4/29/2023 0 Comments Sentry safe models![]() They are capable of handling most types of applications and safety devices, i.e. Sentry USR models are universal safety relays. Sentry SSR models are single function safety relays designed for a specific application such as 1 and 2 channel devices, OSSD devices or two-hand devices. Note: if an input is accepted it means that the door is closed, the light curtain is not interrupted, etc. give a machine time to apply breaking force before power is disconnected.įor models with 2 NO + 2 NO outputs, it is only the second pair of NO outputs that is delayed.įor models with 3 NO + 1 NC, all outputs are delayed. Some Sentry models have delayed outputs in order to e.g. Off - all inputs accepted, reset performed, outputs active The function of the LED in the light-button is the following:įlashing - all inputs are accepted, reset possible The light-button function is used for the multi-reset function, but can also be used for a standard reset button. This allows Sentry to drive larger contactors and saves the use of an intermediary contactor. The outputs have a switching capacity of up to 6A DC-13. The multi-reset function is available for all +24 VDC Sentry models offering manual reset ![]() This simplifies connection, minimizes cabling and unnecessary downtime. The multi-reset function enables reset of up to 10 Sentry safety relays using just one reset light-button. Spring loaded push-in terminals simplifies and minimizes installation time, and eliminates the need for retightening connections after transportation or in an application with vibrations. It is not possible to change reset function during operation by just flipping the switch. Switch for selection of the reset functionĪll models can be used in automatic reset and some models allow to choose manual reset, either by switch or by configuration, which simplifies connection. ![]() Pre-reset is an example of application.Īn accuracy of ± 1% allows a very precise time to be set in order to increase safety and minimize unnecessary downtime. Time reset activates the safety outputs for a maximum predefined time when the safety inputs are opened. The display minimizes troubleshooting by giving extensive information about internal faults, I/O faults, system faults, function faults and a log of the last 10 errors Time bypass activates the safety outputs for a maximum predefined time when the safety inputs are closed. The models with display are configurable and the user can choose between preset configurations and a custom configuration that can be protected by password. On/Off-delay are used to postpone the activation/deactivation of the safety outputs with a preset time delay. Several timer functions are available: On/Off-delay, time bypass and time reset. Available with spring-loaded push-in terminals or screw terminals Lighting and flashing of the reset button managed by the Sentry safety relay Multi-reset allows one reset button to reset up to 10 safety relays (+24 VDC models with manual reset function) Advanced timer functions (TSR10 and USR models) Display on front for configuration and error tracing (TSR10 and USR models) Manual or automatic reset selectable by switch on front (SSR models) Simple expansion of Pluto safe transistor outputs (BSR models) Use the “Selection table” tab or the filters in the “Product browser” tab below to find a suitable model for your application. They all have a display on the front which facilitates configuration and error tracing thanks to extensive indication. Sentry USR models are universal safety relays and the same model can be used with most safety devices. Sentry TSR can be used as expansion relays with timer function. Different timer functions are available depending on the model. Sentry TSR models are safety timers with an excellent accuracy. Some of them offer an off-delay function. Sentry SSR models are easy-to-use safety relays designed for specific applications such as 1 and 2 channel devices, OSSD devices and two-hand devices. Sentry BSR models are cost effective safety relays for basic applications such as monitoring of e-stop buttons and expansion of safety outputs when no timer function is needed.
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