Start/Stop Of Pump - Grundfos TPE Betriebshandbuch

Cable glands
Cable glands comply with EN 50626.
1 x M40 cable gland, cable diameter ∅16-∅28
•
1 x M20 cable gland, cable diameter ∅9-∅17
•
2 x M16 cable gland, cable diameter ∅4-∅10
•
• 2 x M16 knock-out cable entries.
Warning
If the supply cable is damaged, it must be
replaced by qualified personnel.
Grid types
Three-phase E-pumps can be connected to all grid types.
Warning
Do not connect three-phase E-pumps to a mains
supply with a voltage between phase and earth of
more than 440 V.

5.3.8 Start/stop of pump

The number of starts and stops via the mains
Caution
voltage must not exceed 4 times per hour.
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.
5.3.9 Connections
If no external on/off switch is connected,
Note
connect terminals 2 and 3 using a short wire.
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)
16
ГК Водная техника info@water-technics.ru (495) 771 72 72 www.water-technics.ru
Интернет-магазин info@wtpump.ru (499) 937 50 61 (800) 505 78 67 www.wtpump.ru
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
The selector switch in group 4 enables changeover between
the operating modes "alternating operation" and "standby
operation". See description in section
operating modes - TPED pumps.
Fig. 14 Connection terminals - TPE, NKE, NKGE and NBE,
NBGE
pumps.
6.2.1 Additional
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