Enatel RW312U, Инструкция по установке и эксплуатации

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Enatel DC System Manual Page 14 of 26
Model: RWxxx Version: 3.6
more units are connected in parallel, then you can use a simple RJ45 double adaptor to
daisy chain the connection cable (max 6 rectifiers).
Any fuses or circuit breakers on the output of the rectifier must be placed after the
rectifier outputs have been connected together.
3.6 Internal Alarm Card (Optional)
The internal alarm card may be fitted to a rectifier. The alarm card provides voltage free
relay contacts in the event of:
• Mains failure
• Rectifier failure
• Rectifier Off Normal (over temperature, over voltage, current limit)
•
High voltage output
•
Low voltage output
When rectifiers are connected in parallel using an RJ45 cable to connect between the
alarm and control interface, the alarm outputs on the Alarm Card give the status of all the
connected units. This means that you only need one alarm card needs to be connected to
the alarm circuitry when the rectifiers are connected in parallel.
The diagram
Figure 5: Alarm Contacts describes the alarm contacts found on the front
panel of the unit .
Figure 5: Alarm Contacts
Refer to section 6.9 Adjusting the alarm output volt low/high setting for information on
adjusting the alarm output volt low/high settings.
3.7 Relays
The relays are Single Pole Double Throw (or changeover). Both Normally Closed (NC) and
Normally Open (NO) contacts are provided. Contact rating is 100v DC, 1A max and all
Common contact for all alarms
(except Mains Fail)
NC = Normally Closed
NO = Normally Open
Clean contacts for Mains Fail status