7.7 Common Bypass Specifications
540 YASKAWA SIEPYAIH6B01A HV600 AC Drive Bypass Technical Reference
Item Specification
Heatsink Overheat
Protection
(Drive Mode)
The bypass stops when the thermistor detects an IGBT temperature more than approximately 100 °C (212 °F). The trip temperature level is different for
different models.
Stall Prevention
(Drive Mode)
Stall prevention is available during acceleration, deceleration, and during run.
Ground Fault
Protection
(Drive Mode)
Electronic circuit protection
Note:
This protection detects ground faults during run. The bypass will not provide protection when:
• There is a low-resistance ground fault for the motor cable or terminal block
• Energizing the bypass when there is a ground fault.
DC Bus Charge LED
(Drive Mode)
Charge LED illuminates when DC bus voltage is more than 50 V.
Table 7.16 Environment
Item
Specification
Area of Use Indoors
Ambient Temperature
Setting
IP20/UL Type 1: -10 °C to +40 °C (14 °F to 104 °F)
• Do not let the bypass freeze.
Humidity
95% RH or less
Do not let condensation form on the bypass.
Storage Temperature -20 °C to +70 °C (-40 °F to +158 °F) (short-term temperature during transportation)
Surrounding Area
Pollution degree 2 or less
Install the bypass in an area without:
• Oil mist, corrosive or flammable gas, or dust
• Metal powder, oil, water, or other unwanted materials
• Radioactive materials or flammable materials, including wood
• Harmful gas or fluids
• Salt
• Direct sunlight
Altitude
1000 m (3281 ft) maximum
Note:
Derate the output current by 1% for each 100 m (328 ft) to install the bypass in altitudes between 1000 m to 4000 m (3281 ft to 13123 ft).
It is not necessary to derate the rated voltage in these conditions:
• When you install the bypass at 2000 m (6562 ft) or lower
• When you install the bypass between 2000 m to 4000 m (6562 ft to 13123 ft) and ground the neutral point on the power supply.
Vibration
• 10 Hz to 20 Hz: 1 G (9.8 m/s
2
, 32.15 ft/s
2
)
• 20 Hz to 55 Hz:
D002 to D030, A002 to A028, B001 to B034: 0.6 G (5.9 m/s
2
, 19.36 ft/s
2
)
D046 to D273, A042 to A248, B040 to B302: 0.2 G (1.96 m/s
2
, 6.43 ft/s
2
)
Installation
Orientation
Install the bypass vertically for sufficient airflow to cool the bypass.
Table 7.17 Certifications and Standard Compliance
Item Specification
c-UL-us UL 508A
Table 7.18 Enclosure Ratings
Item Specification
Protection Design IP20/UL Type 1
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