Solenoid Disabling Function (-Np) - Danfoss PVE Series 4 Technical Information

Technical Information
Safety and monitoring
18
PVE, Series 4 for PVG 32/100/120 and PVHC

Solenoid disabling function (-NP)

PVEH-NP and PVEA-NP have a build in feature that disables the solenoids by US at 50% and gives a
feedback on the solenoid status. This is done to facilitate application monitoring. The fault monitoring is
still activated but the closed loop will remain passive until the control signal shifts.
US disable range
Solenoid disable reaction time
Solenoid feedback signal
PVEH-F (six pin) has also the disable function but not the feedback. Our general recommendation is
disabling of PVE that are not in active use.
Solenoid disabling function (-NP) curves
520L0553 • Rev GD • Jan 2014
From active to passive
From passive to active
Maximum load
Voltage if solenoid active by load 20
mA
Voltage if solenoid active by load 50
mA
Voltage if solenoid passive
U
DC
S
fb
U
S
Ground
48 % U to 52 % U
DC DC
750 ms <-> 1000 ms
0 ms <-> 50 ms
50 mA
> U – 1.5 V
DC
> U – 2.0 V
DC
< 1 V