6 Commissioning

Issue 10/06

6.4.20Diagnostic parameters

r0021

r0022

r0032

r0035

r0036

r0039

r0052

CO: Act. filtered frequency

Displays actual inverter output frequency (r0021) excluding slip compensation, resonance damping and frequency limitation.

Act. filtered rotor speed

Displays calculated rotor speed based on inverter output frequency [Hz] x 120 / number of poles.

r0022 [1/min] = r0021[Hz]

60

r0313

CO: Act. filtered power

Displays motor power (power output at the motor shaft).

 

 

Pmech = ω ⋅ M = 2 ⋅ π ⋅ f M

 

 

 

ω, M

1

 

r0022

 

 

r0032 [kW] =

2 π

[1/min] r0031[Nm]

 

 

Motor

 

 

1000

60

 

 

 

 

 

r0032 [hp] = 0.75 r0032 [kW]

CO: Motor temperature

Displays the measured motor temperature in °C.

CO: Frequency inverter utilization

Displays the frequency inverter utilization as a % referred to the overload. In so doing, the value is calculated using the I2t model.

The I2t actual value relative to the maximum possible I2t value provides the level of utilization.

CO: Energy consumpt. meter [kWh]

Displays electrical energy used by inverter since display was last reset.

t ist

t ist

r0039 = ∫ PW dt = ∫ 3 u i cos ϕ ⋅ dt

00

CO/BO: Act. status word 1

Displays the first active status word (ZSW) of the frequency inverter (bit format) and can be used to diagnose the inverter status.

Bit00

Drive ready

0

NO

1

YES

Bit01

Drive ready to run

0

NO

1

YES

Bit02

Drive running

0

NO

1

YES

Bit03

Drive fault active

0

NO

1

YES

Bit04

OFF2 active

0

YES

1

NO

Bit05

OFF3 active

0

YES

1

NO

Bit06

ON inhibit active

0

NO

1

YES

Bit07

Drive warning active

0

NO

1

YES

Bit08

Deviation setpoint / act. value

0

YES

1

NO

Bit09

PZD control

0

NO

1

YES

Bit10

Maximum frequency reached

0

NO

1

YES

Bit11

Warning: Motor current limit

0

YES

1

NO

Bit12

Motor holding brake active

0

NO

1

YES

Bit13

Motor overload

0

YES

1

NO

Bit14

Motor runs right

0

NO

1

YES

Bit15

Inverter overload

0

YES

1

NO

72

MICROMASTER 440

Operating Instructions (Compact)

Page 72
Image 72
Siemens 440 operating instructions Diagnostic parameters