Siemens 6MD85, Manual

Page: 900 / 1256

Under the following conditions, the
Default temperature
will be set as ambient temperature:
•
A temperature sensor for measuring the ambient temperature is not connected.
•
The temperature measurement is interrupted and the measured temperature value is less than the
Default temperature
.
Siemens recommends using the default setting.
Parameter: Minimal temperature
•
Default setting
(_:117) Minimal temperature
=
-20°C
If the measured ambient temperature drops below the preset value, the set value will be assumed as the
ambient temperature. If the overload protection works with a prespecified outside temperature, and this
temperature drops below the value set in the
Minimal temperature
parameter, the
Minimal tempera-
ture
can also be used.
Settings
Addr. Parameter C Setting Options Default Setting
49 Th.overl. #
_:1 49 Th.overl. #:Mode
•
off
•
on
•
test
off
_:2 49 Th.overl. #:Operate &
flt.rec. blocked
•
no
•
yes
no
_:101 49 Th.overl. #:Threshold
current warning 1 A @ 100 Irated 0.030 A to 35.000 A 1.000 A
5 A @ 100 Irated 0.15 A to 175.00 A 5.00 A
1 A @ 50 Irated 0.030 A to 35.000 A 1.000 A
5 A @ 50 Irated 0.15 A to 175.00 A 5.00 A
1 A @ 1.6 Irated 0.001 A to 1.600 A 1.000 A
5 A @ 1.6 Irated 0.005 A to 8.000 A 5.000 A
_:104 49 Th.overl. #:Threshold
thermal warn. 50 % to 100 % 90 %
_:105 49 Th.overl. #:Dropout
threshold operate 50 % to 99 % 90 %
_:106 49 Th.overl. #:K-factor 0.10 to 4.00 1.10
_:110 49 Th.overl. #:Thermal
time constant 10 s to 60000 s 900 s
_:107 49 Th.overl. #:Imax
thermal 1 A @ 100 Irated 0.030 A to 10.000 A 2.500 A
5 A @ 100 Irated 0.15 A to 50.00 A 12.50 A
1 A @ 50 Irated 0.030 A to 10.000 A 2.500 A
5 A @ 50 Irated 0.15 A to 50.00 A 12.50 A
1 A @ 1.6 Irated 0.001 A to 1.600 A 2.500 A
5 A @ 1.6 Irated 0.005 A to 8.000 A 12.500 A
_:109 49 Th.overl. #:Tempera-
ture rise at Irated 40 K to 200 K 70 K
_:113 49 Th.overl. #:Storage of
thermal replica
•
no
•
yes
no
_:114 49 Th.overl. #:Behav. at
I> Imax therm.
•
current limiting
•
freeze therm. rep.
current limiting
_:118 49 Th.overl. #:Default
temperature -55°C to 55°C 40°C
7.27.5
Protection and Automation Functions
7.27 Thermal Overload Protection, 1-Phase
900 SIPROTEC 5, High-Voltage Bay Controller, Manual
C53000-G5040-C015-9, Edition 11.2017