Power supply ICOS-PS 3160 series
Installation, use and maintenance manual - EN
Ver. 1.05
48
6.3 Anomalies during the charging phase
In some cases, the
charging phase may not be completed and the power supply unit enters the alarm
status, waiting for the RESET signal in order to be restored and start a new charging phase.
Here are the cases when the power supply unit may enter the alarm status during the charging phase:
• input supply voltage > 310VAC;
• output current > 1A;
• power supply missing phase;
• faulty charging circuit of the power supply unit.
A successful charging phase takes no more than 5s after the impulse on the RESET input; if it is not
successful due to one of the above mentioned causes, the PWG LED and the PWG digital output will remain
OFF.
In this case, the diagnosis of the problem causing the alarm must also take into consideration the information
coming from the servodrivers connected to the power supply unit, according to the following table:
Condition
PWG
LED
PHL
LED
OVL
LED
PWG
output
ALARM
output
Servo
drivers
Meaning
Input supply
voltage
>310VAC
Lamp
Off
Off
0
0
Voltage
>435VDC
within
5s
from
the
start
Excessive
supply
voltage.
NOTE: Disconnect
the power supply,
in order to reduce
the
risk
of
damaging
the
power supply unit.
Output
current
>1A
Lamp
Off
On
0
1
Load already active
or
faulty;
output
short-circuit.
NOTE: disable the
load, in order to
reduce the risk of
damaging
the
power supply unit.
Wait for the reset
signal.
