Setting The Command Value; Setting The Ramp Time - Bosch Rexroth VT-VSPA2-1-2X Series Manual

Analog amplifier card
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option VT-.../T1
option VT-.../T5
Setting ramp
times internally
Conversion table
J3
U
/V
test socket
Open (= basic
t/msec ±20 %
setting)
Plugged
t/sec ±20 %
option VT-.../T1
option VT-.../T5
2.
Set measuring point selector switch to "6".
3.
Set internal command value to 0 V using the potentiometer "Zw". Check the set-
ting of the measuring socket "w".
8.2.2

Setting the command value

Procedure:
1.
Select the command value that is to be set (1, 2, 3, or 4) using a call-up signal
(command value call-up 1 to 4).
2.
Set the desired command value using the associated potentiometer "w1"
(or the connected external potentiometer). Check the setting of the measuring
socket "w".
You can now set the next command value.
Procedure:
1.
Select the command value that is to be set (1, 2, 3, or 4) using a call-up signal
(command value call-up 1 to 4).
2.
Switch the measuring point selector switch to the command value that is to be
set (switch position 1, 2, 3 or 4 = command value call-up 1 to 4).
3.
Set the desired command value using the associated potentiometer "w1"..."w4"
(or the connected external potentiometer). Check the setting of the measuring
socket "v".
8.2.3

Setting the ramp time

You can use the ramp time setting to limit the stop of the hydraulic drive.
The table below lists the ramp time corresponding to the measured test voltage.
The conversion formula is:
Table 9: Ramp times and test voltages
5
3
2
1
20
33
50
100
0.2
0.33
0.50
1
Procedure:
Set the ramp time using the potentiometer "t" according to the conversion for-
mula or conversion table. Check the setting of the measuring socket "t".
Procedure:
1.
Switch the measuring point selector switch to the ramp time that is to be set
(t1 to t5).
2.
Set the ramp time using the associated potentiometer (t1 to t5) according to
the conversion formula or conversion table. Check the setting of the measuring
socket "v".
You can now set the next ramp time (repeat procedure).
t =
100 msec
/ U
/V
test socket
0,5
0,3
0,2
0,1
200
333
500
1000
2
3.33
5
10
RE 30110-B/11.2012, VT-VSPA2-1-2X/V0/T., Bosch Rexroth AG
Commissioning
29/40
...
"w4"
0,05
0,03
0,02
2000
3333
5000
20
33
50

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