Grundfos TPE 2000 Series, Инструкция по установке и эксплуатации

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5.2.5 Motor protection
The pump requires no external motor protection. The motor
incorporates thermal protection against slow overloading and
blocking (IEC 34-11, TP 211).
5.2.6 Protection against mains voltage transients
The pump is protected against voltage transients by built-in
varistors between phase-neutral and phase-earth.
5.2.7 Supply voltage and mains
1 x 200-240 V - 10 %/+ 10 %, 50/60 Hz, PE.
The supply voltage and frequency are marked on the pump
nameplate. Make sure that the motor is suitable for the power
supply of the installation site.
The wires in the terminal box must be as short as possible.
Excepted from this is the protective earth conductor which must
be so long that it is the last one to be disconnected in case the
cable is inadvertently pulled out of the cable entry.
Fig. 3 Mains connection
Cable glands
Cable glands comply with EN 50626.
• 2 x M16 cable gland, cable diameter
∅
4-
∅
10
• 1 x M20 cable gland, cable diameter
∅
10-
∅
14
• 1 knock out for M16 cable gland.
Grid types
Single-phase E-pumps can be connected to all grid types.
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.
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 N, PE, L)
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
5.7 Communication cable for TPED pumps .
The selector switch in group 4 enables changeover between
the operating modes "alternating operation" and "standby
operation". See the description in section
6.2.1 Additional
operating modes - TPED pumps .
TM
02
08
27
21
07
Warning
If the supply cable is damaged, it must be replaced
by qualified staff.
Warning
Do not connect single-phase E-pumps to a mains
supply with a voltage between phase and earth of
more than 250 V.
PE
L
N
Caution
The number of starts and stops via the mains voltage
must not exceed four times per hour.
Note
If no external on/off switch is connected, connect
terminals 2 and 3 using a short wire.