Siemens SINAMICS G180 - Threshold Values for Fan Control System; Derating; Current Derating

Technical data
C.11 Threshold values for fan control system
Installation and Operating Instructions SINAMICS G180
206 Operating Instructions, 02/2019, 4BS0751-007
C.11
Threshold values for fan control system
The fan control system detects the three following states: OFF, SLOW and FAST.
● OFF: The fans are OFF if the unit is not switching and all relevant temperatures are below
the thresholds for FAST.
● SLOW: The fans operate slowly if the unit is turned on (= is switching) and all relevant
temperatures are below the thresholds for FAST.
● FAST: The fans operate fast if one of the relevant temperatures is higher than the
threshold for FAST irrespective of whether or not the unit is turned on.
Table C- 5 Threshold values for fan control system
Fan
fast
slow
off
Clock enable
--
Yes
No
Parameter P-INVERTER DATA.fan
= fast
= slow
= T-contrl.
Reactor prewarning
Yes
No
No
T-CPU
≥ 70 °C
≤ 70 °C (-5 °C)
≤ 50 °C (-5 °C)
T cabinet max.
≥ 47 °C
≤ 47 °C (-5 °C)
≤ 10 °C (-5 °C)
T-heat max.
≥ 50 °C
≤ 50 °C (-10 °C)
≤ 10 °C (-5 °C)
T-Diff. max.
≥ 7 / 9 °C
1)
≤ 7 / 9 °C
1)
(-2 °C)
≤ 7 / 9 °C
1)
(-2 °C)
T-rectif.max.
≥ 55 °C
≤ 55 °C (-5 °C)
≤ 55 °C (-5 °C)
1)
Air/water cooled
() Where relevant, values in brackets should be seen as switching hysteresis.
C.12
Derating
C.12.1
Current derating
The devices and the associated system components are rated for an ambient temperature of
40 °C and installation altitudes of up to 1000 m above sea level.
The following tables specify the permissible output currents as a function of the installation
altitude and ambient temperature.
Note also the information in section "Voltage derating" (Page 209).