Grundfos NBE Series, Инструкция по установке и эксплуатации

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14
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
6.2.1 Additional
operating modes – TPED pumps.
Fig. 14 Connection terminals - TPE, NKE, NKGE and NBE,
NBGE
Fig. 15 Connection terminals - TPED
A galvanic separation must fulfil the requirements for reinforced
insulation including creepage distances and clearances specified
in EN 61800-5-1.
TM
0
3
8
608
2
007
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
Group 1
Group 2 Grou
p 3
TM
03
91
34
34
07
Group 4 Group 2 Group 3
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
Group 1