Chapter 1: Important Safety Instructions; Installation Warnings; Connection Warnings - Delta Modulon DPH Series User Manual

Chapter 1: Important Safety Instructions

1.1

Installation Warnings

• This is a three-phase four-wire on-line uninterruptible power supply (hereafter
referred to as 'UPS'). It can be used for commercial and industrial applications.
• Install the UPS in a well-ventilated indoor area, away from excess moisture, heat,
dust, flammable gas or explosives. To avoid fire accidents and electric shock, the
indoor area must be free of conductive contaminants. For the temperature and
humidity specifications, please refer to
• Leave adequate space around all sides of the UPS for proper ventilation and
maintenance. Please refer to
• Only authorized Delta engineers or service personnel can perform installation and
maintenance. If you want to install the UPS by yourself, please install it under the
supervision of authorized Delta engineers or service personnel.
• Follow the IEC 60364-4-42 standard to install the UPS.
1.2

Connection Warnings

• Before applying electrical power to the UPS, make sure that the UPS is grounded
to avoid a possible risk of current leakage.
• You can parallel up to eight UPS units.
• The UPS must be connected with an external battery cabinet (user-supplied,
handled and configured by Delta service personnel). Please refer to
Battery Cabinet Connection Warnings
• It is necessary to connect the protective devices with the UPS when the UPS is
connected to power sources and critical loads.
• The protective devices connected to the UPS must be installed near the UPS and
easily accessible for operation.
• Protective Devices:
1. For single input, you must install (1) a protective device between the main AC
source and the UPS and (2) a protective device between the connected critical
loads and the UPS.
2. For dual input, you must install (1) a protective device between the main AC
source and the UPS, (2) a protective device between the bypass source and
the UPS and (3) a protective device between the connected critical loads and
the UPS.
3. For grounding information, please refer to
Appendix 1: Technical Specifications
5.2 Installation Environment
for relevant information.
Figure 2-5
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5.6 External
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