M
Buffer Amplifier
G123-815
Description
The Moog Buffer Amplifier interfaces between standard PLC
analogue input and output modules, on one side, and a
position transducer and a Moog valve, on the other.
It simplifies the use of a PLC in closing position loops.
The filter and valve current selector switches can have more than
one of each selected, so the selected values are summed. For
example, selecting 50 and 30 mA together will give a full scale
output of 80 mA.
The Buffer Amplifier solves the common problem of the ±10V
PLC output being incompatible with the valve drive
requirements.
The position transducer signal is filtered by the Buffer Amplifier,
before being passed through to the PLC analogue input module.
This ensures transducer and external noise
cannot upset the closed loop.
Digital noise from the PLC ± 10V output is filtered with a switch
selectable first order filter and converted to two switch selectable
outputs. The first is ± 10V and the second is a switch selectable
current output of ± 5mA to ±100 mA. This allows for most Moog
electrical feedback (efb) and mechanical feedback (mfb) valves.
The Buffer Amplifier is housed in a compact DIN rail mounting
enclosure and requires a 24 V supply. Front panel test points and
valve drive LEDs facilitate commissioning and trouble shooting.
Features
Compact, DIN rail mounting
Outputs to suit most Moog
valves
Transducer (probe), valve and
0V test points
Vv and Iv LED valve drive
indicators
Switch selections sum for filter
and valve current
Transducer (probe) signal filter
+24V supply
Switch selectable voltage or
current output
Switch selectable valve drive
filter
Switch selectable current
output
CE marked
Specifications
Valve drive input:
0 to ± 10V
Valve drive outputs:
0 to ± 10V
0 to ± 100mA max
Valve drive current
selections:
±5, 10, 20, 30 & 50 mA
Valve filter corner
frequency selections:
7, 16, 34, 72 & 723 Hz
±10%
±10V min
Probe filter corner
frequency:
154Hz ±10%
Current signal output
headroom:
Class of protection:
IP 20
Valve drive test point:
Zo = 10K
Supply:
Probe test point:
Zo =10K
24 V nominal, 22 to 28 V
50 mA @ 24 V, no load
Vv LED:
Maximum illumination at
± 10V
+ = red
– = green
Mounting:
DIN rail
Temperature:
0 to 40°C
Dimensions:
100W x 108H x 22.5D
Maximum illumination at
±5 mA \ ±100mA
+ = red
– = green
Weight:
120g
CE mark:
EN50081.1 emission
EN50082.2 immunity
C tick:
AS4251.1 emission
Iv LED:
Filter type:
Passive, single pole
Operating Details
24V DC
SUPPLY
+24V
1
OV
2
+15V
TP
0V
-15V
Voltage Amplifier
Power Supply
Valve Command Filter
LED
0.22mS (723Hz)
Vv
TP
valve
2.2mS (72Hz)
4.7mS (34Hz)
10mS (16Hz)
+24V
Filter
select
switches
Current Amplifier
5mA
V
10
9
Output
select
VALVE
14
10mA
22mS (7Hz)
20mA
100K
VALVE
COMMAND
PLC
0V REF
PROBE
100K
3
8
30mA
Output current
select switches
50mA
1K
Lo Rin
switch
4
TP
probe
LED
+24V
16
Iv
Probe Filter
11
PROBE
1mS (160Hz)
12
Ordering Information
Buffer Amplifier G123-815A001
Special configurations can be provided.
Consult your Moog sales office to discuss details.
Internet Data
For detailed Application Notes and the latest version of this
Data Sheet please refer to the Moog website
www.moog.com/dinmodules
Industrial Controls Division. Moog Inc., East Aurora, NY 14052-0018. Telephone: 716/652-3000. Fax: 716/655-1803. Toll Free 1-800-272-MOOG.
Moog GmbH. Germany. Telephone: 07031-622-0. Fax: 07031-622-100.
Moog Sarl. France. Telephone: 01 45 60 70 00. Fax: 01 45 60 70 01.
Moog Australia Pty. Ltd. Telephone: 03 9561 6044. Fax: 03 9562 0246.
Moog pursues a policy of continuous development and reserves the right to alter designs and specifications without prior notice. Information contained herein is for guidance only and does not form part of a contract.
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G123-815US 11.03
M