Commissioning 21/36
RE 30220-B/05.2019, Valve amplifier VT-MRPA1, Bosch Rexroth AG
8.2.2 Test jacks
x Current actual value
w Internal command value
Reference potential
v Internal command value or set value
8.3 Selecting the valve sizes
When selecting a valve, the operator generally must ensure that no command value
and no enable is applied to the VT-MRPA1!
The desired valve size has to be selected by means of the rotary switch, see Abb. 4
item 4. While you make the settings, test jack “v“ outputs the selected rotary switch
position as a voltage value in 100-mV increments.
The following valve sizes are available.
VT-MRPA1-2X
Standard Expert
Rotary switch
position
Size t Z G 2Q t1 t2 Zx Gx
0 No selection – – – – – – – –
1 2WFC16...-1X
● ● ● ● ● ● ● ●
2 2WFC25...-1X
● ● ● ● ● ● ● ●
3 2WFC32...-1X
● ● ● ● ● ● ● ●
4 2WFC40...-1X
● ● ● ● ● ● ● ●
5 2WFC50...-1X
● ● ● ● ● ● ● ●
When the rotary switch is set to position “0“, the LEDs signal the status shown on
the left. The yellow LEDs rotate clockwise in pairs.
Indicator lamps Operational state Display mode Meaning
LED
“Enable“
(yellow)
Normal operation Permanently ON/OFF Status of enable input
Setup Flashing Standard setup active
Setup OFF Expert setup active
LED
“ready” (red/
green)
Normal operation Permanently on green Module ready for operation
Normal operation Permanently on red Error
Normal operation and setup Blinking red/green Valve number changed (but not confirmed)
Normal operation and setup Blinking red Invalid valve number
Normal operation OFF Module not ready for operation
Setup Flashing green Expert setup active
t
Z
G
x
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