For locations, phone, fax, E-Mail see back cover
9
Industrial
Grade
MGDI-10 Standard Input Series
Gaia Converter FC97-006.03/06 Revision M
©
5
11- Description of Protections
11-1 Input Undervoltage Lock-out (UVLO)
The input undervoltage lock-out protection device turns-
on and turns-off the output voltage when the input bus
voltage reaches the undervoltage lock-out threshold. There
is no hysteresis cycle at turn-on and turn-off.
11-2 Output Short Circuit Protection (SCP)
The short circuit protection device protects the module
against short circuit of any duration and restores the mo-
dule to normal operation when the short circuit is removed.
It operates in «hiccup» mode by testing periodically if an
overload is applied (typically every 200ms recovery time).
The overload detection threshold is typically 200% of maxi-
mum current with a detection time lower than 5ms.
11-3 Output Overvoltage Protection (OVP)
The output overvoltage protection device protects external
components against high voltage or possible overvoltages
which can be supplied by the module (i.e in case of internal
failure). It consists of a zener diode clamping the output
voltage; under worst case conditions this zener diode will
short-circuit.
The output voltage protection is not designed to withstand
externally applied output overvoltages to protect the mo-
dule itself.
Vin
On
Off
UVLO
Turn-on/Turn-off
time
recovery time
detection time
recovery time
x
100
Vo (%)
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