S628-50002 by Danaher

The S628-50002 is a multifunction timer and counter produced by Danaher within the Timers and Controllers series. Installed in an equipment panel, it accepts machine signals, measures elapsed intervals, and drives connected devices so repetitive operations occur with consistent timing. It is suitable for assembly lines, packaging cells, material-handling stations, and other automated systems that require local timing or counting functions. Front-mounted keys allow operators to configure the module without opening the equipment panel.

The controller fits a standard panel cutout and uses screw terminals for power and input/output wiring. Its bezel measures 96 mm wide and 48 mm high, providing a compact front-panel footprint. The enclosure has a depth of 110 mm, which must be considered when routing wires or positioning nearby components inside the cabinet. With a mass of 0.56 lb, the unit places little load on lightweight operator panels. Its internal circuitry consumes 4 W, reducing the additional demand placed on the cabinet power supply. A five-digit, 7-segment LED display uses characters that are 18 mm tall, making values easy to read from across a work area. The 14-bit input resolution provides precise count scaling, while a 250 ms sampling interval records process changes at quarter-second intervals. Proper installation of the required gasket provides panel sealing, and the screw terminals support straightforward field wiring without specialized plugs.

The transistor driver can switch loads up to 30 VDC, making it suitable for compatible low-voltage control devices. An SPDT relay contact provides an isolated Form C interface for auxiliary circuits such as stack lights, alarms, or pneumatic valves. The unit can operate at temperatures up to 55 °C, allowing use in warm control enclosures. Internal arithmetic processes counts and time bases with the available input precision, helping the device maintain accurate values over extended operating periods. The timer and counter functions can manage local machine cycles or provide supplemental control when the main automation system has limited input capacity.