Micom P631 - Page 419

Parameter Address
Default Min Max Unit Logic Diagram
Thermal overload
protection
THRM1: Enable PSx
081 070 082 070 083 070 084 070
0: No Fig. 3-110, (p. 3-145)
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This setting defines the parameter subset in which thermal overload protection
is enabled.
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THRM1: Iref PSx
081 074 082 074 083 074 084 074
1.00 0.10 4.00 Inom Fig. 3-114, (p. 3-149)
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Setting for the reference current.
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THRM1: Start.fact.OL_RC PSx
081 075 082 075 083 075 084 075
1.15 1.05 1.50 Fig. 3-114, (p. 3-149)
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Starting factor k must be set in accordance with the maximum permissible
continuous thermal current of the protected object:
k=I
therm,prot.object
/I
nom,prot.object
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THRM1: Tim.const.1,>Ibl PSx
081 082 082 082 083 082 084 082
30.0 1.0 1000.0 min Fig. 3-114, (p. 3-149)
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Setting for the thermal time constants of the protected object with current flow
(Ibl: base line current).
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THRM1: Tim.const.2,<Ibl PSx
081 083 082 083 083 083 084 083
30.0 1.0 1000.0 min Fig. 3-114, (p. 3-149)
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Setting for the thermal time constants of the protected object without current
flow (Ibl: base line current).
Note: This setting option is only relevant when machines are running. In all
other cases, time constant 2 must be set equal to time constant 1.
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THRM1: Max.perm.obj.tmp.PSx
081 077 082 077 083 077 084 077
120 0 300 °C Fig. 3-114, (p. 3-149)
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Setting for the maximum permissible temperature of the protected object.
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THRM1: Max.perm.cool.tmpPSx
081 080 082 080 083 080 084 080
40 0 70 °C Fig. 3-114, (p. 3-149)
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Setting for the maximum permissible coolant temperature.
Note: This setting is active only if the coolant temperature is measured via the
PT 100 or the 20 mA input.
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THRM1: Select CTA PSx
081 072 082 072 083 072 084 072
0: Default temp. value Fig. 3-113, (p. 3-148)
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Select the mode of the coolant temperature acquisition. Select from:
●
No data acquisition. A default temperature value is used instead,
●
data acquisition via the PT 100 input,
●
data acquisition via the 20 mA input.
7 Settings
P631
P631/EN M/R-11-C // P631-310-650 7-119