ABB ACS350 Series, Руководство пользователя

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Actual signals and parameters
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DI5 See selection DI1. 5
DI1(INV) External fault indication through inverted digital input DI1. 0: Fault trip (EXT
FAULT 1). Motor coasts to stop. 1: No external fault. -1
DI2(INV) See selection DI1(INV). -2
DI3(INV) See selection DI1(INV). -3
DI4(INV) See selection DI1(INV). -4
DI5(INV) See selection DI1(INV). -5
3004 EXTERNAL FAULT 2 Selects an interface for an external fault 2 signal. NOT SEL
See parameter 3003 EXTERNAL FAULT 1.
3005 MOT THERM PROT Selects how the drive reacts when the motor overtemperature is detected. FAULT
NOT SEL Protection is inactive. 0
FAULT The drive trips on fault MOT OVERTEMP when the temperature exceeds
110°C, and the motor coasts to a stop. 1
ALARM The drive generates alarm MOTOR TEMP when the motor temperature
exceeds 90°C. 2
3006 MOT THERM TIME Defines the thermal time constant for the motor thermal model, i.e. the time
within the motor temperature has reached 63% of the nominal temperature
with steady load.
For thermal protection according to UL requirements for NEMA class motors,
use the rule of thumb: Motor thermal time = 35 · t6. t6 (in seconds) is
specified by the motor manufacturer as the time the motor can safely operate
at six times its rated current.
Thermal time for a Class 10 trip curve is 350 s, for a Class 20 trip curve 700
s, and for a Class 30 trip curve 1050 s. 500
256…9999 s Time constant 1 = 1 s
Parameters – complete descriptions
Index Name/Selection Description Def, FbEq
Temp. rise
100%
63%
t
t
}
Par. 3006
Motor load