Nominal electrical values
Electrical parameters | |||
|---|---|---|---|
Supply voltage | Nom. | DC 48V | -20%/+25% |
Supply voltage range1) | Nom. | 38.4 - 60 Vdc |
|
Normal operating voltage range2) | Typ. | 46 – 60 Vdc |
|
Transition voltage for switching to buffer mode | Typ. | 45 Vdc | Backup threshold value jumper set to "45 V fixed" |
Typ. | VIN – 2 V | Backup threshold value jumper set to "VIN – 2 V" | |
Transition voltage for switching from buffer mode to supply mode | Typ. | 45 Vdc | Backup threshold value jumper set to "45 V fixed" |
Typ. | VBUFFER + 2 V | Backup threshold value jumper set to "VIN – 2 V" | |
Buffer voltage | Typ. | Equal to the transition voltage for switching to buffer mode. | |
Residual ripple and noise voltage - in buffer mode | Max. | 250mVpp | At 5 A, generated by the buffer module |
400mVpp | At 10 A, generated by the buffer module | ||
600mVpp | At 20 A, generated by the buffer module | ||
(defined at 20 Hz to 20 MHz, 50 Ohm) | |||
- in power supply mode |
| The residual ripple and noise voltage are defined by the power supply. | |
Current consumption | Typ. | 40 mA | When the capacitor is fully charged |
Min. | 300 mA | During the charging of the capacitors | |
Max. | 500 mA | During the charging of the capacitors | |
Power loss | Typ. | 1.9W | When the capacitor is fully charged |
Buffer current | Min. | 20A |
|
Buffer current overload behavior |
| Electronically limited, buffering stops and capacitor is discharged under 34 V. | |
Permissible voltage between supply voltage and housing ground | Max. | 60 Vdc or 42.4 Vac | Continuous operation, IEC 62477-1 |
Capacitive and inductive loads |
| no limit | |
1) Supply voltage range: At voltages within the input voltage range, the control functions such as LEDs, monitoring functions, relay contacts, etc. function as normal. Within the input voltage range the device can either be in power supply mode or buffer mode. 2) Normal operating voltage range: The normal operating voltage range describes the supply voltage that supports the full functionality of the buffer module (including charging) without entering buffer mode. |
