03/16 10783521 WEB E cod.MF6HT...
5
Nemo D4-L+
1.5b
RS485 BACNET communication
Address number: 0...127
Transmission speed: 9,6 – 19,2 – 38,4 - 76,8 kbit/s
Parity bit: none – even – odd
Network address: 0...65535
1.6
Energy pulses (where provided)
Quantity that can be coupled: active or reactive energy
Pulse weight: 1imp/0,1kWh(kvarh) - 1kWh(kvarh) - 10kWh(kvarh) – 100kWh(kvarh)
Width of the pulse: 50 – 100 – 200 – 300ms
1.7
Display contrast
Selectable values: 0...10
Level 2
Password = 2001
2.1
External VT and CT ratio
Ct = External primary/secondary CT ratio
(ex. CT 800/5A Ct = 160)
Vt =External primary/secondary VT ratio (ex. VT 600/100V Vt = 6)
External CT ratio (Ct): 1…9999
External VT ratio (Vt): 1,0…400,0
Limit produced ratios
CT x VT (Ct x Vt): 100000(CT/5A) – 400000(CT/1A)
For voltage direct connection (with external voltage transformer) load Vt=1,0
By modifying the CT and/or VT ratios, the KWH meters are automatically reset
Phase sequence checking
Pressing ENTER key (in any of the display pages) you can check the correct connection of the voltme-
tric (phase sequence).
If the connection is right, the display doesn’t change.
If the connection is wrong, Err 123 is displayed. In the case you have to modify the voltmetric
connection and repeat the checking until you get the correct sequence.
ATTENTION!
A wrong phase sequence may leads to measuring errors.
1.0 Password 1000
Keep simultaneously pressed the 2 keys until you display page:
Load password 1000 and confirms
moves the cursor
increases the loaded value
↵
confirms
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