5 Applications
SAFEONE DN3PD2 Manual 18
5 Applications
5.1 Motor with frequency converter
The operation on electric power drive systems with ad-
justable speed is possible. (Frequency converter)
Note
Please note, that the DN3PD2 is not
suitable for use on thyristor inverters.
5.2 Motor with star-delta circuit
Operation on motors with star-delta connection or pole
changeover is possible. For pole-changing motors, please
note that DN3PD2 detects the frequency and not the
speed!
The measuring inputs U and W are bridged and directly
connected to W1 on the motor.
The measuring input V is directly connected to W2 on the
motor.
5.3 Single-phase motor
Operation on a single-phase motor is possible.
The measuring inputs U and W are bridged and directly
connected to U1 on the motor.
The measuring input V is directly connected to U2 on the
motor.
L1
L2
L3
U1
V 1
W1
FU/ FC
M
3
U
V
W
DN3PD2
L1
L2
L3
U1 V 1
W1
M
3
U
V
W
DN3PD2
U2 V 2
W2