Wieland Electric has added new products with integrated timer functions to its 4000 Series of Universal Safety Relays. The 4000 Series Basic Device is equipped with safe integrated logic for monitoring safety functions, and can be used in emergency stop monitoring, protective door monitoring and elevator systems. The basic device with timer function can be used to control shutdown, monitoring of blocking facilities and safe time relay. Features also include: time function off-delay with triggering and without re-triggering, one or two channel activation, automatic start and monitored or non-monitored manual start.
4000 Series products are offered in either a slim-line uniform package of 22.5mm for use where space is at a premium or 45mm wide. Depending on the application and device chosen, the 4000 Series can be used up to category 4 (EN954-1), performance level PLe (EN ISO 13849-1) or SIL3