Lambda UF1500 Series, Руководство по установке

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OUTPUT VOLTAGE ADJUSTMENT (TRIMMING)
Voltage adjust potentiometers are provided for all outputs. The potentiometers are located
adjacent to the output connections of the power supply. Use a non-conductive trim-pot
adjustment tool. Turn clockwise to increase the voltage.
NOTE: Always monitor the corresponding output voltage while turning the potentiometer.
CURRENT LIMIT PROTECTION
All outputs are protected by constant-current limiting circuitry. The overcurrent limits are set at
the factory between 110-150% for single outputs. The overcurrent limit settings for the dual
output modules are as follows: Output #1: 110- 150% of rated load; Output #2: 110-150% of
rated load. Removing the overload automatically restores the output voltage. On Dual Output
Modules - if Output #1 is in current limit, Output #2 voltage will also decrease.
OVERVOLTAGE PROTECTION (OVP)
When any single output module voltage reaches 120-130% of nominal voltage, that channel
will shut down. When any dual output module reaches 120-140% of nominal voltage, both
outputs of the dual module will shut down. OVP on 2V outputs is factory set to 3-3.5V, and
OVP on 3.3V outputs is set to 4.3-4.8V. OVP activates the internal shutdown latch of the
module until the AC input power is recycled OFF to ON to clear the latch and resume normal
operation, once the OVP problem has been corrected.
OUTPUT LOAD REGULATION
(NO LOAD/FULL LOAD/NO LOAD)
Single output modules 0.4% maximum.
Dual output modules 0.8% maximum.
OUTPUT LINE REGULATION
(85-265VAC 47-63 Hertz)
Single output modules 0.1% maximum.
Dual output modules 0.2% maximum.
HOLD UP TIME AFTER POWER LOSS
(AC INPUT)
The UltraFlex output voltages will remain within specified regulation for a minimum of 16msec
after loss of applied power on the AC input at full load and nominal output voltage.
TURN-OFF/TURN-ON
Turn-off/turn-on output voltage - transient overshoot is less than 3% of nominal voltage during
the application or removal of input voltage under any condition of turn-on, turn-off, including
inhibit or enable.
TURN ON TIME
All outputs shall be within voltage regulation limits within 1 second of application of AC power.
NOISE AND RIPPLE
UltraFlex output modules meet the following specifications with a 20MHz bandwidth. Care
must be taken when conducting the following measurements:
Single output modules:
2-5V, <1000W: <50mV pk –pk.
</= 5V, 1000W: <200mV pk-pk directly on the output terminals;
<50mV pk-pk measured 5 inches away from the output
terminals with two – 2700 uf capacitors located at this point.
> 5V: <1% pk–pk.