Switch-mode power supply AC2000 N1 / DC2000 N1 / AC3000 N1 / DC3000 N1 - Operating instructions
80001533 EFE en Page 33 of 41
6.2. 7 Output monitoring
The front panel contains the setting potentiometers and LED indicators
for the following monitoring functions:
Supply status display (LED H1)
lights up when the input voltage is within the permissible range.
Operation indicator (LED H2)
lights up when power is supplied.
Deviation of the output voltage U
Out
Dev. (LED H4)
lights up when the output voltage deviates from the set value. Indicator
for operation in current limit.
Overtemperature monitoring Temp. > (LED H5)
Indicates critical appliance temperature. LED lights up when the
warning threshold is exceeded. If the appliance continues to heat up, it
switches off.
For behaviour, see type overview ( section 4.2)
DC overvoltage indicator U
Out
> (LED H6)
Behaviour see type overview ( section 4.2)
Setting with potentiometer U
Out
≥
DC undervoltage indicator U
Out
< (LED H7)
Behaviour see type overview ( section 4.2)
Setting with potentiometer U
Out
≤
Digital display (P1)
A double-row LC display is used to show the current values.
6.2.8 Reset button/functions
A fault message (response of an output monitor) can be acknowledged
with the "Reset button" (S8). The device will then restart if it was
switched off.
A fault message can also be acknowledged by switching off the mains
voltage or using the "External on/off" function.
6.2.9 LED test
All LEDs light up when button S18 is pressed.
6.3 Secondary functions
6.3.1 External on/off switching with an external potential-free contact
The device can be switched on and off externally via a potential-free
contact (contact load 24 V / 12 mA, contact open = "Device stop"). To
do this, remove the jumper on the signal connector X11:7 and X11:8
and loop in a relay contact (section 6.8).
Note: The front panel switch S3 (On/Off) is logically AND-linked, i.e. S3
and the external contact described here must be set to "ON" for the
device to start up.
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