A 1322 / A 1422
Operation
15
Status indicators
LED
indicator
Description
OK
Continuous
:
The A 1322 / A 1422 is ready for use.
Blinking
:
Hardware error.
1P
Single-phase supply system status
Continuous
:
A single-phase supply voltage is applied.
Blinking
:
Warning for improper power supply voltage condition:
Possible causes are:
-
L and N wire crossed,
-
No earth connection or other wiring problem on
supply socket,
-
Incorrect
mains
voltage.
Warning:
The A 1322 / A 1422 must be properly earthed!
See
4.2 Power
supply considerations.
3P
3-phase supply system status
Continuous
:
A 3-phase supply voltage is applied
Blinking
:
Warning for improper power supply voltage condition:
Possible causes are:
-
No earth connection or other wiring problem on
supply socket,
-
L and N wire crossed when instrument is
connected to 1-phase supply system,
-
Incorrect
mains
voltage.
Blinking
at
start-up
3-phase supply voltage is applied. Check phase
rotation.
Warning:
The A1322 / A 1422 must be properly earthed!
See
4.2 Power
supply considerations.
N
Power supply Neutral conductor status
Light on:
Power supply system with N conductor.
Light off:
No N conductor in the incoming power supply system.
