor which accelerates too fast. Try to reduce INITIAL VOLTAGE to a minimum. * ...
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mortonkyleAug 25, 2025
Why does OVERLOAD trip occur after Bypass is closed in Solcon Controller?
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  Terri HowardAug 26, 2025
  An OVERLOAD trip after Bypass closure in the Solcon Controller can happen due to several reasons: * Verify that current Gain dip switches are set according to the testing motor rated current versus rated current of the starter. Overload trip can occur if gain (set by Gain dip switches settings) is too high. * Verify that the HRVS-DN FLC setting parameter is set according to the rated current of the HRVS-DN. * Set Motor FLA identically to HRVS-DN FLC. * Reset, start again and read currents on screen. * Check if current readings after start are is more than starter’s rated current.
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qhessAug 27, 2025
How to resolve PHASE SEQUENCE trip in Solcon HRVS-DN Controller?
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  crojasAug 27, 2025
  If a PHASE SEQUENCE trip occurs immediately after starting the Solcon Controller, it indicates that the phase sequence of the mains lines is incorrect. You have two options to resolve this: 1. Swap two input lines. 2. Set the PHASE SEQUENCE setting in FAULT PARAMETERS as required.
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Victoria RamirezAug 29, 2025
What causes GROUND FAULT trip after starting Solcon Controller?
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  Daniel HayesAug 29, 2025
  A GROUND FAULT trip after starting the Solcon Controller may be due to: * View the three currents on starter’s display. * Check that the current Gain dip switches are set identically in the three phases. * Verify that an output cable to the motor is not short circuited to the chassis ground. * Verify that two wires of a CT are not swapped (can occur only if user changed CTs wiring! ) Note: SUCH ACTION WILL VOID MANUFACTURER’S WARRANTY ! * Disconnect the low voltage motor. Check motor insulation with a Megger tester.
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Michelle ConnerAug 30, 2025
Why does O/C-SHEAR PIN trip occur when starting Solcon Controller?
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  Bradley SmithAug 30, 2025
  An O/C-SHEAR PIN trip immediately after starting the Solcon Controller could be due to: * Verify that Current Gain dip switches are set according to the ratio between the rated current of the starter and the testing motor rated current. * The trip can occur if added (by setting of Gain dip switches) gain is too high. * Try to start with SOFT START CURVE 0 and stop with SOFT STOP CURVE 0. If problem is solved the current transformers and their wiring should be checked. * Check that all fiber optic wires are properly connected.
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joshuamillerNov 22, 2025
What to do if UNDER/NO VOLTAGE trip occurs immediately after starting Solcon HRVS-DN?
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  Jesse WellsNov 22, 2025
  If an UNDER/NO VOLTAGE trip occurs right after starting the Solcon Controller, take these steps: * Make sure all three mains phases are connected. * If testing at low voltage, ensure the test harness is connected to the EPT-Tx. * Verify the Line Contactor closes, at least briefly, at the start. * If using an external line contactor, its auxiliary contact should be wired back to the HRVS-DN cabinet and used (in series with RS relay contact) to initiate the start command. * Check the UNDERVOLT. TRIP setting level in the MAIN & PROTECT page. * Confirm the Electronic Potential Transformer Receiver (EPT-Rx) fuse in the Receiver auxiliary supply plug is OK. * Ensure the fiber optics wires connecting the EPT-Tx and EPT-Rx are properly connected. * Move the external mains connecti...
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bgallegosSep 18, 2025
How to resolve UNDER CURRENT trip after bypass is closed in Solcon HRVS-DN?
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  Mark OlsenSep 18, 2025
  To resolve an UNDER CURRENT trip after bypass is closed in the Solcon Controller, reduce setting of Undercurrent setting in the MAIN & PROTECT Parameters settings.
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Lisa HubbardSep 23, 2025
Why does Solcon HRVS-DN motor start immediately after resetting a trip?
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  Dawn FordSep 23, 2025
  The motor might start immediately after resetting a trip on the Solcon Controller when the Local / Remote switch is set to remote, and the remote contact is closed. Note: It is the responsibility of the remote controller to open the remote start/stop contact immediately upon trip.
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Joy JensenSep 9, 2025
What causes OPEN BYPASS trip after start process in Solcon HRVS-DN?
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  Nicole WeberSep 9, 2025
  An OPEN BYPASS trip after the start process in the Solcon Controller can be caused by: * Verify that Current Gain dip switches are set according to the ratio between the rated current of the starter and the testing motor rated current. * Check Bypass Contactor wiring.
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monicacampbellSep 6, 2025
Why does Solcon Controller motor vibrate at the end of starting or beginning of soft stop?
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  Mr. Russell BlackwellSep 6, 2025
  If the motor vibrates mechanically at the end of the starting process or at the beginning of a soft stop, and the current fluctuates with the Solcon Controller: * This phenomena may occur with unloaded or lightly loaded motor, if SOFT START CURVE 0 is used. * Use standard curve SOFT START CURVE 1 and SOFT STOP CURVE 1.

Solcon HRVS-DN series Specifications

General

Type	Medium Voltage Soft Starter
Voltage	2.3kV up to 13.8kV
Current	Up to 1200A
Starting Method	Soft Start
Bypass	Optional
Protection	Phase Loss
Communication	Modbus RTU, Profibus, Ethernet
Cooling	Forced Air