Main Circuit Wiring; Main Circuit Wiring; Main Circuit Terminal Functions; Wire Gauges And Tightening Torque - YASKAWA J1000 Technical Manual

3.6

Main Circuit Wiring

This section describes the functions, specifications, and procedures required to safely and properly wire the main circuit of
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.
u

Main Circuit Terminal Functions

Terminal
R/L1
Main circuit power supply
S/L2
input
T/L3
U/T1
V/T2 Drive output
W/T3
B1
Braking resistor
B2
+1
DC link choke connection
+2
+1
DC power supply input
–
Ground
(2 terminals)
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Wire Gauges and Tightening Torque

Select the appropriate wires and crimp terminals from
Note: 1. Wire gauge recommendations based on drive continuous current ratings using 75 °C 600 Vac vinyl-sheathed wire assuming ambient
temperature within 30 °C and wiring distance less than 100 m.
2. Terminals +1, +2, –, B1 and B2 are for connecting optional devices such as a braking resistor. Do not connect other non-specified devices
to these terminals.
• Consider the amount of voltage drop when selecting wire gauges. Increase the wire gauge when the voltage drop is greater
than 2% of motor rated voltage. Ensure the wire gauge is suitable for the terminal block. Use the following formula to
calculate the amount of voltage drop:
• Line drop voltage (V) = 3 x wire resistance (Ω/km) x wire length (m) x current (A) x 10
• Refer to instruction manual TOBP C720600 00 for braking unit or braking resistor unit wire gauges.
• Refer to UL Standards Compliance on page 241
n Single-Phase 200 V Class
Model
Terminal
CIMR-JoBA
R/L1, S/L2, T/L3
U/T1, V/T2, W/T3
0001
–, +1, +2
0002
0003
B1, B2
R/L1, S/L2, T/L3
U/T1, V/T2, W/T3
–, +1, +2
0006
B1, B2
YASKAWA ELECTRIC SIEP C710606 31B YASKAWA AC Drive – J1000 Technical Manual
Table 3.1 Main Circuit Terminal Functions
Type
Connects line power to the drive.
Drives with single-phase 200 V input power use terminals R/L1 and S/L2 only (T/
L3 must not be used).
Connects to the motor.
Available for connecting a braking resistor or the braking resistor unit option.
These terminals are shorted at shipment. Remove the shorting bar between +1 and
+2 when connecting a DC link choke to this terminal.
For connecting a DC power supply.
Grounding Terminal
for information on UL compliance.
Table 3.2 Wire Gauge and Torque Specifications
Recomm. Gauge
AWG, kcmil
14
14
–
–
14
12
14
–
–
10
http://nicontrols.com
Function
Table 3.2 through Table 3.4.
Wire Range
AWG, kcmil
18 to 14
18 to 14
18 to 14
18 to 14
18 to 14
14 to 10
14 to 10
14 to 10
14 to 10
14 to 10

3.6 Main Circuit Wiring

Reference
36
41
50
168
–
41
-3
Tightening
Screw Size Torque
N•m (lb.in.)
0.8 to 1.0
M3.5
(7.1 to 8.9)
1.2 to 1.5
M4
(10.6 to 13.3)
3
39