Eaton S801+ Series - Appendix E-Troubleshooting Guide; New Applications Checklist-During Commissioning; Existing Installations Checklist

Appendix E—Troubleshooting Guide
S801+ Soft Starter MN03900002E—November 2012 www.eaton.com 45
Appendix E—Troubleshooting Guide
This guide is intended to provide the information necessary
to successfully troubleshoot issues that may occur during
the operation of the S801+ Soft Starter. The troubleshooting
sequence and fault codes (FC) are identified below in two
basic groups, New Applications and Existing Installations.
While any fault may occur in either category, experience has
shown that some faults are routinely experienced in one
category. The following information is intended to be a
reference guide to quickly move through the process to
achieve or restore operational status of the Soft Starter.
New Applications Checklist—During
Commissioning
Note: It is not unusual for the S801+ Soft Starter to trip in
the process of being commissioned as it is likely that
one or more parameter(s) setting are not appropriate.
24 Vdc control power applied.
●
Sufficient minimum wattage and voltage value and inrush
capacity.
Mains applied.
●
All circuit breakers closed, fuses installed—no open fuses.
●
All isolation devices closed.
●
Verify continuity of mains power to soft starter.
Load connected.
●
All isolation devices closed.
●
Reversing contactors (if used) in proper position.
●
Continuity of circuit from soft starter to the motor.
Parameter Setup—Operation Mode
●
Motor FLA (A)—Motor Nameplate FLA value (Default—
frame size minimum).
●
Motor Rated Voltage (Default—480V).
●
Start Method—Voltage Ramp or Current Limit (Default—
Voltage Ramp).
●
Start Time—As required (Default—20 seconds).
●
Initial Torque—As required (Default—45%).
●
Auto Reset Mode—As Required (Default—Manual)
Parameter Setup—Protection Mode
●
Overld Trip Class—As Required (Default—20)
●
Start Control—As Required (Default—Level)
The following Fault Codes may be experienced during
commissioning of a new installation or a new soft start into
an existing application. Verify all connections and settings
with test equipment as appropriate.
Common Commissioning Fault Codes
●
FC11—Overload
●
FC12—Motor Stall Fault
●
FC13—Jam
●
FC14—Motor Voltage Phase Reversal
●
FC16—SCR Not Firing
●
FC22—Phase Loss
●
FC25—Phase Imbalance
Existing Installations Checklist
External Circuit Components Issues
●
24 Vdc control power undersized and/or failed.
●
Isolation contactors open or damaged.
●
Mains power faulty.
●
Load disconnected.
●
Load failure.
●
Line/Load/Control circuits not restored after component
replacement.
Verification of Recent Maintenance Functions
●
All disconnected connections restored.
●
Isolation devices restored to proper operating positions
●
Proper selection of replacement components
●
Verify suitability of added or modified components to
circuitry.
Fault Code Verification
●
Use of test equipment to confirm/refute validity of fault
code.
●
Determine if the fault can be reset.
●
Determine if the fault is continuous or intermittent.
●
Note operating conditions at time of fault if possible.
Common Fault Codes
●
FC11—Overload
●
FC13—Jam
●
FC15—Power Pole Over Temperature
●
FC16—SCR Not Firing
●
FC22—Phase Loss
●
FC25—Phase Imbalance
●
FC31—Voltage Zero Cross
●
FC32—Shorted SCR.