HAT552/HAT553 DUAL POWER ATS CONTROLLER USER MANUAL
HAT552/HAT553 ATS Controller 2020-05-14 Version 1.1 Page 33 of 35
Fig. 13 Breaker (ACB) Application Diagram
Table 26 Related Settings
MCH: Energy-saving motor; MN: Undervoltage thread off; MX: Open coil; XF: Close coil;
A Part of Parameter Setting
Switch Type Setting
Two breakings (HAT553)
NOTE
: Above diagrams are only examples; Users shall connect wires based on the real occasions.
Attached illustration for LO, NO connection inside controller:
HAT553/HAT552 controller has automatic transfer function of ATS power supply inside. Only if one
voltage of A power and B power is normal, by transfer between N/O contact and N/C contact of
intermediate relay 1 and intermediate relay 2 ensure ATS power supply normal. The output is LO, NO.
Output value is LN voltage value of A power or LN voltage value of B power. Internal wiring is as below:
R1, N1 is R, AN input of A power; R2, N2 is R, BN input of B power.
Fig. 14 Internal LO, NO Connection
