3.6 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.
Note:
Refer to Single-Phase Derating on page 247
for applying and protecting the drive when using single-phase input power.
Refer to Input Fuse Installation on page 347
for details on fuse selection.
u
Factory Recommended Branch Circuit Protection
WARNING!
Fire Hazard. Install adequate branch circuit protection according to applicable local codes and this manual. Failure to comply
could result in fire and damage to the drive or injury to personnel. The device is suitable for use on a circuit capable of delivering not more
than 100,000 RMS symmetrical amperes, 240 Vac (200 V class) and 480 Vac (400 V class), when protected by branch circuit protection
devices specified in this manual.
Branch circuit protection shall be provided by any of the following: Non-time delay Class J, T, or CC fuses sized at 300% of the drive input
rating, or Time delay Class J, T, or CC fuses sized at 175% of the drive input rating, or MCCB sized at 200% maximum of the drive input
rating.
Yaskawa recommends installing branch circuit protection according to maintain compliance with UL508C. Semiconductor
protective type fuses are preferred. Alternate branch circuit protection devices are also listed in this manual.
Recommended Branch Circuit Protection on page 336
u
Main Circuit Terminal Functions
Table 3.1 Main Circuit Terminal Functions
Terminal
Type
Function
Page
200 V
Class
Drive Model
2A0004 to 2A0081 2A0110 to 2A0138 2A0169 to 2A0415
400 V
Class
4A0002 to 4A0044
4A0058, 4A0072
4A0088 to 4A0675
600 V
Class
5A0003 to 5A0032 5A0041 to 5A0052 5A0062 to 5A0242
R/L1
Main circuit power supply input
Connects line power to the drive
S/L2
T/L3
U/T1
Drive output
Connects to the motor
V/T2
W/T3
B1
Braking resistor
Not available
Available for connecting a braking
resistor or a braking resistor unit option
–
B2
+2
• DC link choke
connection
(+1, +2)
(remove the
shorting bar
between
+1 and +2)
• DC power supply
input
(+1, −)
Not available
For connecting:
• the drive to a DC power supply
(ter1 and – are not EU/CE
or UL approved)
• dynamic braking options
• a DC link choke
–
+1
DC power supply
input
(+1, −)
• DC power supply
input (+1, −)
• Braking unit
connection (+3, −)
–
+3
Not available
For 200 V class: 100 Ω or less
For 400 V class: 10 Ω or less
For 600 V class: 10 Ω or less
Grounding terminal
Note:
Use terminals B1 and – when installing a CDBR-type braking unit on drives with built-in braking transistors (Models 2A0004 to 2A0138,
4A0002 to 4A0072, and 5A0003 to 5A0052).
3.6 Main Circuit Wiring
YASKAWA
TOEP YAIP1W 01A YASKAWA AC Drive - iQpump1000 Quick Start Guide
85
3
Electrical Installation
Содержание iQpump1000
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