16 UL Standards
102 YASKAWA TOEPC71061723A YASKAWA AC Drive CR700 Quick Start Guide
16 UL Standards
Figure 16.1 UL/cUL Mark
The UL/cUL Mark indicates that this product satisfies stringent safety standards. This mark appears on products
in the United States and Canada. It shows UL approval, indicating that it has been determined that the product
complies with safety standards after undergoing strict inspection and assessment.
You must use UL Listed or UL Recognized parts for all primary components that are built into electrical
equipment that has UL approval.
This product has been tested in accordance with UL standard UL61800-5-1, and has been verified to be in
compliance with UL standards.
Machines and devices integrated with this product must satisfy the following conditions for compliance with UL
standards.
◆ Area of Use
Install this product in a location with Overvoltage Category III and pollution degree 2 or less as specified in
UL61800-5-1.
■ Ambient Temperature Setting
Maintain the ambient temperature within the following ranges according to the enclosure type.
• IP20/UL Type 1: -10 °C to +40 °C (14 °F to 104 °F)
• IP20/UL Open Type: -10 °C to +50 °C (14 °F to 122 °F)
◆ Wiring to the Main Circuit Terminal
Wire the main circuit terminal block correctly in accordance with the instructions in the manual.
Be sure to use UL approved closed-loop crimp terminals for drive models 2346 to 2415 and 4304 to 4605 to
maintain compliance with the UL standard. Use the tools recommend by the terminal manufacturer to crimp the
closed-loop crimp terminal. Refer to Closed-Loop Crimp Terminals on page 113 for details about closed-loop
crimp terminal (UL compliant products).
Refer to Three-Phase 200 V Class on page 104 and Three-Phase 400 V Class on page 108 to select wire gauge.
Read the following instructions before wiring the terminal block.
■ Notes on Wiring the Main Circuit Terminal Block
• Use copper wire. Do not use alumnium or other non-copper wire.
• Remove all unwanted objects that are near the terminal block connections.
• Remove the insulation from the connection wires to the wire stripping lengths shown in the manual.
• Do not use bent or crushed wires. Remove the damaged end of the wire before you use it.
• Do not solder stranded wire.
• If you use stranded wire, make sure that all of the wire strands are in the connection. Also, do not twist the
stranded wire too much.
• Put the wire all the way into the terminal block. Remove the insulation from the wire to the recommended wire
stripping length to fit the wire with insulation in the plastic housing.
• The tightening torque is different for different terminals. Tighten the screws to the specified tightening torque.
• Use a torque driver, torque ratchet, or torque wrench for the screws. A slotted driver or a hex tool will be
necessary to wire the screw clamp terminal. Use applicable tools as specified by the recommended conditions in
the product manual.
• If you use power tools to tighten the terminal screws, use a low speed setting (300 to 400 r/min).
• Users can purchase wiring tools from Yaskawa. Contact Yaskawa or your nearest sales representative for more
information.
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