Cleveland Motion Controls Classic Series DIN Rail Amplifier Non-Isolated MWI-13466 REV CA - Manual (Page 13)

MAN-13466 R EV CA C LASSIC S ERIES N ON -I SOLATED A MPLIFIER
P AGE 13 OF 26
2.9 M ETER V OLTAGE /C URRENT C ONFIGURATION
The damped output for a tension indicator can be configured as either a +/- 2V output or a +/- 1mA output by
changing the position of jumper-switch J1 located on the Output Card (Refer to Figure 4 for location). Voltage
output is selected by setting J2 (1-2). Current output is selected when J2 (2-3 ). Note that different wiring terminals
are employed for the signal return when configured for current or voltage.
2.10 M ETER O UTPUT D AMPING S ELECT
The amount of damping for the meter output (intended to drive a tension indicator) can be configured by the position
of jumper-switch J2 on the Output card (refer to Figure 4 for location information). Setting the jumper switch to J2
(1-2) sets the break frequency at 0.3 Hz. Setting the jumper switch to J2 (2-3), the break frequency setting is raised
to 3.7 Hz
2.11 W IRING
Most start-up problems are the result of mis-wiring or failure to reference the detailed information in this manual.
While a convenient basic wiring diagram can be found printed on the side label of the amplifier case, the diagram is
intended only as a helpful guide when checking field wiring. Additional information details can be found in the
subsequent sections of this manual and should be referenced before actual installation begins.
2.11.1 W IRING TERMINATION
Terminal(s) Conductor Size Insulation Strip Length Torque Notes
All
1.5mm 2 /16 AWG
0.75mm 2 /18 AWG
0.5mm 2 /20 AWG
7 mm ( 0.28” )
7 mm ( 0.28” )
7 mm ( 0.28” ) 0.5 Nm / 4.4 lb.-in.
0.5 Nm / 4.4 lb.-in.
0.5 Nm / 4.4 lb.-in. One wire this size per terminal
Up to two wires this size per terminal
Up to two wires this size per terminal
2.11.2 T RANSDUCER W IRING
8
7
6
3
4
5
2
1
1
2
3
6
5
4
8
7
WHT
BLK
BLK
RED
WHT
C
B
A
B
T
XDCR 1
T
C
RED A
C
C
XDCR 2
Figure 5 Pair of Half-bridge Transducers Wiring
The successful amplification of low level signals from strain gage transducers requires particular attention to wiring
practices to avoid signal degradation in the industrial environment. Degradation can result from AC noise pickup
and/or DC errors. Refer to the following guidelines to identify measures that may help retain signal quality:
•
Use shielded transducer cables to reduce pickup of noise through electrostatic coupling.
•
Route cables away from sources of electrical interference (motor wiring, contactors, etc).
•
Connect the shield drain wire at one end only to discourage shield currents .
•
Optimum high frequency grounding requires low inductance connections that are enhanced with short
conductors or planar ground conductors (wide ground braids).