38 / 248
559E1200.indd
version: 1.0
Functions and
characteristics
Switchboard-display functions
Micrologic 5 / 6 A or E trip units
Micrologic measurement capabilities come
into full play with the FDM121 switchboard
display. It connects to Compact NSX via a
simple cord and displays Micrologic
information. The result is a true integrated
unit combining a circuit breaker and a
Power Meter. Additional operating
assistance functions can also be displayed.
FDM121 switchboard display
The FDM121 is a switchboard display unit that can be integrated in the Compact
16; WR $ V\VWHP ,W XVHV WKH VHQVRUV DQG SURFHVVLQJ FDSDFLW\ RI WKH
Micrologic trip unit. It is easy to use and requires no special software or settings. It is
LPPHGLDWHO\ RSHUDWLRQDO ZKHQ FRQQHFWHG WR WKH &RPSDFW 16; E\ D VLPSOH FRUG
The FDM121 is a large display, but requires very little depth. The anti-glare graphic
screen is backlit for very easy reading even under poor ambient lighting and at sharp
angles.
Display of Micrologic measurements and alarms
The FDM121 is intended to display Micrologic 5 / 6 measurements, alarms and
operating information. It cannot be used to modify the protection settings.
Measurements may be easily accessed via a menu.
$OO XVHU GH¿QHG DODUPV DUH DXWRPDWLFDOO\ GLVSOD\HG 7KH GLVSOD\ PRGH GHSHQGV RQ
the priority level selected during alarm set-up:
high priority: a pop-up window displays the time-stamped description of the alarm
b
DQG WKH RUDQJH /(' ÀDVKHV
medium priority: the orange "Alarm" LED goes steady on
b
low priority: no display on the screen.
b
All faults resulting in a trip automatically produce a high-priority alarm, without any
special settings required.
In all cases, the alarm history is updated.
If power to the FDM121 fails, all information is stored in the Micrologic non-volatile
memory. The data is automatically recovered when power is restored and can be
consulted via the communication system.
Status indications and remote control
When the circuit breaker is equipped with the BSCM module
(page A-27)
, the
FDM121 display can also be used to view circuit breaker status conditions:
2 ) 21 2))
b
SD: trip indication
b
SDE: Fault-trip indication (overload, short-circuit, ground fault)
b
Main characteristics
[ [ PP VFUHHQ UHTXLULQJ PP EHKLQG WKH GRRU RU PP ZKHQ WKH
b
24 volt power supply connector is used).
White backlighting.
b
:LGH YLHZLQJ DQJOH YHUWLFDO KRUL]RQWDO
b
+LJK UHVROXWLRQ H[FHOOHQW UHDGLQJ RI JUDSKLF V\PEROV
b
$ODUP /(' ÀDVKLQJ RUDQJH IRU DODUP SLFN XS VWHDG\ RUDQJH DIWHU RSHUDWRU UHVHW LI
b
alarm condition persists.
2SHUDWLQJ WHPSHUDWXUH UDQJH & WR &
b
CE / UL marking.
b
9 '& SRZHU VXSSO\ ZLWK WROHUDQFHV 9
9 WR 9
9
b
When the FDM121 is connected to the communication network, the 24 V is supplied
by the communication system wiring system.
Consumption 40 mA.
b
Mounting
The FDM121 is easily installed in a switchboard.
6WDQGDUG GRRU FXW RXW
[ PP
b
Attached using clips.
b
To avoid a cut-out in the door, an accessory is available for surface mounting by
drilling only two 22 mm diameter holes.
7KH )'0 GHJUHH RI SURWHFWLRQ LV ,3 LQ IURQW ,3 LV PDLQWDLQHG DIWHU
switchboard mounting by using the supplied gasket during installation.
Connection
The FDM121 is equipped with:
a 24 V DC terminal block:
b
plug-in type with 2 wire inputs per point for easy daisy-chaining
v
SRZHU VXSSO\ UDQJH RI
9
9 WR 9
9
v
two RJ45
j
acks.
b
The Micrologic connects to the internal communication terminal block on the
&RPSDFW 16; YLD WKH SUH ZLUHG 16; FRUG &RQQHFWLRQ WR RQH RI WKH 5-
connectors on the FDM121 automatically establishes communication between the
Micrologic and the FDM121 and supplies power to the Micrologic measurement
functions.
:KHQ WKH VHFRQG FRQQHFWRU LV QRW XVHG LW PXVW EH ¿WWHG ZLWK D OLQH WHUPLQDWRU
3%
3%
FDM121 display.
Surface mount accessory.
3%
Connection with FDM121 display unit.
A-24