GE C11, AF-300 manual Connecting the main circuit and ground terminals

2-3-2 Connecting the main circuit and ground terminals

Table 2-3-1 Functions of main circuit and ground terminals

Symbol	Name	Explanation
L1/R,L2/S,L3/T	Main power supply input	Connects 3-phase power.(3-phase 230V input)
L1/L,L2/N		Connects single-phase power. (Single-phase 230V input)
U, V, W	Drive output	Connects 3-phase motor.
P1, P(+)	For connection of DC	Connects input power- factor correcting DC reactor
	reactor	(optional).
P(+), N(-)	For DC intermediate circuit	Connected to DC link circuit terminal
		(for DC bus connection).
G	For drive grounding	Ground terminal for drive chassis (case).

(1) Main power supply input terminal

3-phase 230V [L1/R,L2/S,L3/T] Single-phase 230V [L1/L,L2/N]

1Connect the main power supply input terminals to the power supply via a molded case circuit breaker for circuit protection or earth leakage circuit breaker. An earth- leakage circuit breaker which can also detect DC current

is recommended. Phase-sequence matching is unneces- sary.

2It is recommended that a magnetic contactor is connected

to prevent any failure or accident from becoming serious by disconnecting the drive from the power supply when the drive protective function operates.

3Do not turn on or off the main power supply to start or stop the drive; instead, use the control circuit terminal FWD/REV or the RUN/STOP key on the keypad panel. If it is unavoidable to turn the main power supply on or off to start or stop the drive, it must not exceed once per hour.

G L1/R L2/S L3/T P1 P(+)

For 3-phase 230V input

G L1/L L2/N P1 P(+)

For single-phase 230V input

AF-300C11

P(+) N(-) U V W G

Figure 2-3-1 Arrangement of

main circuit and ground termi-

nals

(2)Drive output terminal [U, V, W]

1 Connect these terminals to the 3-phase motor with the correct phase-sequence. If a motor rota- tion direction does not correspond to the correct rotation direction, exchange any two of the U, V,

and W phases.

2Do not connect a phase-advance capacitor or surge absorber to the drive output.

3A very long wiring length between the drive and the motor causes a high frequency current to flow due to floating capacity between cables, making the drive trip, increasing the leakage current and deteriorating the accuracy in the current display. To prevent such trouble, the wir- ing length to the motor should not exceed 165 feet (50 m).

When the drive is operated in the low noise mode (carrier frequency: 8 to 15 kHz) and the wir- ing length is long, add an optional output circuit filter.

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