- Tension Wire System: The device uses a pull wire. Tripping or activating the safety system occurs when this wire is subjected to specific conditions.
- Tripping Conditions: Tripping, or the activation of the emergency stop function, can occur under several conditions:
When the pull wire is removed: If someone disengages or removes the wire from the device, it triggers an emergency stop.
When the pull wire is pulled: If the pull wire is subjected to an emergency stop activation by personnel, it activates the positive drive safety mechanism which initiates an emergency stop function.
When the pull wire is over-tensioned: If the pull wire is over-tensioned in set-up or due to other factors the device will trigger an emergency stop.
When the pull wire is under-tensioned: If the pull wire is under-tensioned in set-up or due to other factors the device will trigger an emergency stop.
Manual Tripping: The device can also be manually tripped using a reset dial. This is a useful feature for testing and maintenance purposes or for manually stopping the system in emergency situations.
- Micro Switches: The Safe-T-Pull device is equipped with 2 or 4 direct opening safety micro switches. These safety micro switches are Single Pole Double Throw (S.P.D.T.) change-over switches. They provide a direct opening positive break in electrical signal when the conditions for activation are met.
In summary, the Safe-T-Pull device is a safety mechanism designed to stop a machine or conveyor system when certain conditions, such as wire removal, wire slackening, wire over-tensioning, wire activation or manual dial activation, are met. The inclusion of direct opening safety micro switches coupled to a direct opening mechanical action and a reset dial allows for both automated and manual control over the emergency stop function, enhancing safety in industrial or conveyor system applications.