Bosch PIN8 N1 Guia de Resolução de Problemas descarregar pdf (Página 230)

100

101

6-18 Drive Control MPH-02, MPB-02, MPD-02

DOK-INDRV*-MP*-02VRS**-FK01-EN-P

Note: The voltage loop is only active when bit 0 has been set (field

weakening operation active) in the current loop control word

(P-0-0045)

The command value of the voltage loop is defined by means of parameter

P-0-0536, Maximum motor voltage.

The input in P-0-0536 is made in percent and refers to the maximum

possible output voltage of the inverter that is determined by the active DC

bus voltage (cf. S-0-0380).

Note: A setting of 90% in parameter P-0-0536 is advisable.

In addition to the parameterization of the field loop, the following settings

can be made or changed, if required:

• The field weakening can be activated via P-0-0045, Control word of

current controller (bit 0).

• According to the motor cooling type, a different factor can be set in

parameter P-0-0530, Slip increase.

Diagnostic and Status Messages

• S-0-0158, Power threshold Px

This parameter determines the power threshold above which the drive

outputs the status message "power > = Px" in parameter S-0-0337,

Message ’P >= Px’.

• S-0-0337, Message ’P >= Px’

Only bit 0 of this parameter is used. It is set when:

S-0-0382, DC bus power >= S-0-0158, Power threshold Px

Simultaneously, bit 7 is set in S-0-0013, class 3 diagnostics.

• The DC bus voltage is measured in the current loop clock

(advanced: T = 62.5 µs; basic: T = 125 µs) and displayed in parameter

S-0-0380, DC bus voltage.

• The effective electric power produced by the controller (taking the

inverter losses into account) is displayed in parameter S-0-0382, DC

bus power.

Calculation according to formula below:

5.1)( ∗∗+∗=

qqddeff

IUIUP

The calculated value is displayed in filtered form (T = 8ms). When the

parameterized threshold value in S-0-0158, Power threshold Px is

exceeded, bit 0 is set in S-0-0337, Message ’P >= Px’ and bit 7 in

class 3 diagnostics.

• The measured value of the torque-generating current (I

) detected in

the current loop clock (advanced: T = 62.5 µs; basic: T = 125 µs) is

displayed in parameter P-0-0043, Torque-generating current, actual

value.

• The measured value of the field-generating current (I

) detected in the

current loop clock (advanced: T = 62.5 µs; basic: T = 125 µs) is

displayed in parameter P-0-0044, Flux-generating current, actual

value.

• Parameter P-0-0046, Status word of current controller displays the

status of the current loop.

Status Messages

Display Values and Diagnostic

Values

1 2 ... 225 226 227 228 229 230 231 232 233 234 235 ... 727 728

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