FAQ SHP


1. The power supply doesn’t turn on

● Verify the input power supply is present and above all is correct.
● If any automatic switches are present, be sure to set the CLOSE position
● If the problem persiste, there may be an internal fault → send the power supply to Advel for a check.
NOTE: DO NOT oper the rack to check fo open fuses !!!


2. RMT in alarm after the load is introduced

If a too elevated load is introduced, the power supply goes in “protection state”, lowering its nominal output voltaget, and accordingly RMT goes in alarm state. So, be sure to use a load suitable to the capacity of the power supply. Verify that the inrush current of the load is not excessive.

3. Giving power to the rack without load and then giving a load, all is ok. But powering on the power supply with the load already connected, the power supply turns on and off repeatedly

It’s a typical problem of undersized power source: be sure to use a suitable power supply (20% more at least than the nominal power of the power supply).


4. RMCB gives alarm even if the batteries are connected

● Be sure the batteries are indeed connected to the battery charger.
● Through a tester, read the voltage to the heads of the battery and be sure the recharge-voltage is opportune: a battery has to be loaded with voltage between +10% and +20% of the nominal voltage of the battery. A 24V battery, for example, must be loaded by a voltage between 26.4V and 28.8V (Advel recommends 27.6V). If the recharge-voltage is less than 26.4V, the battery can’t be reloaded and the RMCB gives adlarm. If the recharge voltage is below 26.4V, set the battery charger to a higher voltage, or connect the battery to the battery charger using greater tickness or shorter cables (to avoid a voltage lost).
● It’s not to exclude that the battery is damaged: use a new battery. If the problem also persists with the new battery, contact the Advel support.


5. FCD led is on (red)

ach of the internal fans is supervised by the FCD device (Fan Control Device).
● FCD Led is on red → the relative fan works at less than 70% of the rated fan speed, try cleaning the fan with compressed air to remove any dust. If the problem persists, the fan must be replaced.
● FCD Led is red blinking → the relative fan works at less than 30% of the rated speed, or is stopped. The fan is to be replaced, unless there is an obstacle that stops the fan.


6. FCD led is on (power supply 750W or 1000W)

● The CS connection (Current Sharing) must be wired between 2 or more power supplies in parallel each other, to ensure an equally sharing of the load current (increasing the reliability of the system.
● The CS connection MUST NOT be wired between power supplies with outputs in series: in this last case, infact, the power supplies would fail instantly!