Analog amplifier module

Analog amplifier module
Analog amplifier module
RE 30224/12.10
Replaces: –.–
1/6
Type VT-MSPA1-30, VT-MSPA1-150
Component series 1X
H6833_d
Table of contents
Contents
Features
Features
Page
1
Ordering code
2
Functional description
2
Block diagram
3
Terminal assignment / device view
3
Technical data
4
Output characteristic curve
5
Unit dimensions
5
Project planning / maintenance instructions /
additional information
6
– Suitable for controlling direct operated proportional pressure valves:
• DBE(M) 30-3X
• DRE(M) 30-4X
– Inverse-polarity protection of the operating voltage
– Differential input for command value voltage +10 V
– Ramp generator up and down can be set separately
– Zero point potentiometer
– 1 command value attenuator
– Characteristic curve generator
– Synchronized power output stage
– Output short-circuit-proof
– LED display:
• Ready for operation (green)
– Measuring sockets for:
• Pressure command value
• Actual current value
– Dither generator with fixed frequency
2/6
Bosch Rexroth AG Hydraulics
VT-MSPA1-30, VT-MSPA1-150 RE 30224/12.10
Ordering code
VT-MSPA1
1X V0
*
Analog amplifier module
For controlling the valves
DBE(M) 30-3X and DRE(M) 30-4X
For controlling the valves
DBE(M) 30-3X and DRE(M) 30-4X in
connection with hydraulic pumps
Further details in the plain text
Standard version
= 30
= 150
Component series 10 to 19
(10 to 19: Identical technical data and pinout)
= 1X
Functional description
Analog amplifier for controlling pressure valves without electric return. The modular design allows for simple top hat rail
assembly as is usual in control cabinets.
Clock generator: 12
Command value input: 4
Power output stage: 11-14
The module amplifier is controlled by means of a standard
command value signal 0 to +10 V. By means of the zero point
trimmer (Zw) (6), a zero point offset can be corrected.
Using the actuating variable coming from the characteristic
curve generator (10) and the clock frequency, the power output stage generates a PWM signal that is fed into the solenoid. The solenoid current is recorded and in the current controller (11) compared with the actuating variable and the difference is compensated.
Ramp generator: 5
In the ramp generator (5), the actuating variable rise is limited. Using the trimmer "t <" (7), the time for the increasing
command value signal is set and using trimmer "t >" (8), the
time for the decreasing command value voltage is set. The
adjustable time is contained in the technical data.
Characteristic curve generator: 10
Using the trimmer "Gw" (9), the rated current for the solenoid
is set. In the characteristic curve generator (10), the command value signal is changed so that a linear command value
current characteristic curve results.
In the clock generator (12), a fixed frequency for the output
stage is generated.
Fault recognition: 15
Monitors the solenoid lines with regard to cable break and
short circuit as well as overcurrent of the output stage. If there
is an error, the green Ready for operation display goes out.
Hydraulics Bosch Rexroth AG
RE 30224/12.10 VT-MSPA1-30, VT-MSPA1-150
3/6
Block diagram
+UB
24 V
1
4
14
1
11
P
3
DC
2
0V
T
13
DC
2
15
GND
6
Zw
3
t<
t>
F
10
Gw
U
Command value
+10 V 6
F
9
U
4
Power
I>
8
7
F
5
12
W
16
i
F
5
1
Fuse
7
Potentiometer ramp up
13 Schmitt trigger
2
Suppressor diode
8
Potentiometer ramp down
14 Output stage
3
Power supply
9
Potentiometer Imax
15 Fault recognition
4
Command value input
10 Characteristic curve generator
5
Ramp generator
11 Current controller
6
Potentiometer zero point
12 Clock generator
16 Measuring socket
F
On front side
Terminal assignment / device view
Terminal assignment
Terminal
Device view
"Gw"
Pressure command value
Rexroth
"Zw"
Zero point
VT-MSPA1-30
"t <"
Ramp time up
"t >"
Ramp time down
"w"
Pressure command value
"I"
Actual current
value
"⊥"
Measurement null
4 5 6
1
+UB
2
Ground
3
–Ucommand
4
Solenoid +
5
Solenoid –
6
+Ucommand
Gw
Zw
t<
t>
w I
1 2 3
Potentiometer:
Sockets:
4/6
Bosch Rexroth AG Hydraulics
VT-MSPA1-30, VT-MSPA1-150 RE 30224/12.10
Technical Data (For applications outside these parameters, please consult us!)
VT-MSPA1-30
Operating voltage
VT-MSPA1-150
24 VDC +40 % –10 %
UB
Operating range:
– Upper limit value
uB(t)max
– Lower limit value
uB(t)min
Power consumption
Pmax
Current consumption
Imax
Fuse
Is
35 V
21 V
< 25 VA
<1A
Electronic overload protection and SMD fuse (soldered in)
Inputs
– Command value (differential input)
0 to +10 V; Re = 100 kΩ
Ucommand
Outputs
– Bias current (factory setting)
IV
– Solenoid current / resistance
Imax
– Frequency
100 mA
200 mA
800 mA; R20 = 19.5 Ω
700 mA; R20 = 19.5 Ω
f
200 Hz
100 Hz ±10 %
I
100 mA…800 mA
200 mA…700 mA
±25 %
±25 %
60 ms…5 s
60 ms…5 s
Setting ranges
GW: Solenoid current
ZW: Zero point
t >:
t <:
Ramp
t
Measuring sockets
– Command value "w"
U
– Actual current value "I"
U
Type of connection
0 to 10 V
1 mV
1 mA solenoid current
6 screw terminals
Mounting type
Top hat rail TH 35-7.5 according to EN 60715
Protection class according to EN 60529
IP 20
Dimensions (W x H x D)
25 x 79 x 85.5 mm
Admissible operating temperature range
ϑ
0 to +50 °C
Storage temperature range
ϑ
–25 to +85 °C
Weight
m
0.15 kg
Important:
Information on the environment simulation testing for the
areas EMC (electromagnetic compatibility), climate and mechanical load see 30223-U (declaration on environmental compatibility).
Hydraulics Bosch Rexroth AG
RE 30224/12.10 VT-MSPA1-30, VT-MSPA1-150
Output characteristic curve
VT-MSPA1-30
VT-MSPA1-150
800
Output current in mA →
Output current in mA →
800
600
400
200
100
0
20
40
60
80
100
700
600
400
200
0
20
40
60
80
Command value in % →
Command value in % →
Unit dimensions (dimensions in mm)
4 5 6
Rexroth
VT-MSPA1-30
79
Gw
Zw
t<
t>
w I
1 2 3
85,5
25
100
5/6
6/6
Bosch Rexroth AG Hydraulics
VT-MSPA1-30, VT-MSPA1-150 RE 30224/12.10
Project planning / maintenance instructions / additional information
– The amplifier module may only be wired when de-energized!
– The distance to radios must be sufficient (>> 1 m)!
– Screen command value lines, do not lay them close to power cables, screen solenoid lines!
– Do not use free-wheeling diodes in the solenoid lines!
– With a strongly fluctuating operating voltage, it may in the individual case be necessary to use an external smoothing capacitor with a capacity of at least 2200 µF.
Recommendation: Capacitor module VT 11110 (see RE 30750); sufficient for up to 3 amplifier modules.
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 30224/12.10 VT-MSPA1-30, VT-MSPA1-150
Hydraulics Bosch Rexroth AG
7/6
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.
8/6
Bosch Rexroth AG Hydraulics
VT-MSPA1-30, VT-MSPA1-150 RE 30224/12.10
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.
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