Instructions for use
SCU 835 / SEC 15
The cable glands are to be used as follows:
Cable glands
Clamping range for cables
with Ø
Connection for
M25
(option, right side
*1
)
13 – 18 mm
Relay board
REL 835
M20
(option, right side
*2
)
or,
M20
(option
LAN
, right side
*2
)
10 – 14 mm
or,
5 – 9 mm
or,
6 – 8 mm
4 x Inputs
,
2 x Outputs
or,
RS485 IN
/
RS485 OUT
(twisted-pair) or,
Cat 6
or higher –
LAN
/ Ethernet
M20
(below
*3
)
10 – 14 mm
2 x Alarm
,
2 x Fault
,
Reset
M16
(below
*4
)
5 – 10 mm
+ 24 V DC
(H03VV-F 3x0.75 mm Ø)
M16
(below
*5
)
5 – 10 mm
RS485 IN
/
RS485 OUT
(twisted-pair) or,
RS232
or,
+ 24 V DC
redundant (H03VV-F 3x0.75 mm Ø)
M16
(below
*6
)
5 – 10 mm
Connection cable
CC 15
(
2x2x0.8 mm Ø
)
M16
(below
*7
)
5 – 10 mm
Connection cable
CC 15
(
2x2x0.8 mm Ø
)
Table 11: Using the cable glands
Attention
When mounting the sensor control unit
SCU 835
, use only the mounting holes
as provided.
Use only the supplied cable glands.
Observe test torques at box / cable for cable glands:
Cable gland M25 → 5 Nm at 20 °C.
Cable gland M20 → 4.5 Nm at 20 °C, split cable gland M20 → 4 Nm at 20 °C.
Cable gland M20 with 5-9 mm clamping range as well as M16 → 3 Nm at 20 °C.
Cover screws → 3 Nm at 20 °C.
Do not drill any holes into the connection box.
Close unused openings with plugs / conical silicone plugs.
Use the accompanying seals when inserting glands and plugs.
Provide sufficient space for cable bending radius (
25 cm
for
SEC 15
).
In case of non-observance, any warranty for the IP 65 protection is void!
Note
Installation and general safety instructions are included with each sensor control unit
SCU 835
(→ Docu-
ment no.
60T341
as well as 11.1
).
Drill
four
holes for plastic dowels
Ø 6x30 mm
.
Use a hammer to drive the dowels into the brickwork / concrete as far as possible.
Position the sensor control unit
SCU 835
, aligning the mounting holes and the dowel openings.
Page 38/112
LISTEC GmbH
60T328-02-LI-en / 29.01.2021
Fig. 53: Positioning
SCU 835
Fig. 52: Drilling and dowel setting
