16 H9 ASD Installation and Operation Manual
Connecting the ASD
Refer to the section titled Installation Precautions on pg. 4 and the section titled Lead Length
Specifications on pg. 20 before attempting to connect the ASD and the motor to electrical power.
Power Connections
Contact With 3-Phase Input/Output Terminals May Cause An
Electrical Shock Resulting In Injury Or Loss Of Life.
See the Typical Connection Diagram on pg. 26 for a system I/O connectivity schematic.
An inductor (DCL) may be connected across the PO and PA/+ terminals to provide additional filtering.
When not used, a jumper must be connected across these terminals (see Typical Connection Diagram on
pg. 26).
PA/+ and PB are used for the DBR connection if using a braking resistor.
PC/- is the negative terminal of the DC bus.
R/L1, S/L2, and T/L3 are the 3-phase input supply terminals for the ASD.
U/T1, V/T2, and W/T3 are the output terminals of the ASD that connect to the motor.
The location of the Charge LED for the smaller typeform ASD is provided in Figure 2. The Charge
LED is located on the front door of the enclosure of the larger ASDs.
Figure 2. Typical H9 ASD Input/output Terminals and the Grounding Capacitor Switch.
Charge LED
Grounding Capacitor Switch — Pull for Small capacitance/push for Large capacitance.
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