AS-Interface Slaves

AS-Interface motor starters and IP65/67 load feeders

AS-Interface compact starters IP65 (400 V AC)

■Function (continued)

Diagnosis of the electronic compact starter by means of the user programme

The input and output signals of the EDS2E and ERS2E electro- mechanical compact starters can be evaluated in the user pro- gramme.

Output DO2 is only controlled in those variants with a brake con- tact.

The I/O assignment corresponds to the AS-Interface motor starter profile 7E.

Note:

The brake contact is controlled via the bus separately from the main circuit. This makes it possible to switch the motor and brake independently. In the user programme, it must be ensured that dangerous plant states cannot occur, e.g. unintentional free- wheeling or blocking of the motor. This also applies to local shut- down, e.g. in response to an overload tripping operation. Input signal DI0 can be used to check the status of the device.

Inputs

 

 

Input signals

 

Device status

Meaning

 

 

DI0

„Ready“

0

Device not ready / error

Manual mode

 

 

 

 

 

 

Device has been switched to manual mode locally (switch back to auto-

 

 

 

 

 

 

matic mode using hand-held unit).

 

 

 

 

 

 

Tripped signal

 

 

 

 

 

 

Rotary coding switch in position

 

 

 

 

 

 

• Tripping LOCAL: Direct shut-off

 

 

 

 

 

 

• Tripping REMOTE: Remote shut-off or continued operation when pro-

 

 

 

 

 

 

grammed in the user programme

 

 

 

 

 

 

FAULT signal

 

 

 

 

 

 

• No current flowing

 

 

 

 

 

 

- Failure of two phases

 

 

 

 

 

 

- Drawn motor connector

6

 

 

 

 

 

- Supply voltage drop

 

 

 

 

 

(< 18 V)

 

 

 

 

 

- Current imbalance limit exceeded

 

 

 

 

 

 

- Fault in main circuit of the device

 

 

 

 

 

 

• Hardware fault (Reset after rectification)

 

 

 

 

1

Device is ready / automatic

–

 

 

 

 

 

mode

 

 

 

DI1

„Running“

0

No current flowing

–

 

 

 

 

1

Current is flowing

–

 

 

DI2

„Special information 1“

0

No input signal IN1

–

 

 

 

 

1

Input signal IN1

–

 

 

DI3

„Special information 2“

0

No input signal IN2

–

 

 

 

 

1

Input signal IN2

–

 

 

Outputs

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Output signals

 

Device status

Meaning

 

 

DO0

“Run forward”

0

Clockwise rotation OFF

–

 

 

 

 

1

Clockwise rotation ON

–

 

 

DO1

“Run reserve”

0

Counterclockwise rotation OFF

–

 

 

 

 

1

Counterclockwise rotation ON

–

 

 

DO2

“Special command 1”

0

Open brake contact

–

 

 

 

 

1

Close brake contact

–

 

 

DO3

“Special command 2”

0

Remote Reset OFF

–

 

 

 

 

1

Remote Reset ON

–

 

 

 

 

 

 

 

6/108

Siemens IK PI · 2004

Page 107 Page 109
Page 108
Image 108
Siemens EN 50295 manual 108, Tripped signal, DO1
Page 107 Page 109

EN 50295 specifications

Siemens EN 50295 is emerging as a pivotal standard in the domain of electrical safety and design, particularly relevant for the electrical industry and equipment manufacturing sectors. Primarily, this European Norm is geared towards ensuring the safety of electrical systems used in dry environments, which is essential for various industrial applications.

One of the main features of the EN 50295 standard is its comprehensive safety requirements which are aimed at mitigating the risks associated with electrical systems. This includes aspects like insulation resistance, protective earthing, and the management of electrical faults. By setting a benchmark for safety, Siemens EN 50295 assists manufacturers in maintaining compliance with national and international regulations, thus protecting both users and equipment.

The standard emphasizes the importance of safety measures in the design process. It outlines criteria for components, assembly methods, and system installation, ensuring that electrical equipment operates stably and gets rid of risks related to electrical failures. This involves rigorous testing of materials and components, which enhances their reliability and longevity while providing efficient overall operation.

Siemens EN 50295 also incorporates advancements in technology, acknowledging the significance of intellectual innovation in the industry. It encourages the integration of smart technologies and automation features into electrical systems, paving the way for enhanced operational efficiencies. Such technologies not only improve the performance of electric systems but also contribute to energy conservation, reducing the overall environmental footprint.

Another characteristic of the EN 50295 standard is its adaptability. The framework it provides can be customized depending on specific industry needs, making it versatile across various sectors such as manufacturing, construction, and transportation. This adaptability ensures that businesses can maintain high safety standards while still allowing room for innovation and modern practices.

In summary, Siemens EN 50295 presents a well-rounded approach to enhancing safety, reliability, and sustainability in electrical systems. Its features and characteristics are set to guide industries in making informed decisions regarding electrical configuration, ultimately fostering a safer and more efficient working environment. The incorporation of emerging technologies ensures that the standard remains relevant in a fast-evolving technological landscape, proving to be an invaluable asset for manufacturers and service providers alike.
Top Page Image Contents