Wilo ER-2 Notice De Montage Et De Mise En Service page 15

Chart I: Functions of potentiometers and hook switches
Switch/Pot. Functions
Potentiometer for FLC-settings:
P1 for No. 1 pump
P2 for No. 2 pump
P3 for No. 4 pump
P4 for No. 3 pump
P8 to set pump stop time delay (0 – 2 min)
P9 to set pump stop time delay on low water cut-out (0 – 2 min)
Setting pressure setpoints (see pump duty chart, Fig. 5)
p max 2 P5 – base-load pump switch-off pressure
p max 1 P6 – base-load pump switch-off pressure
p P7 – switch-on pressure for all pumps
min
S 1 Effect reversal for input low-water cut-out:
S 1 open: Plant runs on closed contacts on terminals WM,
S 1 closed: Reverse action.
S 2 Test run:
S 2 open: Test run activated
S 2 closed: Test run deactivated
S 5 Sensor input:
S 5 open: Plant stops on opening of sensor contacts (without fault signal)
S 5 closed: Plant runs on opening of sensor contacts (oll pumps)
S 3, 4, 7 Setting to the number of controlled pumps:
No. of pumps:
1:
2:
3:
4:
0 ¡ open, 1 ¡ closed
Motor fuses, 6.3 diam. x 32 mm, 16 amps inert, 440 V
for pumps:
F1-3 P1
F4-6 P2
F11-13 P3
F14-16 P4
F7 Control circuit fuse: 6,3 diam. x 32 mm, 0.1 mA, 250 V
Chart II: Settings of hook switches and potentiometers for different applications
Switch/Pot.
S 5
S 2
S 1
* 0 ¡ open, 1 ¡ closed
Technical modifications reserved !
plant stops on open contacts on terminals WM
Hook switch positions:
Phases:
Fuses:
(Fig. 2/3)
S 3 S 4
1 0
0 1
0 0
0 0
L01 L02 L03
F01 F02 F03
F04 F05 F06
F11 F12 F13
F14 F15 F16
Pressure boosting
*0*
0
0
Set FLC value to motor name plates
2
0.5
S 7
0
0
1
0
Fire services
*1*
0
0
2
0.5
ENGLISH
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