Vacon 100 hvac Applications Manual page 81

PARAMETERS MENU
Table 22: Protections settings
Index Parameter
P3.9.8
Motor thermal zero
speed cooling
P3.9.9
Motor Thermal Time
Constant
P3.9.10
Motor Thermal Load-
ability
P3.9.11 Motor Stall Fault
P3.9.12
Stall Current
P3.9.13
Stall Time Limit
P3.9.14 Stall Frequency Limit
Underload Fault
P3.9.15 (broken belt/dry
pump)
P3.9.16
Underload Protec-
tion: Field Weaken-
ing Area Load
24-HOUR SUPPORT +358 (0)201 212 575 · EMAIL: VACON@VACON.COM
Min Max Unit
5.0 150.0 %
1 200 min
0 150 %
0 3
0.00 2*IH A
1.00 120.00 s
1.00 P3.3.2 Hz
0 3
10.0 150.0 %
Default ID Description
Gives the cooling factor
at zero speed in rela-
tion to the point where
60.0 706
the motor operates at
nominal speed without
an external cooling.
The time constant is
the time within which
Varies 707 the calculated thermal
stage has reached 63%
of its final value.
100 708
0 709 See P3.9.2.
For a stall state to
occur, the current
IH 710
must be above this
limit.
This is the maximum
time for a stall state.
15.00 711
For a stall state to
occur, the output fre-
quency must be below
25.00 712
this limit for a time set
in parameter P3.9.13
Stall Time Limit.
See P3.9.2.
0 713
Gives the value for the
minimum torque thats
is possible when the
50.0 714
output frequency is
bigger than the field
weakening point.
VACON · 81
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