Rockwell Automation 1440-VAD02-01RA XM-123 Aeroderivative Module - Manual (Page 45)

Publication GMSI10-UM003D-EN-P - May 2010
37
Connecting a Velocity Sensor and Two Non-Contact Sensors
Figure 2.27 shows the wiring of a velocity sensor and two non-contact sensors
to the terminal base unit of the XM-123. The velocity sensor is wired to
channel 1. The first non-contact sensor is wired to channel 2, and the other
non-contact sensor is wired to the tachometer input signal.
Figure 2.27 Velocity Sensor and Two Non-Contact Sensor Wiring
ATTENTION
You may ground the cable shield at either end of the cable.
Do not ground the shield at both ends. Recommended
practice is to ground the cable shield at the terminal base
and not at the transducer. Any convenient Chassis terminal
may be used (see Terminal Block Assignments on page 18).
IMPORTANT
Transducer DC bias is monitored on all signals.
IMPORTANT
A jumper from terminal 22 to terminal 21 is required for
channel 2 buffered output. Refer to Configuring Buffered
Output Input Range on page 27.
TYPICAL WIRING FOR COIL-BASED VELOCITY SENSOR
AND TWO NON-CONTACT SENSORS TO XM-123 AERODERIVATIVE MODULE
Pin A - Common
Pin B - Signal
Cable shield not
connected at this end
Shield
0
16 Channel 1 Input Signal
Signal Common
SIG
-24
COM
SIG
-24
COM
17
1
Signal Common
Channel 2 Input Signal
21
22
-24V DC 20
-24V DC
4
Signal Common
Tach Input Signal
36
13
31
Shield
Shield
*
* Note: Jumpering terminal 22 to
terminal 21 configures
CH 2 buffer (-24V to 9V)
18