HZ170A60107 by Danaher

The HZ170A60107 is a panel-mount preset counter produced by Danaher within the Timers and Controllers series. In automated assembly lines or batch-processing equipment, the unit tallies input pulses and then actuates its internal clutch to initiate the next machine step once the target value is reached. This arrangement allows sequence control without a separate PLC card, providing a self-contained device for simple counting or timing interlocks.

The electromechanical clutch engages in the reverse direction and draws only 10.5 VA while holding, so control transformers are lightly loaded during dwell periods. From an idle state, the armature seats within 50 ms, limiting mechanical lag between the final count and contact transfer. The input circuit recognizes a minimum on-time of 40 ms and requires 80 ms of off-time to avoid multiple registrations, making it suitable for slow contacts or contacts without debounce. Maximum throughput reaches 500 counts per minute, matching conveyors or indexers that produce one pulse per product at moderate speeds. Count accuracy is specified at 100%, and a front-panel dial lock prevents accidental setpoint changes during operation. Motor inrush draws 26 VA when the internal drive first accelerates, and the reset solenoid clears the register electrically within 500 ms.

The device supports up to 100 counts before resetting, and its output relay can switch resistive loads up to 10 A at 120 VAC, providing sufficient capacity for direct connection to small contactors or pilot valves. A 120 VAC supply powers both the synchronous motor and logic coil, so no separate DC source is needed. The housing fits a standard 1/8-DIN panel opening and has a front width of 96.82 mm, allowing installation in compatible control panels. Panel studs secure the housing from the rear without requiring front-access fasteners. The rated mounting orientation is vertical to support consistent motor lubrication during operation.