YASKAWA A1000 Series Quick Start Manual page 52

3 Electrical Installation
No.
Use the correct wire gauges for the main circuit.
• When using comparatively long motor cable, calculate the amount of voltage drop.
12
Motor rated voltage (V) x 0.02 ≥
3 x wire resistance (Ω/km) x cable length (m) x motor rated current (A) x 10
• If the cable between the drive and motor exceeds 50 m, adjust the carrier frequency set to C6-02 accordingly.
13 Properly ground the drive. Review page 42.
Tightly fasten all terminal screws (control circuit terminals, grounding terminals).
14
Refer to Wire Gauges and Tightening Torque on page
Set up overload protection circuits when running multiple motors from a single drive.
15
Note: Close MC1 through MCn before operating the drive (MC1 through MCn cannot be switched off during
run).
If using a dynamic braking option, install a magnetic contactor. Properly install the resistor, and ensure that
16
overload protection shuts off the power supply.
Verify phase advancing capacitors, input noise filters, or ground fault circuit interrupters are NOT installed on
17
the output side of the drive.
18 Use twisted-pair line for all drive control circuit wiring.
19
Ground the shields of shielded wiring to the GND
If using a 3-wire sequence, properly set parameters for multi-function contact input terminals S1 through S8,
20
and properly wire control circuits.
21 Properly wire any option cards.
Check for any other wiring mistakes.
22
Only use a multimeter to check wiring.
Properly fasten the control circuit terminal screws in the drive.
23
Refer to Wire Gauges and Tightening Torque on page
24 Pick up all wire clippings.
25 Ensure that no frayed wires on the terminal block are touching other terminals or connections.
26 Properly separate control circuit wiring and main circuit wiring.
27 Analog signal line wiring should not exceed 50 m.
28 Safe Disable input wiring should not exceed 30 m.
52
Power supply
Drive
Control circuit wiring
YASKAWA ELECTRIC TOEP C710616 21C YASKAWA AC Drive - A1000 Quick Start Guide
Item
Refer to Wire Gauges and Tightening Torque on page
-3
35.
MC1 OL1
M1
MC2 OL2
MC1 - MCn
M2
OL 1 - OL n
MCn OLn
Mn
terminal.
35.
35.
... magnetic contactor
... thermal relay
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