Bosch | VT-VRPD-2 | RE 30 126 - Airline Hydraulics

RE 30 126 - Airline Hydraulics
Digital valve amplifier
for valve types
4WRE 6 ..., component series 2X
4WRE 10 ..., component series 2X
RE 30126/09.07
Replaces: 09.05
1/10
Typ VT-VRPD-2
Component series 2X
H7356_d
Table of contents
Features
Content
Page
Features
1
Ordering code
2
Functional description
3
Block circuit diagram
4
Technical data
5 and 6
–Suitable for controlling proportional valves with electrical position feedback, types:
4WRE 6, component series 2X
4WRE 10, component series 2X
–User data can be exactly reproduced and are protected
against unintended or unauthorized changes
– Use of a powerful microcontroller
Pin assignment of multi-point connector
7
–Valve selection using operating software BODAC
Pin assignment of D-SUB Buchse
8
–Command value input, optional as voltage or current interface
Unit dimensions
8
–Voltage input as differential input
Engineering / maintenance notes / supplementary information 9
–Command value input with variable input adjustment
–Ramp generator
–Digital inputs for calling pre-set command value parameters
–Enable input and fault output
–Switched-mode power supply unit for internal supply voltages
–Freely configurable measuring sockets X2 (X1 positively assigned to actual valve value)
–Configuration and parameterization via serial interface using
PC software BODAC (CD:SYS-HACD-BODAC-01)
Connection cable for BODAC
– Up to 32 valve amplifiers can be interconnected via local bus
for parameterization and diagnostics purposes
2/10
Bosch Rexroth AG Hydraulics
VT-VRPD-2
RE 30126/09.07
Ordering code
VT-VRPD
2
2X V0
0
0
1
1 =
Digital amplifier for proportional valves
with electrical position feedback
Amplifier for valve types 4WRE 6 …-2X and 4WRE 10 …-2X
Component series 20 to 29
(20 to 29: unchanged technical data and pin assignment)
Standard types
Material number
VT-VRPD-2-2X/V0/0-0-1
R901066987
=2
0 =
= 2X
0 =
V0 =
With valve output stage
(Attention: Suitable only for
valve with two solenoids!)
Basic device
Without display
Basic device
Required accessories:
–PC program BODAC: Ordering code of CD: SYS-HACDBODAC-01 (R900777335) or free download on the Internet
at www.boschrexroth.com/hacd
–Interface cable: Cable set VT-HACD-1X/03.0/
HACD-PC (R900776897) or commercial 1:1 cable
Suitable card holders:
–19“ racks VT 19101, VT 19102, VT 19103 and VT 19110 (see
RE 29768)
–Enclosed card holder VT 12302 (see RE 30103) (standard),
Mat. no. R900784153
–Open card holder VT 3002-2X/64G (see RE 29928), Mat.
no. R900991843 (only for installation into control cabinet!)
–Connection adapter VT 10812-2X/64G (see RE 30105),
Mat. no. R900713826
RE 30126/09.07
VT-VRPD-2
Hydraulics Bosch Rexroth AG
3/10
Functional description
The amplifier card is designed as double-sided printed-circuit
board in Euro-format 100 x 160 mm with daughterboard.
A microcontroller is the central unit of the amplifier. It controls
the entire sequence and implements closed-loop position control. Data for the configuration, command value feedforward,
and parameters are saved in a non-volatile FLASH.
Four binary-coded, digital inputs are used for calling up parameter sets (command values) from the memory, in which a maximum of 16 sets can be saved. A call-up activates the command
value for the valve spool position with the associated ramp
times.
Further control inputs have the following function:
“Command valid”: Enable of the parameter set addressed by
the current call-up (H-active)
“Enable”:
Activation of outputs (fault message acknowledgement by Low→High edge)
The amplifier card includes a controller for the spool position of
a proportional valve.
The command value can be provided via digital command value
call-ups [5] and/or via analog inputs [1]. Analog input AI4 (b14/
b16) must be used for command values of ±10 V, analog input
AI6 (b22/b24) for command values of 4 to 20 mA.
Command values of 0 to +10 V (12...20 mA) control solenoid B.
Command values of 0 to –10 V (4...12 mA) control solenoid A.
The digital command value is added to the analog command
value with the correct sign in accordance with the set call-up.
The signal level of the command value inputs can be varied by
means of the software.
Apart from the possibility of generating ramps internally, it is
possible to influence “up” and “down” ramps of external signals
with correct sums and signs via analog inputs AI2 (b6/b9) and
AI5 (b18/b20).
For 4WRE valves, a step function generator [9] is provided by
the software to realize an overlap jump when a spool with overlap is selected. The command value sum is fed to the controller
[12]. The actual valve value (b26) is generated by means of an oscillator/demodulator stage from the valve position measuring
system and also fed to the controller [12]. The controller output
controls the current-regulated output stages.
Enable and fault messages
The closed-loop control is activated by a H-level at the enable
input. If no command value call-up is active, digital call-up 0 is
set.
A fault logic [14] recognizes control deviations, a cable break
of actual value cables and of the command value input for
4 to 20 mA as well as an inactive enable input. In the case of
a fault, a fault message is output to (d22) by a Low signal and
signaled visually by LED “OK” (OK goes out) on the front panel. It is possible to configure the enable so that an inactive enable input is not signaled as a fault.
Parameterization and diagnosis
The selection of the valve to be controlled and the selection
and configuration of the command value input, the ramp generator, the enable input, and the setting of the command value
call-up parameters are made via the serial interface [6] at the
front D-SUB socket [7]. Up to 32 valve amplifiers can be interconnected via the local bus. A bus address is assigned to each
valve amplifier via BODAC. Re-plugging of the serial interface
cable is not required.
For further information, see RE 30126-01-B.
Digital outputs
DO 1 (d20)
Solenoid A active
DO 2
(d26)
Solenoid B active
DO 3
(z22)
System deviation ≥ window
DO 4
(z24)
Freely configurable
DO 5
(z26)
Freely configurable
DO 6
(z28)
Freely configurable
DO 7
(f2)
Not assigned
Indicator elements and measuring sockets
The front panel of the command value card is provided with
measuring sockets for the two analog outputs.
Measuring socket “X1”: Actual valve value (b26)
Measuring socket “X2”:
Valve command value (default)
Measuring socket “⊥”:
Reference potential (corresponds to connection z32)
The following states are signaled by LEDs:
LED “ ” (green):
Enable active
LED “OK” (green):
OK ready for operation
LEDs “I1“...”I4” (yellow):
Binary-coded command value call-ups
LED “I6“ (yellow)
Command valid
LED “I5, I7“ (yellow)
Not assigned
[ ] = Cross-reference to block circuit diagram on page 4
1
2
3
4
5
6
DC
DC
Binary 1
Binary 2
Binary 4
Binary 8
Command valid
U/U or I/U converter
Analog input adjustment
Switching matrix
Switched-mode power supply unit
Binary command value call-ups
Control of binary call-ups
0V
z30
z32
z20
d24
d28
d18
d2
d4
d6
d8
d12
b14
b16 U U
b22 I
b24 U
b6 U
b8
U
b18 U
b20 U
2
7
8
9
10
11
12
16
5
3
RS 232
17
Control of
binary call-ups
6
Characteristic curve adaptation
Step function generator
Offset
Limitation
PID controller
Oscillator / demodulator
%
t
10
9
8
7
X2 X1
PI
PI
15
U
12
U
=
=
u
u
z18
z2
z4
z10
z8
b30
b32
d22
d20
d26
z22
z24
z26
z28
f2
b26
b28
d30
⊕ z14
z10
⊕ z12
z16
i
i
z6
–10V
+10V
OK
DO 1
DO 2
DO 3
DO 4
DO 5
DO 6
DO 7
Valve command value (default)
Reference potential (0 V)
VT-VRPD-2
X2
⊥
Solenoid A
a
Valve
AO1 comm. value (± 10 V)
AO3 Actual
valve value (± 10 V)
4
1
2
3
2
1
Solenoid B
1
b
2
Measuring sockets:
Actual valve value
X1
Solenoid A active
Solenoid B active
Control deviation ≥ window
Freely configurable
Freely configurable
Freely configurable
Not assigned
13
PID
11
Measuring sockets
Digital outputs
Fault logic
Local bus
Serial interface
14
LC1
13
14
15
16
17
Binary 15
Binary 0
S-ramp end
S-ramp start
Ramp “down“
Comm. value internal Ramp “up“
4
Bosch Rexroth AG Hydraulics
+ UB
System ground
Data +
Data –
Enable DI 9
DI 4
DI 6
DI 1
DI 2
DI 3
External ramp
AI5
“down“ (0 - 10 V)
External ramp
AI2
“up“ (0 - 10 V)
Voltage input
(±10 V) AI4
Current input
(4 - 20 mA) AI6
1
4/10
RE 30126/09.07
Block circuit diagram
RE 30126/09.07
VT-VRPD-2
Hydraulics Bosch Rexroth AG
5/10
Technical data (for applications outside these parameters, please consult us!)
Valve amplifier VT-VRPD-2-2X/V0/0-0-1
Operating voltage
Operating range
Upper limit value
Lower limit value
Current consumption
Fuse
Digital inputs
Digital outputs
Analog inputs
Voltage input AI4, AI2 and AI5
Range
Input resistance
Resolution
Non-linearity
Current input (AI6 only)
Range
Input resistance
Current loss
Resolution
Analog outputs
Voltage outputs AO1 and AO3
Output voltage
Load
Resolution
Residual ripple content
Ramp time
Valve output stage
Solenoid current per solenoid
Reference voltage
Residual ripple content
Oscillator frequency
Scan time for command value conditioning
Serial interface
Type of connection
Local bus, distance to most distant station
Card dimensions
Front panel dimensions
Height
Width soldering side
Width component side
Permissible operating temperature range
Storage temperature range
Weight
UB 24 VDC + 40 % – 10 %
uB(t)max
uB(t)min
Imax
IS
Signal
35 V
21 V
1.5 A; stand-by current 270 mA
4 A slow-blowing
log 0 = 0 to 5 V
log 1 = 16 V to UB
Signal log 0 = 0 to 5 V
log 1 = UB – 3 V
Imax = 30 mA, short-circuit-proof
U ±10 V
Re 100 kΩ, > 10 MΩ for input AI2
5 mV for range ±10 V
2.5 mV for range 0...10 V
< 10 mV
I 4...20 mA
Re 100 Ω
0.15 % (at 500 Ω between Pin b24 and 0 V)
I 5 µA
U ±10 V
RLmin 1 kΩ
U 1.25 mV (14 bit)
±15 mV (without noise)
s max. 300
Imax 2.5 A
U ±10 V, 30 mA, short-circuit-proof
< 20 mV
f 5.7 kHz
t 2 ms
RS 232 (front panel), D-Sub socket
64-pin multi-point connector, DIN 41612, form G
I max. 280 m cable length
Euro-card 100 x 160 mm, DIN 41494
3 HE (128.4 mm)
1 TE (5.08 mm)
7 TE
ϑ 0 to 50 °C
ϑ –20 to +70 °C
m 0.2 kg
Note:
For details regarding environment simulation testing in the fields of EMC (electromagnetic compatibility), climate and mechanical stress, see RE 30126-U (declaration on environmental compatibility).
6/10
Bosch Rexroth AG Hydraulics
VT-VRPD-2
RE 30126/09.07
Technical data (for applications outside these parameters, please consult us)
Valve 4WRE…-2X (not included in the scope of supply)
Solenoid
Current consumption per solenoid
Imax 2.5 A
Solenoid coil resistance
Cold value at 20 °C
R 2.7 Ω
Max. warm value
R 4.5 Ω
Electrical connection
Plug-in connection to DIN EN 175301-803
Type of protection to EN 60529
IP 65 with mating connector correctly mounted and locked
Position transducer
Carrier frequency
f 5 kHz
Coil resistance (at 20 °C):
Between connections 1 and 2
R 113 Ω
Between connections 3 and 4
R 101 Ω
Electrical connection
Plug-in connection to DIN 43650-BFZ-Pg9
Type of protection to EN 60529
IP 65 with mating connector correctly mounted and locked
RE 30126/09.07
VT-VRPD-2
Hydraulics Bosch Rexroth AG
Pin assignment of multi-point connector
Row d
Row b
Pin
Code
2
DI 1
4
6
Description
Pin
Code
Description
Binary 1
2
n. c.
n. c.
DI 2
Binary 2
4
n. c.
n. c.
DI 3
Binary 4
6
AI 2+
Ramp + (U)+
8
DI 4
Binary 8
8
AI 2–
Ramp + (U)–
10
DI 5
n. c.
10
n. c.
n. c.
12
DI 6
Command valid
12
n. c.
n. c.
14
DI 7
n. c.
14
AI 4+
Command value (U)+
16
DI 8
n. c.
16
AI 4–
Command value (U)–
18
DI 9
Enable
18
AI 5+
Ramp – (U)+
20
DO 1
Solenoid A active
20
AI 5–
Ramp – (U)–
22
OK
OK output
22
AI 6+
Command value (I)+
24
Data+
Local bus
24
AI 6–
Command value (I)–
26
DO 2
Solenoid B active
26
AO 3
Actual valve value ±10V
28
Data–
Local bus
28
AGND
Analog GND
30
AO 1
Valve command value
30
REF–
–10 V
32
AO 2
n. c.
32
REF+
+10 V
Row z
Row f
Pin
Code
Description
Pin
Code
Description
2
MA+
Solenoid A+
2
DO 7
n. c.
4
MA–
Solenoid A–
4
n. c.
n. c.
6
MB+
Solenoid B+
6
n. c.
n. c.
8
MB–
Solenoid B–
8
n. c.
n. c.
10
Shield
Shield
10
n. c.
n. c.
12
L 1O–
LVDT supply –, Pin 2
12
n. c.
n. c.
14
L 1I–
LVDT signal –, Pin 4
14
n. c.
n. c.
16
L 1I+
LVDT signal +, Pin 3
16
n. c.
n. c.
18
L 1O+
LVDT supply +, Pin 1
18
n. c.
n. c.
20
System
ground
System ground
20
n. c.
n. c.
22
n. c.
n. c.
22
DO 3
System deviation ≥ window
24
n. c.
n. c.
24
DO 4
Freely configurable
26
n. c.
n. c.
26
DO 5
Freely configurable
28
n. c.
n. c.
28
DO 6
Freely configurable
30
n. c.
n. c.
30
UB
Supply voltage
32
n. c.
n. c.
32
LO
Ground
7/10
8/10
Bosch Rexroth AG Hydraulics
VT-VRPD-2
RE 30126/09.07
Pin assignment of D-SUB socket
9
5
GND
Send data (RS 232)
Receive data (RS 232)
6
1
RS 232
Unit dimensions (dimensions in mm)
Rexroth
O1
I2
O2
I3
O3
I4
O4
I5
O5
I6
O6
I7
O7
122
I1
100
89
3HE (128,4)
OK
RS232
X1 X2
VRPD-2
8TE (40,3)
165
195,5
2
RE 30126/09.07
VT-VRPD-2
Hydraulics Bosch Rexroth AG
9/10
Engineering / maintenance notes / supplementary information
Product documentation for valve amplifier VT-VRPD-2-2X/V0/0-0-1
RE 30126
Technical data sheet (the present document)
RE 30126-B
Installation and operating instructions
RE 30126-01-B
Commissioning and operating instructions
RE 30126-U
Declaration on environmental compatibility
RE 30126-Z
Supplementary information for the replacement of VT-VRPD-2-1X by VT-VRPD-2-2X
–The amplifier card may only be plugged or withdrawn when disconnected from the power supply!
–Do not use plugs with free-wheeling diodes or LED indicator lamps for connecting the solenoids!
–Measurements on the card may only be taken using instruments Ri > 100 kΩ!
–Use relays with gold-plated contacts for passing on command values (small voltages, small currents)!
–Route command value cables separately and always shield them; connect shield to connection z10 on the card side and leave
the other end open (risk of earth loops)!
–For solenoid cables up to 50 m length, use cable type LiYCY 1.5 mm2. In the case of greater lengths, please consult us!
Recommendation:
Also shield solenoid cables!
–Use highly flexible Cu cables (min. 2.5 mm2) for connecting the system ground!
The system ground is an integral part of EMC protection of the valve amplifier. It is intended to discharge interference that is
transported via the data and supply cables. This is only possible, when the system ground itself does not inject interference into
the command value card.
–The distance to aerial lines, radio sources and radar equipment must be at least 1 m!
–Do not lay solenoid and signal cables near power cables!
–Due to the charging current of the smoothing capacitor on the card, back-up fuses must have slow-blowing characteristics!
–Caution:
Note:
When the differential input is used, both inputs must always be switched on or off simultaneously.
Electrical signals brought out via control electronics (e.g. signal “OK”) must not be used for switching safety-relevant machine functions!
(See also European standard “safety requirements for fluid power systems and components - hydraulics”,
EN 982)
10/10
Bosch Rexroth AG Hydraulics
VT-VRPD-2
RE 30126/09.07
Notes
Bosch Rexroth AG
Hydraulics
Zum Eisengießer 1
97816 Lohr am Main, Germany
Phone +49 (0) 93 52 / 18-0
Fax
+49 (0) 93 52 / 18-23 58
documentation@boschrexroth.de
www.boschrexroth.de
© This document, as well as the data, specifications and other information
set forth in it, are the exclusive property of Bosch Rexroth AG. It may not
be reproduced or given to third parties without its consent.
The data specified above only serve to describe the product. No statements concerning a certain condition or suitability for a certain application
can be derived from our information. The information given does not
release the user from the obligation of own judgment and verification. It
must be remembered that our products are subject to a natural process of
wear and aging.
RE 30126/09.07
VT-VRPD-2
Hydraulics Bosch Rexroth AG
11/10
Notes
Bosch Rexroth AG
Hydraulics
Zum Eisengießer 1
97816 Lohr am Main, Germany
Phone +49 (0) 93 52 / 18-0
Fax
+49 (0) 93 52 / 18-23 58
documentation@boschrexroth.de
www.boschrexroth.de
© This document, as well as the data, specifications and other information
set forth in it, are the exclusive property of Bosch Rexroth AG. It may not
be reproduced or given to third parties without its consent.
The data specified above only serve to describe the product. No statements concerning a certain condition or suitability for a certain application
can be derived from our information. The information given does not
release the user from the obligation of own judgment and verification. It
must be remembered that our products are subject to a natural process of
wear and aging.
12/10
Bosch Rexroth AG Hydraulics
VT-VRPD-2
RE 30126/09.07
Notes
Bosch Rexroth AG
Hydraulics
Zum Eisengießer 1
97816 Lohr am Main, Germany
Phone +49 (0) 93 52 / 18-0
Fax
+49 (0) 93 52 / 18-23 58
documentation@boschrexroth.de
www.boschrexroth.de
© This document, as well as the data, specifications and other information
set forth in it, are the exclusive property of Bosch Rexroth AG. It may not
be reproduced or given to third parties without its consent.
The data specified above only serve to describe the product. No statements concerning a certain condition or suitability for a certain application
can be derived from our information. The information given does not
release the user from the obligation of own judgment and verification. It
must be remembered that our products are subject to a natural process of
wear and aging.
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