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Verfügbare Sprachen
Installation
7.5
Electrical connection
DANGER
Risk of serious injury or death due to electric shock.
If live parts are touched, there is risk of life-threatening injuries.
•
Ensure that the system is voltage-free before installing the device.
•
Ensure that the system is secured and cannot be reactivated by other
persons.
•
Ensure that installation work for the electric connection of the device is
carried out by an electrician, and in compliance with electrical
engineering regulations.
For the electrical connection, you must differentiate between a connection
component and an operating component.
Connection component cover
1
(hinged)
2
Main switch
3
Operating unit cover (hinged)
•
RS-485 interfaces
•
Pressure and Level
outputs
The following descriptions apply to standard systems and are limited to the
necessary user-provided connections.
1.
Disconnect the system from the power source and secure it against
unintentional reactivation.
2.
Remove the covers.
DANGER Risk of serious injury or death due to electric shock. Some
parts of the device's circuit board may still be live with 230 V even after the
device has been physically isolated from the power supply by pulling out of
the mains plug. Before you remove the covers, completely isolate the
device controller from the power supply. Verify that the main circuit board
is voltage-free.
3.
Insert a suitable screwed cable gland for the cable bushing at the rear of
the connection component. M16 or M20, for example.
4.
Thread all cables to be connected through the cable glands.
5.
Connect all cables as shown in the terminal diagrams.
–
For installer supplied fusing, comply with the connected loads of the
device , 6 "Technical data", 33.
6.
Install the cover.
7.
Connect the mains plug to the 230 V power supply.
8.
Activate the system.
The electrical connection is completed.
7.5.1
Terminal plan, connection component
38 — English
4
Touch control
5
Connection component rear
6
Cable bushings
•
Supply and fusing
•
Floating contacts
•
Pump connection "PU"
Variomat 140 — 25.09.2020 - Rev. A
1
Pressure
2
Level
Terminal
Signal
number
Supply
X0/1
L
X0/2
N
Supply 230 V, maximal 16 A
X0/3
PE
X0/1
L1
X0/2
L2
X0/3
L3
Supply 400 V, maximal 20 A
X0/4
N
X0/5
PE
Circuit board
1
PE
2
N
Voltage supply
3
L
4
Y1
5
N
Make-up solenoid valve WV
6
PE
7
Y2
PV 1 overflow valve (motor ball
8
N
valve or solenoid valve)
9
PE
10
Y3
PV 2 overflow valve (motor ball
11
N
valve or solenoid valve)
12
PE
13
Dry-run protection message
(floating)
14
15
M1
16
N
PU 1 pump
17
PE
18
M2
19
N
PU 2 pump
20
PE
21
FB1
Pump 1 voltage monitoring
22a
FB2a
Pump 2 voltage monitoring
22b
FB2b
External make-up request
together with 22a
23
NC
24
COM
Group message (floating)
25
NO
27
M1
Flat plug for supply, pump 1
31
M2
Flat plug for supply, pump 2
35
+18 V (blue)
Analogue input, LIS level
36
GND
measuring
37
AE (brown)
at the primary vessel
38
PE (shield)
39
+18 V (blue)
Analogue input, "PIS" pressure
40
GND
measuring
41
AE (brown)
at the primary vessel
42
PE (shield)
3
Fuses
Function
Wiring
User
supplied
User
supplied
Factory-
provided
User,
optional
--
---
User,
optional
Factory-
provided
Factory-
provided
Factory-
provided
Factory-
provided
Factory-
provided
User,
optional
Factory-
provided
Factory-
provided
User
supplied
User,
optional
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