Contact at P201
Signal
Cable colour
PE
Cable shield
SEC 15
/
ESD-A5
(insulate with heat shrinkable tubing)
[BK]
A-G
GND SEC
I
[BU] or [BN]
A-DQ
DQ SEC
I
[RD] or [WH]
Table 16: Pin assignment at
P201
Contact at P202
Signal
Cable colour
PE
Cable shield
SEC 15
/
ESD-A5
(insulate with heat shrinkable tubing)
[BK]
B-G
GND SEC
II
[BU] or [BN]
B-DQ
DQ SEC
II
[RD] or [WH]
Table 17: Pin assignment at
P202
6.4
External reset
Alarms and faults
cannot
be reset on the front panel of the
SCU 835
. For this reason, the external reset input on
P401
must
be connected to the
FACP
in order to acknowledge any alarms and reset the device to its initial position
(→ 3.15).
Attention
Alarms are
not
reset automatically!
Alarms can only be reset if the corresponding alarm criterion is no longer fulfilled. In other words, the cur-
rent temperature value
must be 20% below
the set differential alarm threshold or
5% below
the max-
imum alarm threshold.
Faults are
not
reset automatically.
Faults can
only
be reset, if the reason for the fault has been cleared.
Contact at P401
Signal
Cable colour
RESET -
0V
from
FACP
[BK]
RESET +
+24 V DC
from
FACP
(
+5 … +30 V DC, 3 mA
)
[RD]
Table 18: Pin assignment at
P401
60T328-02-LI-en / 29.01.2021
LISTEC GmbH
Page 51/112
Fig. 100: Circuit board cut-out for
MB SCI 835
terminal block → cable port
SEC
II
Fig. 101: Circuit board cut-out for
MB SCI 835
terminal block
→ reset input
II
