background image

1-2 

 

Ground the power supply reliably to ensure safety and reduce interference. 

 

To avoid electric shock, do not remove the power supply housing. If the power supply is faulty, 
do not repair it yourself. Contact the technical support. 

 

Make sure the operating voltage is correct and stable and does not exceed the nominal 
specifications to ensure the availability of the power supply. 

 

Do not switch on or off the power supply frequently. Doing so might shorten the lifetime of the 
power supply. 

Summary of Contents for DG-240-55

Page 1: ...H3C DG 240 55 Industrial Power Supply Installation Quick Start New H3C Technologies Co Ltd http www h3c com Document version 5W100 20191025...

Page 2: ...espective owners Notice The information in this document is subject to change without notice All contents in this document including statements information and recommendations are believed to be accur...

Page 3: ...s arguments that you replace with actual values Square brackets enclose syntax choices keywords or arguments that are optional x y Braces enclose a set of required syntax choices separated by vertical...

Page 4: ...s Convention Description Represents a generic network device such as a router switch or firewall Represents a routing capable device such as a router or Layer 3 switch Represents a generic switch such...

Page 5: ...ardware model configuration or software version It is normal that the port numbers sample output screenshots and other information in the examples differ from what you have on your device Documentatio...

Page 6: ...ing the power supply on a DIN rail 2 1 Removing the power supply from a DIN rail 2 1 3 Connecting power cords 3 1 Connecting an AC input power cord 3 1 Connecting a DC output power cord 3 2 4 Appendix...

Page 7: ...d has a maximum diameter of 2 8 mm 0 11 in As a best practice strip a maximum of 7 mm 0 28 in of insulation from the power cord for connection IMPORTANT To connect the power supply to a device make su...

Page 8: ...If the power supply is faulty do not repair it yourself Contact the technical support Make sure the operating voltage is correct and stable and does not exceed the nominal specifications to ensure the...

Page 9: ...ower supply so that the hooks of the DIN rail mounting bracket hooks onto the upper edge of the DIN rail 2 Pull down and hold the spring loaded latch of the DIN rail mounting bracket 3 Rotate the rout...

Page 10: ...2 2 Figure2 2 Removing the power supply from a DIN rail...

Page 11: ...onnecting an AC input power cord WARNING High voltage is present on the AC input power wires Make sure the AC power is cut off before connecting the AC input power wires Make sure no exposed part of a...

Page 12: ...ly with the positive wire red in Figure3 1 to a positive terminal V and negative wire black wire in Figure3 1 to a negative terminal V Two positive terminals V are provided for the positive output and...

Page 13: ...contact When the output voltage decreases to 35 5 VDC the relay opens the contact 2 OK relay pin 2 3 V DC output positive connection 4 V DC output negative connection 5 V ADJ Voltage output adjuster T...

Page 14: ...t practice Technical specifications Table4 1 Technical specifications Item Specification Dimensions H W D 124 45 119 mm 4 88 1 77 4 69 in Weight 760 g 26 81 oz Rated input voltage range 100 to 240 VAC...

Page 15: ...ers after the issues are resolved The LED is steady green Overvoltage protection Provides power at a constant voltage level 58 to 63 VDC The LED is steady green Automatically recovers after the issues...

Page 16: ...iption Steady green The output voltage increases to 37 5 5 VDC Steady red The power supply has entered undervoltage protection mode The power supply has entered overcurrent protection mode The power s...

Reviews: