Mitsubishi Electric FR-D720S-008SC, Оригинальная инструкция

Страница: 36 / 38

30
APPENDIX
A.2 Instructions for UL and cUL
(UL 508C, CSA C22.2 No.14)
A.2.1 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.
A.2.2 Environment
Before installation, check that the environment meets following specifications:
* Temperature measured at a measurement position in an enclosure.
A.2.3 Installation
According to the UL certification the frequency inverters FR-D700 SC have been approved as products for use in enclosure.
Design an enclosure so that the inverter ambient temperature, humidity and atmosphere satisfy the specifications of the above table.
Wiring protection
For installation in the United States, branch circuit protection must be provided in accordance with the National Electrical Code
and any applicable provincial codes.
For installation in Canada, branch circuit protection must be provided in accordance with the Canada Electrical Code and any applicable
provincial 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 28 )
A.2.4 Short Circuit Ratings
앫
200 V class
Suitable for use in a circuit capable of delivering not more than 100 kA rms symmetrical amperes, 264 V Maximum.
앫
400 V class
Suitable for use in a circuit capable of delivering not more than 100 kA rms symmetrical amperes, 528 V Maximum.
A.2.5 Wiring
For wiring the input (L1, N, 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) and round crimping terminals. Crimp the crimping terminals with the crimping tool recommended by the terminal
maker.
A.2.6 Motor Overload Protection
The frequency inverters FR-D700 SC are equipped with a UL certified internal electronic thermal relay function.
When using the electronic thermal relay as motor overload protection, set the rated motor current to Pr. 9
Electronic thermal O/L
relay . (Refer to page 28 )
Environme
n
t
Ambient
temperature *
–10 °C to +50 °C (non-freezing)
Enclosure
Ambient humidity
90 % RH or less (non-condensing)
Storage temperature –20 °C to +65 °C
Atmosphere
Indoors (free from corrosive gas, flammable gas, oil mist, dust and dirt)
Altitude
Maximum 1000 m above sea level
Vibration
5.9 m/s² or less at 10 to 55 Hz (directions of X, Y, Z axes)
NOTE
앫
Safety stop function is not certified by UL.
5 cm 5 cm
5 cm
5 cm 5 cm
5 cm
In
ver
ter
x = Measurement position