Main Circuit Wiring; Main Circuit Wiring; Main Circuit Terminal Functions; Protecting Main Circuit Terminals - YASKAWA E1000 Technical 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 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.

◆ Main Circuit Terminal Functions

Terminal
200 V
2A0004 to 2A0081
Class
Model
CIMR-E
400 V
4A0002 to 4A0044
Class
R/L1
S/L2
T/L3
R1-L11
S1-L21
T1-L31
U/T1
V/T2
W/T3
+2 • DC reactor
connection (+1, +2)
+1
(remove the shorting
bar between +1 and
+2)
–
• DC power supply
input
(+1, –)
+3

◆ Protecting Main Circuit Terminals

■
Insulation Cap
Use insulation caps when wiring the drive with crimp terminals. Take particular care to ensure that wiring does not touch
neighboring terminals or the surrounding case.
■
Insulation Barrier
Insulation barriers are packaged with drive model CIMR-E4A0414 through 4A1200 to provide added protection
between terminals. Yaskawa recommends using the insulation barriers provided to ensure proper wiring. See
for instructions on where the insulation barriers should be placed.
72
Table 3.2 Main Circuit Terminal Functions
Type
2A0110, 2A0138 2A0169 to 2A0415
4A0058 to 4A0072 4A0088 to 4A0675
Main circuit power supply input
not available
Drive output
not available
• DC power supply
input
• DC power supply input (+1, –)
(+1, –)
• Braking unit connection (+3, –)
not available
For 200 V class: 100 Ω or less
For 400 V class: 10 Ω or less
–
4A0930, 4A1200
Main circuit power
supply input
YASKAWA ELECTRIC SIEP C710616 35D YASKAWA AC Drive E1000 Technical Manual
Function
Connects line power to the drive
Connects to the motor
For connection
• of the drive to a DC power supply (terminals +1
and – are not EU or UL approved)
• of dynamic braking options
• of a DC reactor
Grounding terminal
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Figure 3.19