User guide

MAN-13262 R EV BA DIN R AIL A MPLIFIER , MWI-13262 U LTRA
2 S ETUP AND C ONFIGURATION
2.1 L OAD C ELL (T RANSDUCER ) T ERMINALS
Terminal Function Description Notes
EXC RET
Supply return for bridge
excitation
Zero voltage terminal for
LCH and RCH transducers
COMMON
+V EXC
Bridge excitation source for
LCH and RCH transducers
5.0 Volt or 10.0 Volt supply terminal, max. load 100 mA
-IN LCH
Load cell signal from LCH
transducer
Low going output from LCH
transducer
10K ohm line-to-line
+IN LCH
Load cell signal from LCH
transducer
High going output from LCH
transducer
-IN RCH
Load cell signal from RCH
transducer
LOW going output from RCH
transducer
10K ohm line-to-line
+IN RCH
Load cell signal from RCH
transducer
High going output from RCH
transducer
OPEN (N.C.) NO CONNECTION Make no connection
SHLD DRN
Cable shield
drain terminal
Cable Shield for LCH and RCH
transducer cables
Connect only at amplifier
Transducers (load cells) use strain gages which have limited insulation levels to ground (earth).
This requires that the COM terminals be connected to ground (earth) to prevent damage to the
transducers (load cells).
2.2 P OWER S UPPLY T ERMINALS
Output Terminal Function Description Notes
J2-1 24V RET Power Supply Power supply return
Must not exceed 50 volts
from P.E.
J2-2 +24 VDC Power Supply Positive supply source
+20 to +28 VDC
@ 160 mA max
A fuse with a rating of 0.38A must be used in the 24 VDC supply lead to limit potential
damage to the amplifier in the event of circuit malfunction.
2.3 O UTPUT T ERMINALS
Output Terminal Function Description Notes
J2-3 COMMON Output signal return
Common for +/- 10V and
+/-2V output
J2-4 +/- 10V OUT Voltage Output signal
Undamped bi-polar
tension signal
max. load 2 mA
J2-5 mA MTR RET mA meter signal
Used for current format meter
return
Current through 1 mA
meter returns here
J2-6 METER OUT Output signal
Damped bi-polar tension
signal
Switchable 2.0 V F.S.
or 1 mA F.S.
J2-7 4-20mA OUT
Current loop Output
signal
Undamped tension signal,
current loop source
Internal Loop supply
J2-8 4-20mA RET Output current signal
Current return for
4-20 mA loop
At -15 VDC with respect to
common
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