YASKAWA U1000 Series, Technical Manual

Page: 89 / 638

3.8 Main Circuit Wiring
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YASKAWA ELECTRIC SIEP C710636 02B YASKAWA U1000 Technical Manual 89
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 control power supply 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
■
CIMR-2  0028 to 2  0248, 4  0011 to 4  0590
Table 3.2 Main Circuit Terminal Functions (CIMR-2  0028 to 2  0248, 4  0011 to 4  0590)
■
CIMR-4

0720 to 4

0930
Table 3.3 Main Circuit Terminal Functions (CIMR-4  0720 to 4  0930)
■
Harmonic Filter Module
Table 3.4 Main Circuit Terminal Functions (EUJ7118  .  )
Voltage Class Three-Phase 200 V Class Three-Phase 400 V Class
Function Page CIMR-U  2  0028 to 2  0248 4  0011 to 4  0590
Terminal Type
R/L1, S/L2, T/L3
Main circuit power supply input Connects line power to the drive. 71 , 73
U/T1, V/T2, W/T3 Drive output Connects to the motor. 71 , 73
p1, n1
Momentary power loss recovery unit input
These are the DC voltage terminals that connect to a momentary
power loss recovery unit.
71 , 73
100 Ω or less 10 Ω or less Grounding terminal 97
Voltage Class Three-Phase 400 V Class
Function Page CIMR-U  4  0720 to 4  0930
Terminal Type
X, Y, Z Main circuit power supply input 1 These are the power supply input terminals that connect to the harmonic filter module.
75 , 77
X1, Y1, Z1 Main circuit power supply input 2 These are the power supply input terminals that connect to the harmonic filter module.
r1/ 11, 1/ 21,
t1/ 31
Power Supply Voltage Detection
Input
These terminals are to connect to the harmonic filter module and to detect the power supply voltage
order and voltage levels.
U/T1, V/T2, W/T3 Drive output Connects to the motor.
p1, n1
Momentary power loss recovery
unit input
These are the DC voltage terminals that connect to a momentary power loss recovery unit.
p2, n2 DC voltage output These are the DC voltage terminals that connect to the harmonic filter module. 75 , 77
10 Ω or less Grounding terminal 97
Terminal Type Function Page
R/L1, S/L2, T/L3 Main circuit power supply input Connects line power to the harmonic filter module.
75 , 77
r1/ 11, 1/ 21,
t1/ 31
Power Supply Voltage Detection
Input
These terminals are to connect to the drive models CIMR-U  4  0720 to 4  0930 and to detect the
power supply voltage order and voltage levels.
X, Y, Z Filter module output 1
These are the harmonic filter module output terminals that connect to the drive models
CIMR-U
 4  0720 to 4  0930.
X1, Y1, Z1 Filter module output 2
These are the harmonic filter module output terminals that connect to the drive models
CIMR-U
 4  0720 to 4  0930.
p2, n2 DC voltage output
These are the DC voltage output terminals that connect to the drive models CIMR-U  4  0720 to
4  0930.
10
Ω
or less Grounding terminal 97
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