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Electrical amplifiers
Type VT-VSPA1-1 and VT-VSPA1K-1
Component series 1X
RE 30111/09.05
Replaces: 02.03
Table of contents
Contents Page
Features 1
Ordering code 2
Functional description 2 and 3
Block circuit diagram / pin assignment VT-VSPA1-1 4
Block circuit diagram / pin assignment VT-VSPA1K-1 5
Technical data 6
Output characteristic curves 7
Indicator / adjustment elements 8 and 9
Meaning of DIL switches 10
Unit dimensions 11
Engineering / maintenance notes / supplementary in for ma tio n 11
Troubleshooting 12
Features
– Suitable for controlling all direct and pilot operated proportion-
al pressure control valves without electrical position feedback
and only one solenoid as actuator that are available at the time
of publication of this data sheet
– Differential input, can be switched between voltage and cur-
rent input
– Additional command value input, 0 to +9 V
–
Ramp generator, can be adjusted separately for up and down ramps
– Clocked output stage
– Signal "ready for operation" (VT-VSPA1K-1 only with LED
indicator lamp)
– Reverse polarity protection for voltage supply
– Cable break detection of current input 4 to 20 mA
– Short-circuit protection of solenoid cable
– Cable break detection of solenoid cable
H5897_d
Suitable card holders for VT-VSPA1-1:
– Type VT 3002-2X/32, see RE 29928
Single card holder without power supply unit
Suitable power supply unit:
– Type VT-NE30-1X, see RE 29929
Compact power supply unit 115/230 VAC → 24 VDC, 108
W
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