Main Circuit Wiring - YASKAWA iQpump Micro CIMR-PW Series User Manual

3.6 Main Circuit Wiring

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.
Main Circuit Terminal Functions
u
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)
Wire Gauges and Tightening Torques
u
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 shorter 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 427
Single-Phase 200 V Class
n
Drive
Model
R/L1, S/L2, T/L3
U/T1, V/T2, W/T3
BV0006 , 1, 2
B1, B2
R/L1, S/L2, T/L3
U/T1, V/T2, W/T3
, 1, 2
BV0010
B1, B2
50
Table 3.3 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.
Do NOT use T/L3.
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
Table 3.4 Wire Gauge and Torque Specifications
Terminal
Function
Table 3.4 through Table
for information on UL compliance.
Recomm.
Gauge
AWG, kcmil
12
14
–
–
10
10
14
–
–
10
YASKAWA TOEP YAIQPM 03B YASKAWA AC Drive - iQpump Micro User Manual
3.6.
-3
Screw
Wire Range
Size
AWG, kcmil
14 to 10
14 to 10
14 to 10 M4
14 to 10
14 to 10
14 to 10
14 to 10
14 to 10 M4
14 to 10
14 to 10
Reference
–
53
–
–
–
53
Tightening
Torque
N•m (lb.in.)
1.2 to 1.5
(10.6 to 13.3)
1.2 to 1.5
(10.6 to 13.3)