22
23
24
• Average currents
• Medium maximum currents
• Average power and maximum average power
• Hour meter
• Active Energy
• Reactive Energy
• Partial 3-phase active energy
• Software version
SINGLE-PHASE LINE:
• Voltage - Current
• Active / reactive / apparent power
• Frequency / 3-phase power factor
• Average and maximum average current
• Average Power and maximum average power
• Hour meter
• Active Energy
• Reactive Energy
• Partial 3-phase active energy
• Software version
PHASES’ SEQUENCE DETECTION
Press
OK
. to check the connection of the phases. The error message ERR 123
appears on the display if the connection is wrong.
HOUR METER
The hour meter counts the hours and minutes of operation. The function is active
when the system detects the presence of the L1 phase.
TECHNICAL FEATURES
Current inputs:
TA with secondary rated current 5A (Imax = 1.2 Inom, Ioverload = 20 Inom / 0.5 sec.)
Voltage inputs:
V phase-phase = 40 ÷ 450V
Dimensions:
4 DIN modules
Operating temperatures:
–5 ÷ 55 °C
DISPLAY
Display menu is subdivided into different pages and it changes according to the
selected connection type.
To scroll the display pages press
▼
To return to the previous pages press
▲
4 WIRE LINE:
• Phase voltage
• Currents
• Linked voltages
• Phase active power P1 / P2 / P3
• Phase reactive power Q1 / Q2 / Q3
• 3-phase powers: active / reactive / apparent
• Neutral current / frequency / 3-phase power factor
• Average currents
• Average maximum currents
• Average power and maximum average power
• Hour meter
• Active Energy
• Reactive Energy
• Partial 3-phase active energy
• Software version
3-WIRE LINE:
• Linked voltages
• Currents
• 3-phase power: active / reactive / apparent
• Frequency / 3-phase power factor
Interface
RS485
RT= Characteristic impedance of the cable
(e.g. 120
Ω
for Belden cable 9841 - 9842).
The end resistances are only inserted
on the first and last RS-485 nodes in the
terminals where the cable is connected.
M7TIC/CM
M7TIC/CM
24V
14
Press
▲
to select the desired connection:
3n3E
3-phase 4-wire line, 3 measuring systems
3-3E
3-phase 3-wire line, 2 measuring systems
3-2E
3 phase 3-wire line, 2 measuring systems (Aron)
1n1E
single-phase line
15
Press
OK
16
The display shows
PMd/ tyPE/ VA (or the last set value)
17
Press the
▲
/
▼
keys to load the quantity that can be associated to the average
power:
W
active power
VA
reactive power
VAR
apparent power
18
Press
OK
19
The display shows
PMD/ time / 0015 (or the last set value)
20
Press the
▲
/
▼
keys to load the average power delay time. The delay time can
be selected on fixed steps: 5 / 8 / 10 / 15 / 20 / 30 / 60
minutes.
21
Press
OK
22
The display shows
Addr/ 255 (or the last set value)
23
Press the
▲
/
▼
keys to load the desired address number
24
Press
OK
25
The display shows
bAUd 9.6 (or the last set value)
26
Press the
▲
/
▼
keys to load the desired Baud rate
27
Press
OK
28
The display shows
PAr / nonE (or the last set value)
29
Press the
▲
/
▼
keys to load the desired parity
30
Press
OK
31
The display shows
Cont/ 10 (or the last set value)
32
Press the
▲
/
▼
keys to load the desired contrast level
33
Press
OK
34
The display shows
PASS/0000
35
Press
▲
to load the access keys (usually 2001)
36
Press
OK
37
The display shows
ct / 0001
(or the last set value)
38
Press the
▲
/
▼
keys to load the external C.T. transformer ratio max. 9999 (e.g.
800/5A = ratio 160)
39
Press
OK
40
The display shows
Vt / 0001.0
(or the last set value)
41
Press the
▲
/
▼
keys to load the external V.T. transformer ratio max. 10.0 (e.g.
600/100V = ratio 6.0). For direct connection, i.e. without external VT, it is
necessary to load a transformer ratio equal to
1,0
42
Press
OK
43
The display shows
SAVE
for a short time and then the meter automatically
leaves the programming menu and goes back to the opening screen.
