Startco SE-704, Руководство пользователя

Страница: 7 / 16

Startco Engineering Ltd. Page 3
SE-704 Earth-Leakage Monitor Rev. 2
Pub. SE-704-M, January 18, 2008.
2.3 F
RONT
-P
ANEL
I
NDICATION
2.3.1 P
OWER
The green LED labeled PWR indicates presence of
supply voltage.
2.3.2 T
RIP
The red LED labeled TRIP indicates a trip. A solid red
LED indicates an earth-leakage trip and a flashing LED
indicates a trip initiated by a CT fault. Two fast flashes of
the TRIP LED indicate a diagnostic trip. See Section 2.5.
2.3.3 CT V
ERIFICATION
The green LED labeled CT indicates that an SE-CS30
sensor is connected, even if CT verification is disabled.
2.4 A
NALOG
O
UTPUT
The non-isolated, 0- to 5-V analog output indicates earth-
leakage current sensed by the earth-leakage CT. The output
is 5 V when earth-leakage current is 500 mA.
2.5 S
ELF
D
IAGNOSTICS
A diagnostic trip is indicated by two fast flashes of the
TRIP LED. It can be caused by a problem detected by the
watchdog timer, or from an incorrect reading from non-
volatile memory. Press RESET or cycle supply voltage. If
the problem persists, consult Startco.
3. I
NSTALLATION
This earth-leakage monitoring system consists of an
SE-704 earth-leakage monitor and an SE-CS30 current
sensor connected as shown in Fig. 2.
An SE-704 can be surface or DIN-rail mounted. See
Fig. 1. Panel mounting requires a PMA-55 or PMA-60
Panel-Mount Adapter. See Figs. 5 and 6.
Pass the phase conductors through the CT window and
position them in the centre of the opening (for 4-wire and
single-phase systems, also pass the neutral conductor
through the CT window). Do not pass earth conductors
through the CT window. In applications that require
shields or drain wires to pass through the CT window,
return them through the CT window before connecting
them to earth. Connect an SE-CS30 current sensor to
terminals 4 and 5, connect the shield to terminal 5, and
earth terminal 5. See Figs. 3 and 4 for SE-CS30 current-
sensor dimensional drawings.
Remove the connection to terminal 9 for dielectric-
strength testing.
SE-CS30-X
S1 S2
STOP
START
1M
1M
SE-704
RS
REMOTE RESET
V
LEAKAGE
ANALOG
OUTPUT
O/L
L N
4 5
13 14
15 16
6
7
8
9
L1
11 10
L2
N
ISOLATED CONTACTS
RESET
FIGURE 2. Typical Connection Diagram