24
(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 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.
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
at 75°C)
(167°F) 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"
.
(
Appendix 2 Instructions for UL and cUL
Surrounding Air
Temperature*
-10°C to + 50°C (non-freezing)
enclosure
Ambient humidity
90%RH or less (non-condensing)
Storage temperature
-20°C to + 65°C
Ambience
Indoors (No corrosive and flammable gases, oil mist, dust and dirt.)
Altitude, vibration
Below 1000m, 5.9m/s
2
or less at 10 to 55Hz (directions of X, Y, Z axes)
REMARKS
y
Safety stop function is not certified by UL.
Measurement
position
Measurement
position
Inverter
5cm
5cm
5cm
