Main Circuit Wiring; Main Circuit Wiring; Main Circuit Terminal Functions; Protecting Main Circuit Terminals - YASKAWA Z1000 User Manual

3.8 Main Circuit Wiring

3.8

Main Circuit Wiring

This section describes the functions, specifications, and procedures required to safely and properly wire the main circuit in
the drive.
NOTICE: Do not solder the ends of wire connections to the drive. Soldered wiring connections can loosen over time. Improper wiring practices
could result in drive malfunction due to loose terminal connections.
NOTICE: Do not switch the drive input to start or stop the motor. Frequently switching the drive on and off shortens the life of the DC bus
charge circuit and the DC bus capacitors, and can cause premature drive failures. For the full performance life, refrain from switching the
drive on and off more than once every 30 minutes.
Refer to Factory Recommended Branch Circuit Protection for UL Compliance on page 255
u

Main Circuit Terminal Functions

Terminal
Drive Model 5A0003 to 5A0032
R/L1
S/L2
T/L3
U/T1
V/T2
W/T3
B1
B2
⊕2
• DC link choke
connection
⊕1
(⊕1, ⊕2)
(remove the shorting
bar between
⊕1 and ⊕2)
⊖
• DC power supply
input
(⊕1, ⊖)
⊕3
Use terminals B1 and ⊖ when installing a CDBR-type braking unit on drives with built-in braking transistors (Models 5A0003 to 5A0052).
Note:
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.
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Table 3.1 Main Circuit Terminal Functions
Type
5A0041, 5A0052
Main circuit power supply input
Drive output
Braking resistor
Not available
DC power supply input
(⊕1, ⊖)
Not available
10 Ω or less
5A0062 to 5A0242
Connects line power to the drive
Connects to the motor
Available for connecting a braking
Not available
resistor or a braking resistor unit option
For connecting:
• DC power supply
• the drive to a DC power supply
input (⊕1, ⊖)
• dynamic braking options
• Braking unit
• a DC link choke
connection (⊕3, ⊖)
Grounding terminal
YASKAWA TOEP YAIZ1U 03B YASKAWA AC Drive – Z1000 User Manual
for details on fuse selection.
Function Page
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