Bosch Rexroth VT-VSPA2-1-2X Series - Setting Command Values and Ramp Times

Commissioning 29/40
RE 30110-B/11.2012, VT-VSPA2-1-2X/V0/T., Bosch Rexroth AG
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"
..."w4"
(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: t =
100 msec
/ U
test socket
/V
Table 9: Ramp times and test voltages
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).
Option VT-.../T1
Option VT-.../T5
Setting ramp
timesinternally
Conversion table
J3 U
test socket
/V 5 3 2 1 0,5 0,3 0,2 0,1 0,05 0,03 0,02
Open (= basic
setting)
t/msec ±20 % 20 33 50 100 200 333 500 1000 2000 3333 5000
Plugged t/sec ±20 % 0.2 0.33 0.50 1 2 3.33 5 10 20 33 50
Option VT-.../T1
Option VT-.../T5