Grundfos UPS3 Instructions Manual page 11

INTERNALLY
CONTROLLED
17a
L
PE
N
1 × 230 V -15 %/+10 %
∽ 50/60 Hz
20 20
EXTERNALLY CONTROLLED
PWM A PROFILE
17b
1 × 230 V -15 %/+10 %
∽ 50/60 Hz
IN
REF
OUT
L
PE
N
21