Vital 1 Reset Connections

Manual Supervised Reset

The manual supervised reset contact connected to input X1 must be closed and opened in order to activate the relay outputs.

Automatic Reset

Automatic reset is selected when B1, X1 and X4 are connected. The relay outputs are then activated at the same time as the inputs.

Testing External Contactor Status

Contactors, relays and valves can be supervised by connecting 'test' contacts between B1 and X1. Both manual supervised and automatic reset can be used.

Output Connection - Vital 1

Relay Outputs

The Vital 1 has two (2 NO) safety outputs. In order to protect the output contacts it is recommended that loads (inductive) are suppressed by fitting correctly chosen VDRs, diodes etc. Diodes are the best arc suppressors, but will increase the switch off time of the load.

Information Outputs

The Vital 1 has a single changeover contact information relay output. The relay output Y14 is connected internally to 0V and 24V in the following way:

• Y14 is internally closed to 0V B2 (A2) when the Vital 1 is not reset.
• Y14 is internally closed to 24V B1 (A1) when the Vital 1 is reset.

Connection of S1

Even numbers of sensors (Eden, Spot, Tina) requires a connection between B1 and S1.

• S1 is not to be connected for odd numbers of sensors.
• See connection examples below figures A and B.

Connection of Safety Devices to Vital 1

Following are simple example. Consult our connection examples or contact JOKAB SAFETY NA for more details.