2.5
SETUP: CONNECTIONS AND POWERUP
2
2.a TRANSDUCER CONNECTIONS: MODEL 3540
SHIELD
SHLD
–SIGNAL
+SIGNAL
–
+
EXCITATION
COM
SIG
SIG
–
SIG
+
FREQUENCY
SOURCE
SIGNAL INPUTS
SIGA
+
5V
–
COM
PWR
5V
+
SHIELD
SHLD
–SIGNAL
+SIGNAL
–
+
EXCITATION
COM
SIG
SIG
–
SIG
+
FREQUENCY
SOURCE
SIGNAL INPUTS
SIGA
+
5V
–
COM
PWR
5V
+
Fig. 8(b) Model 3540 Transducer
Cabling: Single-Ended (Grounded)
Frequency Input
SHLD
EXCITATION
COM
SIG
SIG
–
SIG
+
SIGNAL INPUTS
SIGA
+
5V
–
COM
PWR
5V
+
+SIGNAL
Fig. 8(e) Model 3540 Transducer
Cabling for Suppression of High-
Frequency Noise
SHLD
EXCITATION
COM
SIG
SIG
–
SIG
+
SIGNAL INPUTS
SIGA
+
5V
–
COM
PWR
5V
+
ZERO-VELOCITY SENSOR
+EXCITATION
+SIGNAL
–EXCITATION
SHIELD
10K
10K Pull-up Resistor (for
use with open-collector
sensor)
Fig. 8(c) Model 3540
Transducer Cabling:
Input from a Zero-
Velocity Sensor
Fig. 8(a) Model 3540 Transducer
Cabling: Differential (Floating)
Frequency Input
SHLD
EXCITATION
COM
SIG
SIG
–
SIG
+
SIGNAL INPUTS
SIGA
+
5V
–
COM
PWR
5V
+
+SIGNAL
Fig. 8(d) Model 3540 Transducer
Cabling for Elimination of DC Offset