image/svg+xml CAUTION image/svg+xml Burn Hazard Do not touch a hot drive heatsink or external heatsink. Yaskawa recommends that you show a high temperature warning mark or warning sign on the external heatsink. If you touch a hot drive heatsink plate or external heatsink, it can burn you. Keep the drive heatsink plate temperature lower than the maximum temperature even when the ambient temperature is 50 °C (122 °F). Refer to Table 1 for the maximum temperature of the heatsink plate. When you operate the drive in an ambient temperature of 35 °C (95 °F) or higher, refer to Derating Depending on Ambient Temperature and derate the drive. Table 1. Maximum Temperature of the Heatsink Plate Model Maximum Temperature of the Heatsink Plate B001 - B012 90 °C (194 °F) 2001 - 2021 90 °C (194 °F) 2030 - 2070 80 °C (176 °F) 4001 - 4012 90 °C (194 °F) 4018 - 4038 80 °C (176 °F) Refer to Single-Phase 200 V Class, Three-Phase 200 V Class, and Three-Phase 400 V Class for the drive watt loss data. Refer to Monitor Heatsink Plate Temperature to monitor drive heatsink plate temperature.