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E1T Expansion Relay buy in Cincinnati
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E1T Expansion Relay

E1T Expansion Relay

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Description

More Outputs

By connecting expansion relays to a safety relay it is easy to increase the number of safe outputs. This means that an unlimited number of dangerous machine operations and functions can be stopped from one safety relay/PLC.

Safe Soft Stop

When a gate is opened a program stop is first given to the machine's PLC/servo which brakes the dangerous operations in a soft and controlled way. The safety outputs then break the power to the motors, that is, when the machine has already stopped. Normally between 0.5 and 1 second is needed to brake a dangerous machine operation softly.

Soft stop ensures many advantages:

  • The machine lasts longer.
  • Parts being processed are not damaged.
  • Restart from stopped position is enabled and simplified.

A safe soft stop is achieved by means of a safety relay which gives the program stop, and an expansion relay, E1T, which gives safe delayed stop signals. See chapter "Connection Examples". The drop time delay on a E1T can as standard be selected from 0 to 3 seconds. By connecting several E1Ts in series even longer times can be achieved.

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E1T Expansion Relay
E1T Expansion Relay
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