00198146-01_AI_120V_TX12_de_en - 第64页

4 Appendix 4.1 Excerpts from the Service Manual Assembly Instructions / Montageanleitung SIPLACE TX Series Option 120 V 04/2017 64 Fig.28: LED on the capacitor battery(CAP) ► Check the LED on the capacitor battery (CAP…

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Assembly Instructions / Montageanleitung SIPLACE TX Series
Option 120 V 04/2017
4 Appendix
4.1 Excerpts from the Service Manual
63
Monitoring the Voltage Absence After Switch-Off
The voltage at the measurement points X303 (IN PS1/PS2) and X304 (OUT CAP) only discharges
slowly.
After switch-off, the voltage drops from 300VDC to under 5VDC in approx. five minutes.
Fig.26: Measuring voltage
As soon as the voltage has undershot a value of 220VDC, the LED display on the power pack
changes!
Fig.27: Measuring voltage
DANGER
Measurement values below 5VDC
Measure between the following points:
► X303 (IN) – X305 (GND) < 5VDC
► X304 (OUT) – X305 (GND) < 5VDC
4 Appendix
4.1 Excerpts from the Service Manual
Assembly Instructions / Montageanleitung SIPLACE TX Series
Option 120 V 04/2017
64
Fig.28: LED on the capacitor battery(CAP)
► Check the LED on the capacitor battery
(CAP).
 DANGER!
Once the LED on the capacitor battery
(CAP) does not light any longer, it is pos-
sible to work on the power supply without
hazard!
.