Threshold Values For Fan Control System; Derating; Current Derating - Siemens SINAMICS G180 Installation And Operating Instructions Manual

Technical data
C.11 Threshold values for fan control system
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
Fan
Clock enable
Parameter P-INVERTER DATA.fan
Reactor prewarning
T-CPU
T cabinet max.
T-heat max.
T-Diff. max.
T-rectif.max.
Air/water cooled
1)
() 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).
206
Threshold values for fan control system
fast
--
= fast
Yes
≥ 70 °C
≥ 47 °C
≥ 50 °C
≥ 7 / 9 °C
≥ 55 °C
slow
Yes
= slow
No
≤ 70 °C (-5 °C)
≤ 47 °C (-5 °C)
≤ 50 °C (-10 °C)
≤ 7 / 9 °C (-2 °C)
1) 1)
≤ 55 °C (-5 °C)
Installation and Operating Instructions SINAMICS G180
Operating Instructions, 02/2019, 4BS0751-007
off
No
= T-contrl.
No
≤ 50 °C (-5 °C)
≤ 10 °C (-5 °C)
≤ 10 °C (-5 °C)
≤ 7 / 9 °C (-2 °C)
1)
≤ 55 °C (-5 °C)