Owner manual

Chapter 1 Installation

1.6.2 Cable Connection

警告

危险

Note

The operations described in this section must be performed by authorized electricians or qualified

technical personnel. If you have any difficulties, do not hesitate to contact our Customer Service &

Support department .

After the equipment has been finally positioned and secured, connect the power cables as

described in the following procedures:

1. Verify that all the external input distribution switches of the UPS are completely opened and the

UPS internal maintenance bypass switch is opened. Attach necessary warning signs to these

switches to prevent unauthorized operation.

2. Open the back door of the cabinet, remove the cover and then the input and output terminal,

battery terminal and earth terminal are visible.

3. Connect the input earth wire to input earth terminal. Please note: the earth wire shall be connected

in accordance with related local or state regulation

4. For common bypass and rectifier inputs, connect the AC input supply cables to the UPS input

terminals (Main input A-B-C-N), and connect the output loaded cable to the UPS output terminals

(Output A-B-C-N) and tighten the connections to 13 Nm (M8 Bolt). ENSURE CORRECT PHASE

ROTATION.

5. Connect the battery cables between the UPS battery terminals and battery switch. ENSURE

CORRECT PHASE ROTATION.

警告

危险

Warning-Hazardous battery terminal voltage of 400Vdc

Ensure the correct polarity connection between the battery terminals and the UPS terminals: Positive

terminal to positive terminal, negative terminal to negative terminal, and disconnect one or more than

one cable between every two layers of batteries. Do not connect the cables and close the battery

circuit breakers before getting the approval from the commissioning engineer.

6. Re-install all the protective covers.

1.7 Control and Communication Cabling

As shown in fig 1-12, the front panel of the bypass module will provide dry contact interface

(J2~J10), communication interface (RS232, 485 and SNMP card interface), as well as LBS interface.

干接点接口

SNMP卡接口

RS485接口

RS232接口

LBS接口

Fig 1-12 Dry contact interface and communication interface

Dry contact

interface

SNMP card port

LBS port

RS232 port

RS485 port