YASKAWA iQpump1000 Installation & Start?Up Manual page 26

i.4 Electrical Installation
u
Protecting Main Circuit Terminals
n Insulation Caps or Sleeves
Use insulation caps or sleeves when wiring the drive with crimp terminals. Take particular care to ensure that the wiring does
not touch nearby terminals or the surrounding case.
n Insulation Barrier
Insulation barriers are packaged with drive models 4A0414 through 4A1200 to provide added protection between terminals.
Yaskawa recommends using the provided insulation barriers to ensure proper wiring. Refer to
placement of the insulation barriers.
u
Main Circuit Wire Gauges and Tightening Torques
Use the tables in this section to select the appropriate wires and crimp terminals.
Gauges listed in the tables are for use in the United States.
Note: 1. Wire gauge recommendations based on drive continuous current ratings (ND) using 75 °C 600 Vac vinyl-sheathed wire assuming ambient
temperature within 40 °C and wiring distance less than 100 m.
2. Terminals ⊕1, ⊕2, ⊕3, ⊖, B1 and B2 are for connecting optional power devices. Use caution to connect only approved devices to the
correct terminal(s).
• Consider the amount of voltage drop when selecting wire gauges. Increase the wire gauge when the voltage drop is greater
than 2% of motor rated voltage. Ensure the wire gauge is suitable for the terminal block. Use the following formula to
calculate the amount of voltage drop:
Line drop voltage (V) = 3 × wire resistance (Ω/km) × wire length (m) × current (A) × 10
• Refer to instruction manual TOBPC72060000 or TOBPC72060001 for braking transistor option or braking resistor option
wire gauges.
• Use terminals ⊕1 and ⊖ when connecting a regenerative converter or a regen unit.
NOTICE: Do not connect a braking resistor to terminals
• Use terminals B1 and ⊖ when installing a CDBR-type braking unit on drives with built-in braking transistors (models
2A0004 to 2A0138, 4A0002 to 4A0072, and 5A0003 to 5A0052).
NOTICE: Do not connect a braking resistor to terminals
• Refer to UL Standards Compliance on page 103
Yaskawa recommends using closed-loop crimp terminals on all drive models. UL/cUL approval requires the use of closed-
loop crimp terminals when wiring the drive main circuit terminals on models 2A0110 to 2A0415 and 4A0058 to 4A1200. Use
only the tools recommended by the terminal manufacturer for crimping.
103 for closed-loop crimp terminal recommendations.
The wire gauges listed in the following tables are Yaskawa recommendations. Refer to local codes for proper wire gauge
selections.
26
Insulation Barrier
Figure i.18 Installing Insulation Barriers
⊕ 1 or ⊖ . Failure to comply may cause damage to the drive circuitry.
⊕ 1 or ⊖ . Failure to comply may cause damage to the drive circuitry.
for information on UL compliance.
YASKAWA TOEP YAIP1W 02E YASKAWA AC Drive - iQpump1000 Installation & Start-up Guide
Figure i.18
-3
Refer to Closed-Loop Crimp Terminal Size on page
for instructions on