Commissioning and Diagnostics
3-6
EM 148-FC
Frequency Converter
A5E00065321-03
3.5
Status indication by means of LEDs
The Frequency Converter frequency converter has three LEDs for indicating
statuses and fault statuses.
!
Warning
The LEDs are electronically controlled. If there is no voltage supplied to the
electronic components and sensors, the LEDs do not light up. However, the power
unit might still be receiving power.
Table 3-2
Meaning of the LEDs
Labeling
Color
Description
SF
Red
Group error of the Frequency Converter
STAT
Yellow
Status of the motor circuit
PWR
Green
Status of the power supply (intermediate circuit)
This LED continues to be illuminated after the power
supply has been switched off until the capacitors of the
intermediate circuit have been discharged to under 400 V.
This means the following status indications to the DESINA specification are
possible:
Table 3-3
Status indication by means of LEDs
”SF”
LED
“STAT”
LED
“PWR”
LED
Description
Off
Off
On
Power supply (power unit) present, motor off
Off
On
On
Power supply (power unit) present, motor on (irrespective
of direction)
On
Off
On
Load voltage not present or Frequency Converter fault,
motor off
On
Off
Off
Power supply (power unit) not present, motor off
Off
Off
Off
Supply voltage to the electronic components and sensors
is missing (see warning)
Содержание SIMATIC EM 148-FC
Страница 56: ...Functions and Technical Specifications 4 22 EM 148 FC Frequency Converter A5E00065321 03 ...
Страница 66: ...Mode of Functioning 5 10 EM 148 FC Frequency Converter A5E00065321 03 ...
Страница 70: ...Dimensioned Drawing B 2 EM 148 FC Frequency Converter A5E00065321 03 ...
Страница 76: ...4 Product Information on Manual EM 148 FC Frequency Converter Edition 04 2003 A5E00476687 03 ...