Grundfos UPM3 Installation And Operating Instructions Manual page 17

[%]
A
100
B
C
90
D
80
F
70
60
50
E
40
30
20
10
25 50 100
PWM feedback signal, UPM3 power consumption
[%]
A
100
B
C
90
D
80
70
60
50
G
40
30
20
10
25 50 100
PWM feedback signal, UPM3L power consumption
Pos. Description
X-axis Output power consumption [W]
Y-axis PWM output signal in percentage [%]
A Standby (stop)
B Alarm stop: fault, blocked pump
C Alarm stop: electrical fault
D Warning
E Slope: 1 % / watt PWM signal
F Saturation at 70 W
G Slope: 2 % / watt PWM signal
H Saturation at 140 W
PWM out-
QT
put signal
Pump info
[s]
[%]
Standby (stop) by PWM sig-
95 0
nal
90 30 Alarm, stop, blocked error
85 0-30 Alarm, stop, electrical error
75 0 Warning
0-70 0-70 W (slope 1 W/% PWM)
Output frequency: 75 Hz ± 5 %
QT = qualification time, DT = disqualification time
[W]
150 200 250
H
[W]
150 200 250
DT
Priority
[s]
0 1
12 2
1-12 3
0 5
6
8.2.5 Control signal data levels
Maximum rating
PWM frequency input with high-
speed optocoupler
Rated input voltage - high level
Rated input voltage - low level
High-level input current
Input duty cycle
PWM frequency output, open collec-
tor
Accuracy of output signal regarding
power consumption
Output duty cycle
Collector emitter breakdown voltage
on output transistor
Collector current on output transistor
Maximum power dissipation on output
resistor
Zener diode working voltage
Maximum power dissipation in Zener
diode
* Only for standard profiles.
Symbol Value
*
f 100-4000 Hz
U
4-24 V
iH
U
< 1 V
iL
I
< 10 mA
iH
PWM 0-100 %
f 75 Hz ± 5 %
± 2 % (of PWM
-
signal)
PWM 0-100 %
U
< 70 V
c
I
< 50 mA
c
P
125 mW
R
U
36 V
z
P
300 mW
z
17