Time Reset

Time reset can prevent unintentional reset of safety system when someone is still in the dangerous area of the machine. During a guaranteed maximum time, one or several PB´s for reset must be activated. The reset buttons should be sited in such a way that operatives have a clear overview of the whole area which is guarded. Time reset is made by the combination of a safety relay and the timer relay JSHT1A/B.

Time Bypassing

The JSHT1 can also be used for time bypass of light beams, for example a forklift into a dangerous area.

Operation

When the inputs open the output contacts close. The output contacts open when the inputs close or when the time period has expired. The time period is hardwire selectable on terminals T1, T2 and T3. The time given is the maximum time. One or two channel operation is also hardwire selectable.

Applications

• Time Reset
• Time Bypassing

Features

• Hardwire time selection 5 - 40 s
• Selectable single or dual channel input
• Test input
• Width 45 mm
• LED indication for supply, inputs and outputs
• 1+1 NO relay outputs
• 24 VDC
• 24/48/115/230 VAC
• Quick release connector blocks

For further information including technical data and connection examples click here. JSHT1A/B Safety Timer

JSHT1A/B Safety Timer

If you're using Safety Relays or Timers, check out the Vital 1 Controller. Vital can monitor up to 30 Safety Devices and maintain Category 4 Safety Level.

Regulations and Standards

The JSHT1 A/B is designed and approved in accordance with appropriate directives and standards. Examples of such are: 98/37/EC, EN ISO 12100-1/-2, EN 60204-1 and EN 954-1/EN ISO 13849-1.

Approvals