Protecting main circuit terminals, Main circuit wire gauges and tightening torque, Table 3.2 – Yaskawa CIMR-AU 200V Drives User Manual
Page 120
Table 3.2 Input Fuses for Models 4A0930 and 4A1200
Voltage
Class
Model
Selection
Input Fuse (Example)
Input Voltage
Current
Pre-arc
I
2
t (A
2
s)
Model
Manufacturer
Rating
Pre-arc
I
2
t (A
2
s)
Three-
Phase
400 V
Class
4A0930
480 V
1500 A
140000 to
3100000
CS5F-1200
Fuji Electric
AC500 V, 1200 A
276000
FWH-1200A
Bussman
AC500 V, 1200 A
–
4A1200
480 V
1500 A
320000 to
3100000
CS5F-1500
Fuji Electric
AC500 V, 1500 A
351000
FWH-1600A
Bussman
AC500 V, 1600 A
–
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
for instructions on
placement of the insulation barriers.
Insulation Barrier
Figure 3.23 Installing Insulation Barriers
u
Main Circuit Wire Gauges and Tightening Torque
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
-3
• Refer to instruction manual TOBP C720600 00 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
⊕1 or ⊖. Failure to comply may cause damage to the drive circuitry.
• 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).
3.6 Main Circuit Wiring
120
YASKAWA ELECTRIC TOEP C710616 41E YASKAWA AC Drive - A1000 Quick Start Guide