2.9Environmental specifications
2.9.1Ambient temperature
Ambient temperature is defined as the temperature of the environment immediately surrounding the drive. Actual drive case temperature should not exceed 69°C (156°F) within the operating ambient conditions.
Above 1,000 feet (305 meters), the maximum temperature is derated linearly to 112°F (44°C) at 10,000 feet (3,048 meters).
Operating: | 0° to 60°C (32° to 140°F) |
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Nonoperating: | |
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2.9.2Temperature gradient
Operating: | 20°C per hour (68°F per hour max), without condensation |
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Nonoperating: | 30°C per hour (86°F per hour max) |
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2.9.3Humidity
2.9.3.1Relative humidity
Operating: | 5% to 90% noncondensing (30% per hour max) |
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Nonoperating: | 5% to 95% noncondensing (30% per hour max) |
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2.9.3.2Wet bulb temperature
Operating: | All models | 37.7°C (99.9°F max) |
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Nonoperating: | STM3500630AS, STM3320620AS, STM3320820AS, | 37.7°C (99.9°F max) |
| STM3250824AS, STM3250820AS, STM3250310AS |
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| STM3250824AS, STM3160815AS, STM3160215AS, | 40°C (104°F max) |
| STM380815AS, STM380215AS and STM340215AS |
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2.9.4Altitude
Operating: | |
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Nonoperating: | |
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2.9.5Shock
All shock specifications assume that the drive is mounted securely with the input shock applied at the drive mounting screws. Shock may be applied in the X, Y or Z axis.
2.9.5.1Operating shock
STM3500630AS, STM3320620AS, STM3320820AS, STM3250820AS, STM3160815AS,
STM3160215AS, STM380815AS, STM380215AS and STM340215AS
These drives comply with the performance levels specified in this document when subjected to a maximum operating shock of 68 Gs based on
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