Tvba Specifications - GE Mark VIeS System Manual

8.5.3 TVBA Specifications

Number of channels supporting position or gap inputs
Number of channels supporting velocity or dynamic pressure sensor inputs
Number of channels supporting Key Phasor inputs
Sensors Supported
Number of negative 24 V dc, N24 outputs to power sensors
N24 Nominal Voltage
N24 maximum current
Number of buffered outputs
Buffer Gain Accuracy
DB9 and DB25 Connector Output Load requirements to achieve less than 10% overshoot
BNC Connector Load requirements to achieve less than 10% overshoot
8.5.4 Diagnostics
The TVBA terminal board provides weak pull-up and pull-down circuits configured based on the jumper position to allow the
YVIB to detect an open circuit. The I/O pack creates the diagnostic alarm (fault) if any one of the inputs has an out-of-range
voltage.
Each connector between the TVBA and the I/O pack has its own ID device that is interrogated by the Vibration pack. The ID
device is a read-only chip coded with the terminal board serial number, board type, revision number, and the R, S and T
connector location. When this chip is read by the I/O pack and a mismatch is encountered, a hardware incompatibility fault is
created.
YVIB Vibration Monitor Modules
Signal Name
Connector
PCOM
BPR11
PCOM
BPR12
PCOM
BPR13
PCOM
BPR14
PCOM
Requirement
Input Options
Sensor Power Options
Buffered Outputs
Terminal Screws
Wiring Sizes
Torque
Public Information
Pin #
JC1 6
JC1 11
JC1 10
JC1 23
JC1 24
JD1 1
JD1 3
JD1 5
JD1 9
Limits
13
8
2
1) Eddy-current or Proximitor
2) Accelerometer with integrated output
3) Seismic
4) Velomitor
5) Charge Amplifier
14
-24.5 V dc
(-23 to -26) V dc
12 mA
14
+/-0.1%
1500 ohms minimum
1000 pF maximum
2 Mohm minimum
1000 pF maximum
22 to 12 AWG
9.6 in-lb (1.085 N-m)
GEH-6855_Vol_II System Guide 283