Reset; Di2 Digital Input Setting - WEG SSW-08 Manual Del Usuario

Setting the SSW-08
NOTES!
Adjust the motor current according to chapter 4.7 for the correct function of the
„
overload protection;
This protection is based on Three Phase IP55 Standard WEG motors. If your motor
„
is different, we recommend to adjusting a lower thermal class. For more details
refer to chapter 5.2;
When SSW-08 is without the electronic supply voltage (A1 and A2), the thermal
„
image is saved internally. When the supply (A1 and A2) is reestablished, the thermal
image returns to the value prior to the electronic supply loss;
The RESET of the electronic overload protection can be set to manual function (man).
„
In this case the RESET must be made via digital input 2 (DI2) or through the RESET
key. If the RESET setting is automatic (auto), the fault condition will automatically be
reset after the cooling time;
The thermal image is set to zero, when the overload protection is disabled.
„
4

4.9 RESET

A fault condition can be reset using the RESET key at the front of the SSW-08 or through a
push-button (0.5 seconds) at DI3 (digital input for RESET). Another way to reset the SSW-08 is
by switching Off/On the electronic power supply (A1 and A2).
NOTE!
The SSW-08 also allows for the possibility of automatic RESET by enabling this function
through the DIP Switch (auto):
Automatic RESET occurs after 15 minutes in the following conditions:
„
- Overcurrent;
- Phase loss;
- Stall;
- Overcurrent before By-pass;
- Frequency out of range;
- Contact of the internal By-pass relay is open;
- Power control supply undervoltage;
- External fault.
For incorrect phase sequence there is no automatic RESET.
„
For electronic overload of the motor there is a specific algorithm for the automatic
„
RESET time.

4.10 DI2 DIGITAL INPUT SETTING

In the factory default, the DI2 digital input has its function programmed for the reset of faults.
DI2 can also be programmed to work as a three wire control.
The three wire control allows the Soft-Starter to be commanded through two digital inputs,
DI1 as an ON input and DI2 as an OFF input. This allows for the direct placement of two push
buttons. Refer to item 3.3.2.
To change the DI2 digital input, follow the instructions below:
1. To enter in programming mode, maintain the reset key at the front of the SSW-08 pressed
for 5 seconds. Maintain the reset key pressed during programming;
2. When in programming mode, two LEDs will turn on (overcurrent and phase loss), indicating
that DI2 is programmed for fault Reset. When three LEDs turn on (overcurrent, phase loss
and phase sequence), it indicates that the DI2 is programmed for three wire commands;
32 | SSW-8