Main Circuit Wiring - YASKAWA L1000A Quick Start Manual

3 Electrical Installation

◆ Main Circuit Wiring

This section describes the functions, specifications, and procedures required to safely and properly wire the main circuit
in the drive.
NOTICE: Only connect recommended devices to the drives braking transistor terminals. Failure to comply could result in damage to
the drive or braking circuit. Carefully review instruction manual TOBP C720600 0
NOTICE: Do not use the negative DC bus terminal "-" as a ground terminal. This terminal is at high DC voltage potential.
Improper wiring connections could damage the drive.
NOTICE: Equipment Hazard. Separate motor and/or braking circuit wiring (terminals, U/T1, V/T2, W/T3, +3, +2, +1,(-), B1, B2, from all
other wiring. Place motor wiring within its own conduit or cable tray with appropriate divider, and use shielded motor cable where
appropriate. Improper wiring practices could result in malfunction of drive due to electrical interference.
NOTICE: Equipment Hazard. Comply with proper wiring practices. The motor may run in reverse if the phase order is backward,
causing incorrect elevator direction movement. Connect motor input terminals U, V and W to drive output terminals U/T1,V/T2, and W/
T3. The phase order for the drive and motor should match.
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.
Main Circuit Terminal Functions
■
Terminal
200 V
20008 to 20075
Class
Model
400 V
CIMR-L 40005 to 40039
Class
U
600 V
50003 to 50027
Class
R/L1
S/L2
T/L3
U/T1
V/T2
W/T3
B1
B2
+2 • DC reactor connection
(+1, +2) (remove the
+1
shorting bar between
+1 and +2)
• DC power supply
–
input
(+1, –)
+3
For 200 V class: 100 Ω or less
For 400 V class: 10 Ω or less
For 600 V class: 10 Ω or less
Note: Use terminal B1 and - terminals when installing the braking unit (CDBR type) to the drives with built-in braking transistor
(20008 to 20115, 40005 to 40060, and 50003 to 50041).
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Table 9 Main Circuit Terminal Functions
Type
20085, 20115
40045, 40060
50032, 50041
Main circuit power supply input
Drive output
Braking resistor
Not available
DC power supply input
(+1, –)
Not available
YASKAWA ELECTRIC TOEP C710616 38H YASKAWA AC Drive-L1000A Quick Start Guide
 when connecting a braking option to the drive.
20145 to 20415
40075 to 40605
50052 to 50200
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 connection
• of the drive to a DC power supply
• DC power supply
(terminals +1 and – are not UL
input (+1, –)
approved)
• Braking unit
• of dynamic braking options
connection (+3, –)
Grounding terminal
Function Page
26
26
–
–
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