Vertiv Liebert DCD, Руководство пользователя

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WARNING! Risk of electric shock. Can cause serious injury or death. Building and equipment damage may also
result. Open all local and remote electric power supply disconnect switches and verify that power is off with a
voltmeter before working within any electric connection enclosures. The Liebert® controller does not isolate
power from the unit, even in the "Unit Off" mode. Some internal components require and receive power even
during the "unit off" mode of the Liebert® controller.
Installation, service, and maintenance work must be performed only by properly trained and qualified
personnel and in accordance with applicable regulations and manufacturers’ specifications. Opening or
removing the covers to any equipment may expose personnel to lethal voltages within the unit even when it
is apparently not operating and the input wiring is disconnected from the electrical source.
NOTE: The PE contacts of the Supply A and B connections must be connected to the electrical system's PE
(protective earth).
NOTICE
Before switching on the supply voltage, the prescribed tests must be carried out in accordance with the local
safety regulations.
After the fan module has been installed and all connections have been made, the supply voltage can be switched on. The unit
starts up immediately and after a short time starts to regulate itself. The green operation LED (standard) lights up or the TFT
display (optional) starts with the splash screen and shortly afterwards jumps to the main screen.
6.2 Optional Connection of the General Alarm
NOTE: This work may only be carried out by qualified personnel with sufficient expertise, knowledge of the hazards
and appropriate protective equipment.
The work described here means a change to the unit. The installer must ensure that the extension does not
compromise the safety of the unit. All technical specifications and instructions must be followed.
A potential-free normally closed contact is provided on the central controller of the Vertiv™ Liebert® DCD35/50. This is used
for error messages to higher-level systems. It opens if there is an error (analogous to the red LED) and is closed if there is no
error (analogous to the green LED). In the de-energised state, the contact is open.
Parameters Description
Max. voltage / current 30 VDC / 0.5 A (external fuse).
Terminal properties
0.5 mm
2
- 1.0 mm
2
, rigid or flexible with ferrule.
Table 6.1 Technical Characteristics of the Signaling Contact
Parameters Description
Type
Single core or sheathed cable, 0.5 mm
2
- 1.0 mm
2
.
Approvals Depending on the location: H05V-K / IEC60228 / VDE0295 / UL758 / CSA C22.2.
Wire Gage Size 20 awg to 17 awg.
Table 6.2 Cable Characteristics (Not included in Scope of Delivery)
The signalling cable must be connected to terminals X4.NO1 and X4.C12 on the central controller (see Figure 6.11 on the
facing page ).
The cables must be laid as shown in Figure 6.12 on page 34 . They must be fixed to the housing with cable ties so that they
cannot reach the fans or areas with parts carrying mains voltage.
6 Installation and Commissioning
32
Vertiv™ Liebert® DCDactive Fan Module User Manual