Main Circuit Wire Gauges And Tightening Torques - YASKAWA GA700 Technical Manual

Terminal
Model
+2
• DC power supply input
+1
• DC reactor connection
-
+3
• 200 V: D class grounding (ground to 100 Ω or less)
• 400 V: C class grounding (ground to 10 Ω or less)
Note:
Use terminals B1 and - when connecting a CDBR-type control unit to drive models 2004 to 2138 and 4002 to 4168 with built-in braking
transistors.
◆

Main Circuit Wire Gauges and Tightening Torques

Select the wires to use in the main circuit wiring correctly.
Refer to Main Circuit Wire Gauges and Tightening Torques for European Standards on page 182
gauges and tightening torques to comply with the European standard.
Refer to Main Circuit Wire Gauges and Tightening Torques on page 204
torques to comply with the UL standard.
■
Wire Selection Precautions
WARNING! Electrical Shock Hazard. The leakage current of inverter models 4389A to 4675A, 2xxxB/C and 4xxxB/C will
exceed 3.5 mA. As written in the IEC/EN 61800-5-1:2007 standard, the power supply should be wired so that it automatically
turns off in the event the protective ground wire is disconnected, or else connect a protective ground wire with a cross sectional
area of at least 10 mm 2 (copper wire) or 16 mm
Consider wire voltage drops when selecting wire gauges. As a general rule, select wire gauges so voltage drops
will be within 2% of the rated voltage. Increase the wire gauge in accordance with the length of the cable when
there is a risk of voltage drops. Use the following formula to calculate line the amount of voltage drop:
Line voltage drop (V) =
■
Precautions during Wiring
• Use terminals B1 and - to connect a braking unit to drive models 2004 to 2138 and 4002 to 4168 with built-in
braking transistors. Use terminals +3 and - to connect a braking unit to drive models without built-in braking
transistors.
• Refer to "Yaskawa AC Drive Option Braking Unit, Braking Resistor Unit Instruction Manual
(TOBPC72060001)" for information regarding wire gauges and tightening torques when connecting a braking
resistor unit or braking unit.
• Use terminals +1 to connect a regenerative converter or regenerative unit.
NOTICE: Do not connect a braking resistor to terminals +1 or -. Failure to comply could damage the drive circuitry.
■
Main Circuit Wire Gauges and Tightening Torques
WARNING! Electrical Shock Hazard. The leakage current of inverter models 4389A to 4675A, 2xxxB/C and 4xxxB/C will
exceed 3.5 mA. As written in the IEC/EN 61800-5-1:2007 standard, the power supply should be wired so that it automatically
turns off in the event the protective ground wire is disconnected, or else connect a protective ground wire with a cross sectional
2
area of at least 10 mm (copper wire) or 16 mm
Note:
When connecting peripheral devices or options to terminals -, +1, +2, B1, B2, refer to the specific instruction manual of each device for
wire gauges. Contact Yaskawa or your nearest sales representative if the wire gauge recommended for the peripheral device or optional
product is out of the range of the applicable gauge for the drive.
YASKAWA ELECTRIC SIEP C710617 01B YASKAWA AC Drive GA700 Technical Manual
2004 - 2082
4002 - 4044
(+1 and -)
DC power supply input
(+1 and -)
(+1 and +2)
-
2 (aluminum wire). Failure to meet these standards may result in electric shock.
× wire resistance (Ω/km) × wiring distance (m) × motor rated current (A) × 10
2
(aluminum wire). Failure to meet these standards may result in electric shock.
Name
2110 - 2138 2169 - 2415
4060 - 4168 4208 - 4675
-
• DC power supply input
(+1 and -)
• Braking unit connection
(+3 and -)
for the wire gauges and tightening
2.12 Main Circuit Wiring
Function
Connecting peripheral
devices such as:
• DC power input
• Braking unit
• DC reactor
Note:
Remove the short bar
between the terminals
+1 and +2 when
connecting a DC
reactor.
Grounding.
for the wire
-3
.
55
2