User Manual DEV 5072
Copyright DEV Systemtechnik GmbH 2016-2017
15
4.3
Device Factory Settings
The DEV 5072 is delivered with factory settings as described in the following.
It is possible to restore these settings, please refer to chapter 4.2.4.
4.3.1
Factory Settings for the DEV 5072 Chassis
The factory settings for the DEV 5072 are dependent on the configured power
supply module type:
1. DEV 5072 configured for 12 V Power Supply Modules
Voltage Setpoint / Current Alarm Level:
12.0 V / 684.0 A
2. DEV 5072 configured for 24 V Power Supply Modules
Voltage Setpoint / Current Alarm Level:
24.0 V / 355.6 A
3. DEV 5072 configured for 48 V Power Supply Modules
Voltage Setpoint / Current Alarm Level:
48.0 V / 177.8 A
In combination with the DEV 5101, the output voltage it is determined by the
battery voltage and cannot be adjusted!
Otherwise, the output voltage setpoint for the DEV 5072 chassis can be adjusted in
a range as described in chapter 3.1.2 via Web Interface (please refer to chapter
5.4.4) and via SNMP (chapter 5.5.4.3.6).
The current alarm level for the DEV 5072 chassis can be changed via Web Interface
(chapter 5.4.4) and via SNMP (chapter 5.5.4.3.7). If the total current of the chassis
exceeds the current alarm level, this is just used for warning notice purposes and
does not physically limit the output current.
The other limitations for the power supply modules which need to be considered
depend on the AC input voltage: As shown in in chapter 3.1.2 a power supply
module delivers up to 1500 W power if supplied with 100…170 V AC and is capable
to deliver more power if the AC input voltage is larger than 170 V AC (but smaller
than 265 V AC).
Note –if not in combination with the DEV 5101– that it is possible to alter the
relation of the output voltage setpoint and of the current alarm level to values that
may exceed the capabilities of the DEV 5072 chassis and of the power supply
modules. Since the firmware does not restrict the input set values according to the
present operating environments, please consider the conditions regarding AC input
voltage, DC output voltage, and the number of installed power supplies. The table
below may assist for altering the factory settings for the current alarm level of the
device (via Web Interface and/or via SNMP).
Note:
For input voltages >170 V AC and if the output voltage is adjusted to values
below the nominal voltage of the applied power supply modules, the maximum
feasible current of the power supply modules (as stated in chapter 3.1.2)
becomes the limiting factor; i.e. the resulting output power is lower as for
higher output voltages. E.g. if a chassis equipped with a single 12 V power
supply module and if the output voltage is adjusted to the lower limit, this
results in 9.6 V * 200 A = 1920 W for the applied power supply module instead
of the 2400 W power for output voltages ≥ 12 V.
After the exchange of a power supply module, the replacement power supply
module inherits the settings of the corresponding slot.
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