Main Circuit Terminal Functions; Wire Selection - YASKAWA GA800 Series Technical Reference

◆

Main Circuit Terminal Functions

Refer to Table 3.2 for the functions of drive main circuit terminals.
Terminal
2004 - 2082
Model
4002 - 4044
R/L1
S/L2 Main circuit power supply input
T/L3
U/T1
V/T2 Drive output
W/T3
B1
Braking resistor connection
B2
+2
• DC power supply input
(+1 and -)
+1
• DC reactor connection
(+1 and +2)
-
+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 - to connect a CDBR-type control unit to drive models 2004 to 2138 and 4002 to 4168 that have built-in braking
transistors.
◆

Wire Selection

Select the correct wires for main circuit wiring.
Refer to Main Circuit Wire Gauges and Tightening Torques on page 216
specified by European standards.
Refer to Wire Gauge and Torque Specifications for UL Listing on page 72
specified by UL standards.
■
Wire Selection Precautions
WARNING! Electrical Shock Hazard. Make sure that the protective ground wire conforms to technical standards and local safety
regulations. The IEC/EN 61800-5-1:2007 standard specifies that you must wire the power supply to automatically de-energize when
the protective ground wire disconnects. You can also connect a protective ground wire that has a minimum cross-sectional area of
10 mm 2 (copper wire) or 16 mm
death. The leakage current of the drive will be more than 3.5 mA in drive models 4414 to 4720.
Think about line voltage drop before selecting wire gauges. Select wire gauges that drop the voltage by 2% or less of
the rated voltage. Increase the wire gauge and the cable length when the risk of voltage drops increases. Calculate line
voltage drop with this formula:
Line voltage drop (V) =
■
Precautions during Wiring
• Use terminals B1 and - to connect braking units to drives that have built-in braking transistors (models 2004 to
2138 and 4002 to 4168). Use terminals +3 and - to connect braking units to drives that do not have built-in braking
transistors.
YASKAWA SIEPC71061737B GA800 Drive Technical Reference
Table 3.2 Main Circuit Terminal Functions
2110 - 2138
4060 - 4168
DC power supply input (+1
and -)
-
2 (aluminum wire). If you do not obey the standards and regulations, it can cause serious injury or
× wire resistance (Ω/km) × wiring distance (m) × motor rated current (A) × 10
Name
2169 - 2415
4208 - 4414
-
-
• DC power supply input (+1 and -)
• Braking unit connection (+3 and -)
for wire gauges and tightening torques as
for wire gauges and tightening torques as
3.3 Main Circuit Wiring
- Function
4477 - 4720
To connect a commercial
power supply.
To connect a motor.
To connect a braking resistor
or braking resistor unit.
To connect peripheral
devices, for example:
• DC power input
• Braking unit
• DC link choke
Note:
Remove the jumper
between terminals +1
and +2 to connect a DC
link choke.
To ground the drive.
-3 .
3
71