Lenze EVS9332xP Manual do Utilizador descarregar pdf (Página 260)

100

101

Configuration

Monitoring

Heatsink temperature

8.2

8.2.9



8.2−10

EDSVS9332P EN 5.0−07/2013

Calculate the release time and the I

x t load of the motor considering the

values in C0129/1 and C0129/2(evaluation coefficient "y").

Formulae for release time Information

y +

100% * C0129ń1

C0129ń2

) C0129ń1

T +*(t) ln

1 *

z ) 1

Mot

y I

 100

T Release time of the I

x t monitoring

t Thermal motor time constant (C0128)

In Function: Natural logarithm

Mot

Actual motor current (C0054)

Rated motor current (C0088)

z Threshold value in C0120 (OC6) or

C0127 (OC8)

y Evaluation coefficient

rated

Rated speed (C0087)

Formulae for I

x t load Information

L(t) +

Mot

y I

100%

1 * e

L(t) Chronological sequence of the I

x t

load of the motor

(Display: C0066)

y Evaluation coefficient

Mot

Actual motor current (C0054)

Ir Rated motor current (C0088)

t Thermal motor time constant (C0128)

If the controller is inhibited, the I

x t load is reduced:

L(t) + L

Start

 e

*



Start

x t load before controller inhibit

If an error is triggered, the value

corresponds to the threshold value set

in C0120 (OC6) or

C0127 (OC8).

8.2.9 Heatsink temperature

Via a temperature threshold, the heatsink temperature of the controller can

be monitored:

ƒ Adjustable threshold (OH4) under C0122

– The reset point is 5° C below the adjusted threshold.

ƒ Fixed threshold (OH) = 85° C

– The reset point is at 80° C.

The response for exceeding the adjustable threshold can be set under C0582.

Calculate release time and

xt load

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