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User’s Manual IUPS-401-B1
User’s Manual IUPS-401-B1
4. Display
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“Mains mode“ LED:
The green LED is on when mains voltage is supplied.
The green LED flashes during battery charge.
“Back-up mode“ LED:
Combined with an acoustic alarm sound every 3 seconds the red LED
flashes as soon as the IUPS has taken over power supply in case of
mains power failure.
“Battery low“ LED:
The red LED flashes (quickly) when the battery is low.
“Failure“ LED:
This failure indication is engaged in case
of overload, overtemperature or an inter-
nal failure.
Overload:
In case of an overload the red LED turns permanently red combined with a permanent
alarm sound, and the UPS switches the load off. As soon as the overload is gone, the
output voltage is switched on again. The permanent sound stops after approximately.
30 seconds.
Overtemperature / Internal failure:
The red LED flashes combined with a warning sound continuously every 2 seconds.
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5. Interface and Software RUPS 2000OEM
The interface at the back of the IUPS-401-B1 can be connected to the serial inter-
face of the computer via a special cable (included into the delivery of the software
package). When the software (optional) is installed,
1. a warning message can be displayed at the computer monitor in case of
mains power failure
2. open files can be stored automatically
3. the UPS can be switched off after the computer was shut down.
The following status signals are available:
“Mains power failure“: Transistor line (optocoupler) between Pin 2 and Pin 4
(Common) becomes conductive
“Battery low“:
Transistor line (optocoupler) between Pin 5 and Pin 4
(Common) becomes conductive
“IUPS switch-off“:
Input for RS-232 high level (5-12V) for >1.5 msec switches the
IUPS off until mains voltage returns. Connection at Pin 6 and
Pin 7 (Common)
Note:
Maximal load of optocouplers: +35 V DC / 150 mA (not inductive)
Pins 4 and 7 can be connected to Ground, however, they must be wired with a more
negative potential as compared to Pins 2, 5 and 6.
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