26/36 Commissioning
Bosch Rexroth AG
, Valve amplifier VT-MRPA1, RE 30220-B/05.2019
Parameter
LED
indicator
lamps
Description
Editable
parameter
Output at test jack v
2Q ramp t2,
2nd quadrant
(
[
positive command value
]
,
falling)
t
Z
G
x
t
t
t
Ramp time
2nd quadrant
1)
0/10 ms...1000 ms:
0/10 mV...1.00 V (1 s/V)
1 s...5 s:
1.0 V...5.0 V (1 s/V)
5 s... 30 s
5.0 V ... 10 V
U = 0.2 V/s * t + 4 V
Actual value zero point Zx
t
Z
G
x
Zx
Actual value zero
point
0 %...±15 %:
0 V...±1.5 V (0.1 V/%)
Actual value sensitivity Gx
t
Z
G
x
x
y
Gx
Actual value
sensitivity
90 %...110%:
0.90 V...1.1 V
1) Ramp times effective only when 2Q operating mode is activated
8.6 Restoring the VT-MRPA1-2X to factory settings
This function is available exclusively directly upon switching on the operating voltage.
It resets all customer-specific parameters of the set valve size to factory settings.
The module has to be de-energized.
1.
Press [Set]
, hold it depressed for longer than a second and switch the supply
voltage on.
The LEDs signal the status shown on the left.
1.
After some time, the LEDs switch to the status shown on the left.
The module is restored to factory settings.
2.
Release [Set]
.
Restoring to factory settings is completed.
t
Z
G
x
t
Z
G
x