YASKAWA A1000 Series Quick Start Manual page 42

3 Electrical Installation
Ground Wiring
Follow the precautions to wire the ground for one drive or a series of drives.
WARNING! Electrical Shock Hazard. Always use a ground wire that complies with technical standards on electrical equipment and
minimize the length of the ground wire. Improper equipment grounding may cause dangerous electrical potentials on equipment
chassis, which could result in death or serious injury.
Ω
WARNING! Electrical Shock Hazard. Be sure to ground the drive ground terminal (200 V class: Ground to 100 or less, 400 V class:
Ω
Ground to 10 or less). Improper equipment grounding could result in death or serious injury by contacting ungrounded electrical
equipment.
NOTICE: Do not share the ground wire with other devices such as welding machines or large-current electrical equipment. Improper
equipment grounding could result in drive or equipment malfunction due to electrical interference.
NOTICE: When using more than one drive, ground multiple drives according to instructions. Improper equipment grounding could
result in abnormal operation of drive or equipment.
Refer to Figure 29 when using multiple drives. Do not loop the ground wire.
Figure 29
OK OK Not Good
Figure 29 Multiple Drive Wiring
Wiring the Main Circuit Terminal
WARNING! Electrical Shock Hazard. Shut off the power supply to the drive before wiring the main circuit terminals. Failure to comply
may result in death or serious injury.
Wire the main circuit terminals after the terminal board has been properly grounded.
Models CIMR-A 2A0004 through 0081 and 4A0002 through 0044 have a cover placed over the DC bus and braking
circuit terminals prior to shipment to help prevent miswiring. Cut away covers as needed for terminals using wire cutters.
Figure 30
A
A – Protecting Cover
Figure 30 Protecting Cover to Prevent Miswiring (CIMR-A 2A0056)
Main Circuit Connection Diagram
Refer to Main Circuit Connection Diagram on page 28 when wiring terminals on the drive's main power circuit.
WARNING! Fire Hazard. The braking resistor connection terminals are B1 and B2. Do not connect braking resistors to any other
terminals. Improper wiring connections could cause the braking resistor to overheat and cause death or serious injury by fire. Failure to
comply may result in damage to the braking circuit or drive.
Control Circuit Terminal Block Functions
■
Drive parameters determine which functions apply to the multi-function digital inputs (S1 to S8), multi-function digital
outputs (M1, M2), multi-function photocoupler outputs (P1, P2), multi-function analog inputs (A1 to A3), and multi-
function analog monitor output (FM, AM). The default setting is listed next to each terminal in Figure 10.
WARNING! Sudden Movement Hazard. Always check the operation and wiring of control circuits after being wired. Operating a drive
with untested control circuits could result in death or serious injury.
WARNING! Confirm the drive I/O signals and external sequence before starting test run. Setting parameter A1-06 may change the I/O
terminal function automatically from the factory setting. Refer to Application Selection on page 63. Failure to comply may result in
death or serious injury.
Input Terminals
Table 10 lists the input terminals on the drive. Text in parenthesis indicates the default setting for each multi-function
input.
42 YASKAWA ELECTRIC TOEP C710616 21C YASKAWA AC Drive - A1000 Quick Start Guide