Industrial Hydraulics

Electronic components
1) 1 ramp time
2) 5 ramp times
90 Industrial Hydraulics Bosch Rexroth AG
Amplifiers for proportional valves without electrical position feedback
< Analogue amplifiers of Euro-card format for installation in 19" racks
< Voltage stabilization with raised measuring zero point, filter capacitor on the amplifier card
< Differential input, can be changed over to current input (on some versions)
< Internal command value adjustment by means of 4 trimming potentiometers, call-up via
relays, with LED indicator lamp (on some versions)
< Ramp generator can be switched off
< 5 ramp times, adjustable using trimming potentiometers (on some versions)
< Step function for quick passing of overlaps on directional valves
< Clocked output amplifier with current regulation
< Enable input (on some versions)
< Message "ready for operation" (on some versions)
Technical data
Operating voltage UB VDC 24; + 40 %; – 5 %
– Upper limit value UB (t) max V 35
– Lower limit value UB (t) min V 22
Output amplifier Current-regulated, clocked
Type of connection 32- or 48-pin male connector, DIN 41 612, form D
Card dimensions mm Euro-card 100 x 160, DIN 41 494
Ambient temperature range ϑ °C 0 to + 50
Storage temperature range ϑ °C – 25 to + 85
Detailed information: Amplifier type Suitable for valve type
RE 30111 VT-VSPA1-1-1X For proportional pressure valves without electrical position feedback
RE 30112 VT-VSPA2-1-1X/T1 1) 4WRA, sizes 6 and 10 (series 2X)
RE 30112 VT-VSPA2-1-1X/T5 2) 4WRA, sizes 6 and 10 (series 2X)
RE 30113 VT-VSPA2-50-1X/T1 1) 4WRZ (series 7X); DREP 6 (series 2X)
RE 30113 VT-VSPA2-50-1X/T5 2) 4WRZ (series 7X); DREP 6 (series 2X)
RE 30115 VT-VSPA1-2-1X DBET (series 6X)