WEG SSW-07 - User Manual

Other manuals for WEG SSW-07

User Manual168 pages

Questions and Answers

M
Max EdwardsSep 17, 2025
What does internal By-pass relay contact open E71 on WEG SSW-07 mean?
- J
  Joseph JohnsonSep 17, 2025
  If the WEG Controller displays the error E71 (LED Fault) flashing three times with the Ready LED off, it indicates that the internal By-pass relay contact is open. This can be caused by a loose contact in the starting cables of the internal By-pass relays or defective By-pass relay contacts due to an overload. You can try to Power-on, use the Reset key, Auto-reset, or DIx.
J
Joseph ParkerAug 25, 2025
What causes E66 overcurrent flashing on WEG SSW-07?
- S
  sarahcarlsonAug 25, 2025
  If the WEG Controller shows a flashing E66 (LED Overcurrent), it means there's too much current. This can happen because of a momentary motor overload or a locked motor shaft (rotor blocked). To resolve this, try power on, using the reset key, auto-reset, or DIx.
C
Courtney RichardsAug 25, 2025
What causes E62 start timeout on WEG SSW-07?
- E
  Emily BlackAug 26, 2025
  If the WEG Controller displays a flashing E62 error (LED Fault flashes twice, LED Ready on), it indicates a start timeout during current limit starting. This can occur if the programmed acceleration ramp time is too short, the programmed current limitation value is too low, or the motor is locked (rotor blocked). To solve this, you can try to power on, use the reset key, auto-reset, or DIx.
A
Aaron SchmittAug 27, 2025
Why is my WEG SSW-07 showing E63 stall flashing?
- D
  Darrell GrantAug 27, 2025
  If the WEG Controller displays a flashing E63 error (LED Stall), it indicates a stall condition. Possible causes include a programmed acceleration ramp time shorter than the actual acceleration time, a locked motor shaft, or a transformer supplying the motor that's saturating and taking too long to recover from the starting current. Suggested solutions include power on, using the reset key, auto-reset, or DIx.
K
kimsarahSep 18, 2025
Why is WEG SSW-07 Controller showing frequency out of tolerance E75?
- T
  Tracy MartinSep 18, 2025
  If the WEG Controller displays the error E75 (LED Fault) flashing once with the Ready LED off, it indicates that the frequency is out of tolerance. This occurs when the line frequency is out of range, such as when the soft starter and motor are supplied by a generator that is not supporting the full load or the start of the motor. You can try to Power-on, use the Reset key, Auto-reset, or DIx.
M
Mary JohnsonSep 23, 2025
What to do if motor does not reach nominal speed with WEG SSW-07 Controller?
- T
  twhiteSep 23, 2025
  If the motor does not reach nominal speed when using the WEG Controller, it could be due to a motor stall. To address this, increase the current limit level with the control to limit the current (refer to table 6.1).
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.
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.
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.
M
Mathew GomezSep 1, 2025
What to do if WEG Controller shows E77 error?
- Q
  quinnkelseySep 1, 2025
  If the WEG Controller displays a flashing E77 error (Fault LED flashes 6 times, Ready LED is off), it indicates a closed bypass contact or shorted SCRs. This can be caused by a bad contact in the bypass cables, welded bypass contacts, a short-circuited thyristor, an input and output external short circuit, or a disconnected motor. Suggested solutions include power on, using the reset key, 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