PULS
The DC-DC converter is optimized to connect on the frequency converter's dc bus/stage. This voltage is usually not filtered, has high EMI interference and leaves high leakage currents. The converter has a very robust input stage and filter, which provides safe operation even at very disturbing power supply. Duplicate 600V dc fuses are built-in, which saves space and money. At power outages, the motors act as generators and reset voltage to the frequency converter capacitors which, in turn, output voltage to the dc-dc converter. This means that 24V dc is maintained and a controlled stop can be performed.
The bonus effect gives 25% extra reserve with retained 24V which is an advantage when connected loads have high starting current.
The converter has polarity protection and minimal input current. In addition, there is a relay output (dc OK) that falls when the output voltage deviates more than 10% from the set value.
Input data |
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Input voltage dc | 600 V |
Input voltage dc min | 480 V DC |
Input voltage dc max | 840 V DC |
Inrush current | Typ. 1,6 A @ 600 V DC |
Max entrance tripple | 50 V pp |
Output data |
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Output voltage | 24 V DC |
Output voltage min | 24 V DC |
Output voltage max | 28 V DC |
Output current | 20 A |
Power | 480 W |
Efficiency / Lifetime / MTBF |
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Efficiency | 95 % |
Life span | 42000 h @ 24 V DC, 20 A, 40 °C |
MTBF (IEC 61709) | 446000 h @ 24 V DC, 20 A, 40 °C |
Dimensions |
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Width | 65 mm |
Height | 124 mm |
Depth | 127 mm |
Weight | 0,89 kg |
*Invisible Heading* |
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Other |
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Approvals | CE, CSA, UL |
Keep time | Typ. 22 ms @ 600 V DC |
IP class | IP20 |
Clamp type | Spring-clamp |
Material protection | Aluminium |
Ripple max | 100 mV pp |
Series | Dimension Q |
Power drop from +60 °C to + 70 °C | 12 W/°C |
Temperature min without derating | -25 °C |
Temperature max without derating | 60 °C |
Startup delay | 350 ms |
Type Power Supply | DC-DC |
DC relay output | Yes |
Active Transient | Yes |
The DC-DC converter is optimized to connect on the frequency converter's dc bus/stage. This voltage is usually not filtered, has high EMI interference and leaves high leakage currents. The converter has a very robust input stage and filter, which provides safe operation even at very disturbing power supply. Duplicate 600V dc fuses are built-in, which saves space and money. At power outages, the motors act as generators and reset voltage to the frequency converter capacitors which, in turn, output voltage to the dc-dc converter. This means that 24V dc is maintained and a controlled stop can be performed.
The bonus effect gives 25% extra reserve with retained 24V which is an advantage when connected loads have high starting current.
The converter has polarity protection and minimal input current. In addition, there is a relay output (dc OK) that falls when the output voltage deviates more than 10% from the set value.
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Parts | Price | ||
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PSU 600V dc I/P 24V dc 20A 480W O/P
Art:
QTD20.241
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