Yaskawa U1000 Industrial MATRIX Drive - Manual (Page 23)

u Main Circuit Connection Diagram
Refer to Figure i.13 when wiring the main circuit of the drive. Connections may vary based on drive capacity. The DC power
supply for the main circuit also provides power to the control circuit.
Input filter
R/L1
S/L2
T/L3
U/T1
V/T2
W/T3
Control
board
Bidirectional IGBT
Control power supply
p1
n1
Figure i.13 Connecting Main Circuit Terminals
u 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 lifetime 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.
u Main Circuit Terminal Functions
Table i.4 Main Circuit Terminal Functions
Drive Model 2o0028 to 2o0248 4o0011 to 4o0414
Function Page
Terminal Type
R/L1
Main circuit power supply input Connects line power to the drive 21 S/L2
T/L3
U/T1
Drive output Connects to the motor 21 V/T2
W/T3
p1, n1 Momentary power loss recovery unit input
Available for connecting a momentary power
loss recovery unit option
–
100 Ω or less 10 Ω or less Grounding terminal 29
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.
i.4 Electrical Installation
YASKAWA ELECTRIC TOEP C710636 04C U1000 Industrial MATRIX Drive Quick Start Guide 23