MICRO-EPSILON thicknessCONTROL RTP 8301.EO Betriebsanleitung Seite 273

U–Series
28.3. U I
SING THE NHIBIT
The inhibit input disables buffering. In normal mode, a static signal is required. In buffer mode, a pulse with a
minimum length of 250ms is required to stop buffering. The inhibit is stored and can be reset by cycling the input
voltage.
For service purposes, the inhibit input can also be used to connect a service switch. Therefore, the inhibit signal can
be supplied from the output of the DC-UPS.
28.4. T
ROUBLESHOOTING
The LEDs on the front of the unit and relay contacts indicate the status of the DC-UPS. Please see also chapter 14.
The following guidelines provide instructions for fixing the most common failures and problems. Always start with
the most likely and easiest-to-check condition. Some of the suggestions may require special safety precautions. See
notes in section 25 first.
"Check wiring" LED is on
DC-UPS did not buffer
DC-UPS stopped buffering
Output has shut down
DC-UPS constantly switches between normal mode and buffer mode
May. 2008 / Rev. 1.1 DS-UBC10.241-EN
All parameters are specified at an input voltage of 24V, 10A output load, 25°C ambient and after a 5 minutes run-in time
unless otherwise noted. It is assumed that the input power source can deliver a sufficient output current.
I
NPUT
Fig. 28-3 Wiring example for inhibit input
- - - -
+ + + +
Output IN OUT
24V 24V
DC-UPS
Power
Supply
UBC10.241
-
+
Input Signal Port
N L PE
Check correct wiring between the battery and the DC-UPS
Check battery fuse. Is the battery fuse inserted or blown?
Check battery voltage (must be typically between 7.4V and 15.1V)
Check input voltage (must be typically between 22.8V and 30V)
Check battery polarity
Inhibit input was set
Battery did not have enough time to be charged and is still below the deep discharge
protection limit.
Buffer time limiter stopped buffering
Deep discharge protection stopped buffering
the battery
Output was overloaded or short circuit
Cycle the input power to reset the DC-UPS
Let DC-UPS cool down, over temperature protection might have triggered.
The supplying source on the input is too small and can not deliver sufficient current
Use a larger power supply or reduce the output load
The input voltage is same as transfer threshold.
www.pulspower.com Phone +49 89 9278 0
UBC10.241, UBC10.241-N1
Buffered
Load
Service
Switch
set buffer time limiter to a higher value
allow sufficient time for charging
reduce load
Increase input voltage
Germany
24V, 10A, DC-UPS
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