Page 30
7.2 Cable Connections
The table below shows the quantities and
dimensioning of the cable connections pro
-
vided by the various FlexLine housing types.
*)
MSI = Multiple seal insert
**)
Ø 25 mm/~ 1.0 inch
Characteristics
of metric cable connec
-
tions
7.3 Connection of interlock
(safety) system
Danger of electric shock!
Dangerous electric voltage!
After the commisioning of the unit, a 230 VAC
voltage is present at terminal 1 when stan
-
dard wiring is used.
The so-called interlock (safety) system is
located between terminals 1 and 2 with termi
-
nal 1 holding 230 VAC. For closing the inter
-
lock, a make contact is required across
terminals 1 and 2. This contact is supplied by
relay K21. For energising the relay, a make
contact or a bridge is required across the
additional terminals on the hat-top rail.
If the interlock (safety) system is open, the
humidifier does not start or the operation is
interrupted.
Safety equipment can be wired (also in
series) into the interlock (safety) system, as
shown in the fig. below:
Model
M25
M25
MSI
*)
M40
Blind
plug
**)
FLP05/08
1
1
0
3
FLP15/25
1
1
0
3
FLP30/40/
FLP50
0
1
1
3
Thread
Wrench
size [mm/
in.]
Cable diameter sup
-
ported [mm/in.]
M25x1.5 30/~ 1.2
9 - 17/~ .35 - .67
M25 MSI
*)
30/~ 1.2
6 (3x)/~ .24 (3x)
M32x1.5 36/~ 1.4
13 - 21/~ .51 - .83
M40x1.5 46/~ 1.6
16 - 28/~ .63 - 1.1
WARNING
!
2 1 L N
Terminal strip ST1
on mainboard or
ST1.1 on an exten
-
sion or relay board
1 2
+12 VDC (internal)
K21
Additional terminals
on hat-top rail
Terminals 1/2 for connection of the interlock
(safety) system made accessable via relay K21
