Insulate

No grounding necessary

Connect FG (frame ground) of the inverter.

NOTE 3: When the frequency setting signal is turned on and off with a contact, use a relay which will not cause contact malfunctions, even with the extremely weak currents and voltages, such as crossbar twin contacts, etc.

NOTE 4: Use relays which do not have contact defects at 24 V DC, 3 mA for the other terminals.

NOTE 5: Separate the main circuit wiring from the relay control circuit wiring. If they must cross, be sure that they cross at a right angle.

Main circuit power line

(R, S, T, U, V, W, PP, P, RB, N, L1, L2, L3, T1, T2, T3, +, -, etc.)

Right angle

Signal input line

(FM, CM1, PLC, P24, FW, 8, 7, 6, 5, 4, 3, 2, 1, H, O, OI, L, CM2, 12, 11, AL0, AL1, AL2)

Separate by 10 cm or more.

NOTE 6: Do not short between the terminals H and L and between the terminals P24 and CM1 of the control circuit.

NOTE 7: Insulate the common terminal L for frequency analog command input and the common terminal (COMMON) of the peripheral equipment such as the sequencer before starting use.

5-6

Page 26
Image 26
Hitachi J300U Series instruction manual