11
5.2.8 Start/stop of pump
When the pump is switched on via the mains, it will start after
approx. 5 seconds.
If a higher number of starts and stops is desired, use the input for
external start/stop when starting/stopping the pump.
When the pump is switched on via an external on/off switch, it will
start immediately.
Automatic restart
However, automatic restart only applies to fault types set up to
automatic restart. These faults could typically be one of these
faults:
•
temporary overload
•
fault in the electricity supply.
5.2.9 Connections
As a precaution, the wires to be connected to the following
connection groups must be separated from each other by
reinforced insulation in their entire lengths:
Group 1: Inputs
• start/stop
terminals 2 and 3
• digital input
terminals 1 and 9
• setpoint input
terminals 4, 5 and 6
• sensor input
terminals 7 and 8
• GENIbus
terminals B, Y and A
All inputs (group 1) are internally separated from the mains-
conducting parts by reinforced insulation and galvanically
separated from other circuits.
All control terminals are supplied with protective extra-low
voltage (PELV), thus ensuring protection against electric
shock.
Group 2: Output
(relay signal, terminals NC, C, NO)
The output (group 2) is galvanically separated from other
circuits. Therefore, the supply voltage or protective extra-low
voltage can be connected to the output as desired.
Group 3: Mains supply
(terminals L1, L2, L3)
Group 4: Communication cable
(8-pin male socket)
-
only TPED
The communication cable is connected to the socket in group
4. The cable ensures communication between the two pumps,
whether one or two pressure sensors are connected, see
section
5.6 Communication cable for TPED pumps
The selector switch in group 4 enables changeover between
the operating modes "alternating operation" and "standby
operation". See description in section
Fig. 8
Connection terminals - TPE, NKE, NKGE and NBE,
NBGE
Caution
The number of starts and stops via the mains
voltage must not exceed 4 times per hour.
Note
If a pump set up for automatic restart is stopped
due to a fault, it will restart automatically when
the fault has disappeared.
Note
If no external on/off switch is connected,
connect terminals 2 and 3 using a short wire.
T
M
02
84
14
51
03
1 9 8 7
B Y A
0-10 V
0/4-20 mA
4-20 mA
1/0
NC
C NO
L1 L2 L3
10K
RUN
STOP
6 5 4 3 2
0/4-20 mA
0-10 V
1: Digital input
9: GND (frame)
8: + 24 V
7: Sensor input
B: RS-485B
Y: Screen
A: RS-485A
6: GND (frame)
5: + 10 V
4: Setpoint input
3: GND (frame)
2: Start/stop
G
rou
p 1
G
roup 3
G
roup 2
