This manual provides instructions for the installation, operation and maintenance of the ATS-22A automatic transfer switch control unit.
The ATS-22A is a multifunction programmable logic automatic transfer switch controller suitable for 1-phase and 3-phase systems. It monitors Normal and Standby power sources for voltage and frequency anomalies and provides seamless automatic transfer of the load between sources. The controller features a microprocessor-based design with a user-friendly LED display and membrane switch buttons for easy operation and configuration.
| System Voltage Requirement | 180 Vac or above |
|---|---|
| Time Delay Emergency to Normal (TDEN) | 00 - 999 sec |
| Time Delay Normal to Emergency (TDNE) | 00 - 250 sec |
| Time Delay Engine Start (TDES) | 00 - 30 sec |
| Time Delay Engine Cool-down (TDEC) | 00 - 250 sec |
| Time Delay Center OFF Position | 00 - 99 sec |
| Over Voltage Adjustment Range | 110 - 530 Vac |
| Under Voltage Adjustment Range | 80 - 470 Vac |
| Over Frequency Adjustment Range | 51 - 75 Hz |
| Under Frequency Adjustment Range | 40 - 59 Hz |
| Scheduled Exercise Duration | 1 week to 4 weeks |
The system voltage must be 180 Vac or above to use with optional KCU-40 or KCU-50 communication modules.
Without power, the controller can maintain the clock working for up to a week.
Yes, it can be programmed on-site or from a remote device like a PC or Smartphone using optional communication modules.