WITA Delta Midi 40 Series, Translation Of The Original Installation And Operating Instructions

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Display HE Pumpen
Operating instrutions
WITA Delta Midi 40-XX | 60-XX
8.2 Solar characteristic (mode 2)
When the PWM signal is switched off, the pump is in stand-by mode. This ensures that the
system does not overheat, even if the controller is defective or the connection cable is broken.
As the PWM signal rises, so does the speed of the pump.
The following characteristic shows how the pump reacts to the various PWM signal levels. To
prevent the system from cycling, the characteristic has a hysteresis in zone B.
A = Stand-by mode OFF
B = Hysteresis ON – OFF
C = Minimum speed
D = Variable speed MIN – MAX
E = Maximum speed
Pump outputs with different PWM signals:
35
LED 2 flashes
PWM (%)
MAX
MIN
A
0 10 20 30 40 50 60 70 80 90 100
speed
B C E D
A > 90% PWM (MAX Characteristic)
B 80% PWM
C 60% PWM
D 40% PWM
E 20% PWM
F 10% PWM (MIN Characteristic)
< 5% PWM Pump is switched off
A > 90% PWM (MAX Characteristic)
B 80% PWM
C 60% PWM
D 40% PWM
E 20% PWM
F 10% PWM (MIN Characteristic)
< 5% PWM Pump is switched off
Characteristic WITA Delta MIDI 60 PWM Mode 2
H
(m)
6
5
4
3
2
1
0
0 1 2 3 4 Qm
3
/h
Characteristic WITA Delta MIDI 40 PWM Mode 2
H
(m)
6
5
4
3
2
1
0
0 1 2 3 4 Qm
3
/h
A
B
C
E
F
D
A
F
B
C
E
D