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DC2412-UPSD | DC2412-UPS-LDD | UPSIC-1205D | UPSIC-2403D
5 Commissioning
5.1 DC2412-UPS-LDD
To turn on the device, Ignition line must be connected to the input line. After a delay
of approx. 2 sec, the device starts up, the output supplies 12 V and the supercapacitors
are charged. After removing the Ignition signal, the DC/DC converter shuts off after
approximately 5 sec to minimize power consumption. *
5.2 DC2412-UPSD
When supply voltage is applied, the device starts up, the output supplies 12 V and the
supercaps are charged. *
5.3 UPSIC-1205D / UPSIC-2403D
After applying supply voltage (UPSIC-1205D V
> 11.5 V, UPSIC-2403D V
> 22.5 V) this is
in
in
forwarded to the output, reduced by a current-dependent voltage drop (V
= V
- 0.3 V
out
in
at maximum current).
The device charges the supercapacitors and monitors the voltage thresholds at the input
(UPS function). *
Attention when using UPSIC-1205D/UPSIC-2403D!
Consider the voltage drop of the supply line. The maximum charging current can lead to
high voltage drops if the cables are too long. If the voltage drop is too high, the threshold
value can be undershot and an unintentional power fail triggered. Make sure that the
voltage at the input sockets of the device does not fall below the 11.5 V or 22.5 V, even at
maximum load.
Attention when using all devices described here!
Even when removing the ignition signal or disconnecting the power supply, the device
continues to operate independently and provides voltage at the output until the super-
capacitors have been discharged. A short circuit directly at the output of the device can
lead to damage or destruction. Only from a certain impedance (L > 50 nH, R > 50 mΩ)
protection can be guaranteed. Even after disconnecting supply voltage, power is available
at the output.
* In case the option of pre-charging Supercaps is set (see page 39 DIP switch settings DIP 3), the
output voltage is not available until 90% charge of Supercaps.
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