Main Circuit Wiring; Main Circuit Wiring; Main Circuit Terminal Functions; Wire Gauges And Tightening Torque - Omron J1000 User 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 Type
R/L1
Main circuit power
S/L2
supply input
T/L3
U/T1
V/T2 Drive output
W/T3
B1
Braking resistor
B2
+1
DC reactor connection
+2
+1
DC power supply input
–
Ground
(2 terminals)
u

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 DC reactor or 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 TOBPC72060000 for braking unit or braking resistor unit wire gauges.
• Refer to UL Standards Compliance on page 218
n Single-Phase 200 V Class
Model
JZA
B0P1
R/L1, S/L2, U/T1, V/T2, W/T3, –, +1, +2,
B0P2
B1, B2,
B0P4
R/L1, S/L2, U/T1, V/T2, W/T3, –, +1, +2,
B0P7
B1, B2,
R/L1, S/L2, U/T1, V/T2, W/T3,
B1P5
–, +1, +2, B1, B2
n
Three-Phase 200 V Class
Model
JZA
20P1
R/L1, S/L2, T/L3, U/T1, V/T2, W/T3, –, +1,
20P2
20P4 +2, B1, B2,
20P7
SIEP C710606 33A OYMC AC Drive – J1000 User Manual
Table 3.1 Main Circuit Terminal Functions
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 reactor to this terminal.
For connecting a DC power supply.
Grounding Terminal
For 200 V class: 100 Ω or less
For 400 V class: 10 Ω or less
for information on UL compliance.
Table 3.2 Wire Gauge and Torque Specifications
Terminal Screw Size
M3.5
M4
M4
M4
Table 3.3 Wire Gauge and Torque Specifications
Terminal
Function
Table 3.2 through Table
Tightening
Torque
N•m (lb.in.)
0.8 to 1.0
(7.1 to 8.9)
1.2 to 1.5
(10.6 to 13.3)
1.2 to 1.5
(10.6 to 13.3)
1.2 to 1.5
(10.6 to 13.3)
Tightening
Screw
Torque
Size
N•m (lb.in.)
0.8 to 1.0
M3.5
(7.1 to 8.9)

3.6 Main Circuit Wiring

3.4.
-3
Applicable Recommended
Gauge
2
mm (AWG) mm
0.75 to 2.5
(18 to 14)
2.5 to 6
(14 to 10)
2.5 to 6.0
(14 to 10)
2.5 to 6.0
(14 to 10)
Applicable Recommended
Gauge
2
mm (AWG) mm
0.75 to 2.5
(18 to 14)
Reference
34
38
47
153
–
38
Gauge
3
2
(AWG)
2.5
(14)
2.5
(14)
4
(12)
6
(10)
Gauge
2
(AWG)
2.5
(14)
37