48
YASKAWA ELECTRIC
TOEP C710656 09D YASKAWA Power Regenerative Unit - R1000 Quick Start Guide
10 UL Standards
10
UL Standards
UL Standards
Figure 13
Figure 16 RU Mark
The RU mark applies to products in the United States and Canada and it means that UL has performed product testing
and evaluation and determined that their stringent standards for product safety have been met. For a product to receive
UL certification, all components inside that product must also receive UL certification.
UL Standards Compliance
This regenerative unit is tested in accordance with UL standard UL508C and complies with UL requirements. To ensure
continued compliance when using this regenerative unit in combination with other equipment, meet the following
conditions:
Conditions of Acceptability
1. The Current Suppression Reactor shall be installed on the input of R1000 Series device.
2. The R1000 (open type) device and its peripherals shall be installed in a suitable enclosure in the end use.
3. The R1000 Series of Power Regenerative devices shall be connected to a VFD which incorporates Solid State Short
Circuit Protection Circuitry and was found to comply with the High Fault Current Short Circuit Test without additional
testing when:
a) The R1000 series uses solid state short circuit protection circuitry for compliance with the Short Circuit Test,
Section 45 of UL508C, 3rd edition; and
4. Optional Power Coordinating Reactor may be specified in the end use application. An equivalent, UL Listed or
Recognized, Power Coordinating Reactor can be substituted in place of Yaskawa’s Power Coordinating Reactor
provided the minimum impedance is 3%, calculated as follows:
L = [0.03
×
E (Drive Input Rated Voltage)] / [
×
2
×
π
×
f (Input Rated Frequency)
×
I (System Rated Current)]
5. AC Input Fuse shall be connected to the input side of the Current Suppression Reactor.
Installation Area
Do not install the regenerative unit to an area greater than pollution degree 2 (UL standard).
Ambient Temperature
IP00/Open Type enclosure: -10 to +50
°
C
IP20/UL Type 1 enclosure: -10 to +40
°
C
Main Circuit Terminal Wiring
Yaskawa recommends using closed-loop crimp terminals on all regenerative unit models. To maintain UL/cUL approval,
UL Listed closed-loop crimp terminals are specifically required when wiring the regenerative unit main circuit terminals
on models 2A0035 to 2A0105, 4A0035 to 4A0300. Use only the tools recommended by the terminal manufacturer for
crimping. Refer to
Closed-Loop Crimp Terminal Recommendations on page 51
for closed-loop crimp terminal
recommendations. The wire gauges listed in the following tables are Yaskawa recommendations. Refer to local codes for
proper wire gauge selections.
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