Appendix 2 Instructions For Ul And Cul; Motor Overload Protection - Mitsubishi Electric FR-D720-008 Installation Manuallines

Appendix 2 Instructions for UL and cUL

(Standard to comply with: UL 508C, CSA C22.2 No. 14)
1. General Precaution
The bus capacitor discharge time is 10 minutes. Before starting wiring or inspection, switch power off, wait for more than 10 minutes,
and check for residual voltage between terminal P/+ and N/- with a meter etc., to avoid a hazard of electrical shock.
2. Environment
Before installation, check that the environment meets following specifications.
Surrounding Air
Temperature*
Ambient humidity
Storage temperature
Ambience
Altitude, vibration
* Surrounding Air Temperature is a temperature measured at a measurement position in an enclosure. Ambient Temperature is a temperature outside an
enclosure.
3. Installation
The below types of inverter have been approved as products for use in enclosure and approval tests were conducted under the
following conditions. Design the enclosure so that the surrounding air temperature, humidity and ambience of the inverter will satisfy
the specifications.
Wiring protection
Integral solid state short circuit protection does not provide branch circuit protection. Branch circuit protection must be
provided in accordance with the National Electrical Code for the U.S. or the Canadian Electrical Code for Canada and any
additional codes. As specified, UL Class T fuses or any faster acting fuse with the appropriate rating or Listed UL 489 Molded
Case Circuit Breaker (MCCB) must be employed. (Refer to page 23)
4. Short circuit ratings
100V class
•
Suitable For Use in A Circuit Capable of Delivering Not More Than 100 kA rms Symmetrical Amperes, 132 V Maximum.
200V class
•
Suitable For Use in A Circuit Capable of Delivering Not More Than 100 kA rms Symmetrical Amperes, 264 V Maximum.
400V class
•
Suitable For Use in A Circuit Capable of Delivering Not More Than 100 kA rms Symmetrical Amperes, 528 V Maximum.
5. Wiring
For wiring the input (R/L1, S/L2, T/L3) and output (U, V, W) terminals of the inverter, use the UL Listed copper, stranded wires (rated
(167°F)
at 75°C) and round crimping terminals. Crimp the crimping terminals with the crimping tool recommended by the terminal
maker.

6. Motor overload protection

When using the electronic thermal relay function as motor overload protection, set the rated motor current to Pr. 9 "Electronic thermal
O/L relay". ( Refer to page 23
REMARKS
Safety stop function is not certified by UL.
24
-10°C to + 50°C (non-freezing)
90%RH or less (non-condensing)
-20°C to + 65°C
Indoors (No corrosive and flammable gases, oil mist, dust and dirt.)
2
Below 1000m, 5.9m/s or less at 10 to 55Hz (directions of X, Y, Z axes)
.)
enclosure
Measurement
Inverter
position
5cm
5cm
Measurement
position
5cm