FPS300.245-049-102
All parameters are specified at 24 V, 12.5 A, 230 Vac, 25 °C ambient and after a 5 minutes run-in time unless otherwise noted.
Apr. 2022 / Rev. 0.2 FPS300-EN
17 / 28
Channel LED Signaling Overview
Below is an overview of the output LED signaling.
Fig. 14-1: Location of outputs LEDs
OFF
Output is switched OFF by ON/OFF or PSU is not powered (s. Status LED).
Green: Default
Output
is switched on by ON/OFF.
Flashes green: Power budget tripped
(slow rate: 250 ms ON / 250 ms OFF)
Low priority outputs are tripped. Sum of output currents are above
PSU power
budget.
Flashes green: Buttons Locked
(fast rate: 125 ms ON / 125 ms OFF)
No action is carried out. Button lock feature activated. Unlock buttons
by following Operation Settings > Set Button Lock. Other reason:
MOSFET protection MOSFET is >90 °C or Interval between Charge
Up/ Turn On cycles <5 s.
Orange: Pre-Alarm!
Output is still running. Current is above pre-alarm level and close to overload.
Flashes orange: Overload!
(slow rate: 500 ms ON / 500 ms OFF)
Output is tripped. Output current is overloaded. Restart by pushing
the ON/OFF.
Flashes orange: Faulty Installation
(medium rate: 250 ms ON / 250 ms OFF)
Output is turned OFF automatically. Cable or connected hardware on
the outputs are not installed correctly. Switch OFF the output manually
by pushing the specific output ON/OFF button.
PSU with NEC Class II outputs: Difference between positive and
negative/Input-Output current of the output are >1 A for 6-6.5 s
PSU without NEC Class II outputs: Connector negative wire
overcurrent according to negative trip curve, or output was
contributing to negative overcurrent of another output (Ipos --- Ineg
> threshold), or High PE current (>12 A) was detected based on
overall output current sum.
Flashes orange: Short Circuit
(fast rate: 125 ms ON / 125 ms OFF)
Output is tripped. The Output's output current exceeded approx. 48A.
Short circuit reasons may be electrical short, loads beyond specification,
plugging-in a large capacitance during operation, etc. After pushing of
specific output ON/OFF button, e-fuse output tries to turn ON.
Flashes Orange/Green: Overtemperature!
(slow rate, 250 ms orange /
250 ms)
Output will automatically turned OFF when MOSFET overtemperature
(125 °C) is reached. When MOSFET temperature falls below 90 °C the
output will turn on automatically.
Red: Fatal MOSFET Malfunction!
PSU turns OFF. Power switch on specific output is damaged.
Replacement of PSU might be required.
Possible malfunction:
Positive current output in OFF state exceeds >2 A for more than >0.5
s
Flashes red: Hardware Specs Out of Range!
(slow rate, 500 ms ON /
500 ms OFF)
Affected output channel turns OFF. Measurement Circuit Hardware is
out of specified range. Replacement of PSU might be required.
Possible malfunction:
Deviations of internal output current sensors exceed acceptable
limits.
Temperature sensor measurement out of range (-40 °C or +150 °C)
for more than 5 s
