ABB VE5-2 Mekaanisen/sähköisen lukituksen käyttöohje

1. Johdanto

The ABB VE5-2 is a mechanical/electrical interlock designed for use with ABB A-Line Series contactors, specifically models A45 through A110. This device ensures safe operation by preventing simultaneous activation of two contactors, which is crucial in various industrial control applications where opposing contactor states are required for safety or operational integrity.

2. Turvallisuustiedot

Tärkeää: Read and understand all instructions before installing, operating, or maintaining this device. Failure to follow these instructions may result in serious injury or property damage.

• Always disconnect all power sources before performing any installation, wiring, or maintenance on the interlock or associated contactors.
• Installation and wiring must be performed by qualified electrical personnel in accordance with all local and national electrical codes and regulations.
• Do not operate the device if it appears damaged or improperly installed.
• Varmista asianmukainen maadoitus tarvittaessa.

3. Tuote ohiview

The ABB VE5-2 interlock provides both mechanical and electrical interlocking capabilities. It features 2 normally closed (N.C.) contacts, which are integral for creating a safe control circuit. The mechanical interlock physically prevents one contactor from closing if the other is already closed, while the electrical contacts provide an additional layer of safety by breaking the control circuit of the opposing contactor.

Kuva 1: ABB VE5-2 Mechanical/Electrical Interlock module. This image displays the ABB VE5-2 mechanical/electrical interlock module. It is a compact, grey rectangular unit with connection terminals visible on the top and side, labeled for normally open (NO) and normally closed (NC) contacts. The ABB logo and model designation are printed on the side, along with a simplified circuit diagram. White plastic pins are visible on the left side, indicating its mounting mechanism for attachment to compatible contactors.

4. Asennus ja asennus

The VE5-2 interlock is designed for direct mounting onto ABB A-Line Series contactors (A45 - A110 frame sizes). Follow these steps for proper installation:

1. Virran katkaisu: Ensure all power to the contactors and control circuits is disconnected and locked out before beginning installation.
2. Asennus: Align the VE5-2 interlock with the designated mounting points on the side of the primary contactor. The interlock typically snaps into place. Refer to the specific contactor's instruction manual for detailed mounting procedures.
3. Interlock Engagement: Ensure the mechanical interlock mechanism engages correctly between the two contactors. The interlock should prevent simultaneous operation of the contactor armatures.
4. Sähköliitännät: Connect the 2 N.C. contacts of the VE5-2 into the control circuit of the opposing contactor. For example, if the VE5-2 is mounted on Contactor 1 and interlocking Contactor 2, its N.C. contacts should be wired in series with the coil of Contactor 2. This ensures that when Contactor 1 is energized, its auxiliary contacts open, preventing Contactor 2 from being energized.
5. Vahvistus: After installation, manually check the mechanical interlock by attempting to close both contactors simultaneously (with power still off). Only one should be able to close at a time.

5. Käyttöohjeet

Once properly installed and wired, the ABB VE5-2 interlock operates automatically as part of your control system. Its function is passive, providing safety interlocking without requiring direct user interaction during normal operation.

• When one contactor (e.g., Contactor A) is energized and its main contacts close, the mechanical interlock physically prevents the armature of the second contactor (Contactor B) from closing.
• Simultaneously, the electrical N.C. contacts of the VE5-2, which are wired into the control circuit of Contactor B, will open. This electrically prevents Contactor B's coil from receiving power, even if its control signal is present.
• This dual mechanical and electrical interlocking ensures that only one contactor can be active at any given time, preventing short circuits or dangerous operating conditions in applications like motor reversing or transfer switches.

6. Huolto

The ABB VE5-2 interlock is designed for long-term, reliable operation with minimal maintenance. However, periodic inspection is recommended to ensure continued safe and effective performance.

• Silmämääräinen tarkastus: Regularly inspect the interlock for any signs of physical damage, cracks, discoloration, or excessive wear.
• Puhtaus: Keep the device free from dust, dirt, and debris, which can impede mechanical movement or affect electrical contact integrity. Use a dry, soft cloth for cleaning. Do not use solvents.
• Yhteyden eheys: Periodically check that the interlock is securely mounted to the contactors and that all electrical connections are tight and free from corrosion.
• Toiminnan tarkistus: During scheduled system maintenance, verify the interlock's function by attempting to energize both contactors sequentially to confirm that only one operates at a time.

7. Vianmääritys

If the interlock system is not functioning as expected, consider the following troubleshooting steps:

• Contactor Malfunction: If both contactors can be energized simultaneously, first check the mechanical installation of the VE5-2. Ensure it is correctly seated and engaging with both contactors.
• Johdotusvirheet: Verify that the electrical N.C. contacts of the VE5-2 are correctly wired into the control circuit of the opposing contactor. An incorrect wiring can bypass the electrical interlock.
• Yhteensopivuus: Confirm that the VE5-2 interlock is compatible with the specific ABB A-Line contactor models being used (A45 - A110 frame).
• Fyysinen este: Check for any foreign objects or debris that might be obstructing the mechanical movement of the interlock or contactor armatures.
• Vaurioitunut yksikkö: If the interlock appears physically damaged or worn, it may need replacement.

8. Tekniset tiedot

9. Takuutiedot

For detailed warranty information regarding the ABB VE5-2 Mechanical/Electrical Interlock, please refer to the official ABB website or contact your authorized ABB distributor. Warranty terms and conditions may vary based on region and purchase date.

10. Tukea

For technical assistance, product inquiries, or further support, please visit the official ABB support portal or contact your local ABB representative. Comprehensive resources, including datasheets and additional documentation, are available online.

• ABB:n virallinen Websivusto: www.abb.com
• Asiakaspalvelu: Refer to the ABB websivusto alueellisille yhteystiedoille.