WEG SSW-07 - User Manual

Other manuals for WEG SSW-07

User Manual168 pages

Questions and Answers

K
Kathy WhiteSep 12, 2025
How to troubleshoot a WEG SSW-07 Controller when the motor does not run?
- R
  Raymond SimonSep 12, 2025
  If the WEG Controller is not running, first check all the power and command connections to ensure they are correctly wired. For example, verify that the DIx digital inputs programmed as enabling or external fault are connected to AC supply. Then, check the programming to ensure the parameters have the correct values for the application. Finally, check if the Soft-Starter is not blocked to a detected fault condition.
A
Amy RyanSep 12, 2025
Why is my WEG SSW-07 Controller showing stall E63 error?
- P
  Philip ParkerSep 12, 2025
  If the WEG Controller displays the error E63 (LED Stall) flashing, it indicates a stall condition. This can be due to the programmed acceleration ramp time being lower than the actual acceleration time, a locked motor shaft, or saturation of the transformer supplying the motor, causing it to take too long to recover from the starting current. You can try to Power-on, use the Reset key, Auto-reset, or DIx.
K
Kelly MartinSep 10, 2025
What does overcurrent before By-pass E72 on WEG SSW-07 mean?
- T
  tcollierSep 10, 2025
  If the WEG Controller displays the error E72 (LED Fault) flashing four times with the Ready LED off, it indicates an overcurrent condition before the By-pass. This can occur if the programmed acceleration ramp time is shorter than the actual acceleration time, the nominal motor current is higher than what the soft starter can support, or the motor shaft is locked/rotor is blocked. You can try to Power-on, use the Reset key, Auto-reset, or DIx.
L
lwilsonSep 9, 2025
What causes overcurrent E66 on WEG Controller?
- C
  Charles WilliamsonSep 9, 2025
  If the WEG Controller displays the error E66 (LED Overcurrent) flashing, it indicates an overcurrent situation, which can be caused by a momentary motor overload or a locked motor shaft/blocked rotor. You can try to Power-on, use the Reset key, Auto-reset, or DIx.
L
Lori WalterSep 8, 2025
Why are the LEDs off on my WEG SSW-07?
- A
  Alison WhiteSep 8, 2025
  Check the power supply voltage of the control board (A1 and A2). Nominal values must be inside the following limits: Umin. = 93.5 Vac Umax.= 264 Vac.
M
Melanie FordAug 23, 2025
What to do if WEG SSW-07 Controller shows E05 overload flashing?
- E
  Emily PalmerAug 23, 2025
  If the WEG Controller shows a flashing E05 (LED Overload), it indicates an electronic motor overload. This can be due to several reasons: * The 'Motor Current' trimpot is incorrectly set (too low for the motor). * The starting sequence is longer than allowed. * The programmed thermal class is too low. * Insufficient time between Off/On procedures, not allowing enough motor refrigeration time. * The load on the motor shaft is too high. * The thermal protection value was saved when the control was turned off and restored when turned back on. To address this, you can try to power on, use the reset key, auto-reset, or DIx.
T
telliottSep 6, 2025
How to reduce vibration during acceleration with WEG SSW-07 Controller?
- K
  katelynharrisSep 6, 2025
  If there is vibration during acceleration with the WEG Controller, this could be due to the Soft-Starter settings. To resolve this, reduce the acceleration ramp time.
J
James HicksSep 5, 2025
Why doesn't my WEG Controller motor reach full speed?
- K
  Kayla BrownSep 5, 2025
  If the motor does not reach nominal speed when using the WEG Controller, it could be due to motor stall. To resolve this, increase the current limit level with the control to limit the current (refer to table 6.1).
J
Jeremy BentonSep 4, 2025
What does E75 mean on WEG SSW-07?
- C
  Cameron SanchezSep 4, 2025
  If the WEG Controller displays a flashing E75 error (LED Fault flashes once, LED Ready off), it indicates that the frequency is out of tolerance. This can happen when the line frequency is out of range or when the Soft-Starter + motor are being supplied by a generator that is not supporting the full load or the start of the motor. To address this, you can try to power on, use the reset key, auto-reset, or DIx.
A
Anne KingSep 3, 2025
Why is my WEG SSW-07 Controller showing E04 over temperature?
- C
  cjohnsonSep 3, 2025
  If the WEG Controller indicates an over temperature issue (E04, LED Fault flashes once, LED Ready on), it could be due to: * Shaft load being too high. * An elevated number of successive starts. * The internal temperature sensor not being connected. * The starting cycle requiring a ventilation kit (models from 45 A to 200 A). To solve this, try power on, using the reset key, auto-reset, or DIx.

Summary

CHAPTER 1 SAFETY INSTRUCTIONS

1.1 Safety Notices in the Manual

1.2 Safety Notices on the Product

CHAPTER 3 INSTALLATION AND CONNECTION

3.1 Mechanical Installation

Details physical installation procedures, mounting, and environmental conditions.

3.2 Electrical Installation

Covers wiring, connections, power supply, grounding, and control signals.

3.3 Recommended Set-ups

CHAPTER 4 SETTING THE SSW-07

4.1 Control Type Setting

Explains how to select and configure the motor starting method (e.g., Voltage Ramp, Current Limit).

4.2 Kick Start

4.3 Initial Voltage Setting

4.4 Current Limit Setting

Guides on setting the maximum current during motor start to match load requirements.

4.5 Acceleration Ramp Time Setting

4.6 Deceleration Ramp Time Setting

4.7 Motor Current Setting

Adjusts the motor current value for accurate electronic overload protection.

4.8 Motor Electronic Overload Protection

Explains the motor's thermal protection features and how they simulate motor heating.

4.9 Reset

4.10 DI2 Digital Input Setting

Describes how to program the DI2 digital input for fault reset or three-wire control.

CHAPTER 5 PROGRAMMING INFORMATION AND SUGGESTIONS

5.1 Applications and Programming

5.2 Protections and Programming

CHAPTER 6 SOLUTION AND TROUBLESHOOTING

6.1 Faults and Possible Causes

Lists common fault codes, their causes, and troubleshooting steps.

6.2 Troubleshooting

Offers solutions for frequent operational problems and diagnostic checks.

WEG SSW-07 Specifications

General

Frequency	50/60 Hz
Protection Class	IP20
Input Voltage	380-480V
Output Voltage	0-480V AC
Control Method	V/f Control
Bypass Contactor	Optional
Protection Features	Phase Loss
Communication	Modbus RTU
Ambient Temperature	-10°C to +50°C
Humidity	5 to 95% RH, non-condensing