Pvep - Danfoss PVE Series 4 Technical Information

Technical Information
PVE control
PVE, Series 4 for PVG 32/100/120 and PVHC
Recommended PWM frequency for PVE (continued)
PVE type
PVEA/H/S/U
W
Warning
The PWM is not evaluated by the PVE so variance/failure in period (T) will not be detected.

PVEP

The PVEP is designed for PWM control signals only.
PVEP schematic and characteristic
-
U A
s
Position
Set point
-
to PWM
U B
s
- +
11 - 32 V
PVE
W
Warning
It is important that the power supply (U
PWM signals are low power voltage signals; hence no current drivers are needed.
PWM frequency can be chosen between 100 to 1000 Hz.
Current control is not possible with PVEP. The PVEP can also be connected to a control signal like used for
PVHC.
The PVEP performs a true time difference measurement on the PWM input, thus there is no filtering or
conversion involved.
PVEP signals
Duty cycle A-signal Duty cycle B-signal
(pin 1) (pin 2)
0% 0%
520L0553 • Rev GD • Jan 2014
PWM frequency
> 1 kHz
Driver
A
Sense
Driver
B
Sense
) is connected before the PWM signal.
DC
Function
Neutral
Spool travel
mm [in]
Proportional control range
7.5
[0.3]
-7.5
[-0.3]
10%
PWM ratio
V310137.B
Error Pin output
(pin 3)
Low
B
A
80%
27