Emerson Fisher FLOBOSS 407 Instruction Manual page 90

FloBoss 407 Instruction Manual
3.5.8 Pulse Input Source and Isolated Modules
Equipment Required:
For both types of modules, there are two methods of testing. One method tests high-speed operation,
and the other method tests low-speed operation.
When checking the operation of the Pulse Input Source and Isolated modules,
ensure the scan rate for the pulse input is once every 6.5 seconds or less as set by the
ROCLINK software.
To verify high-speed operation, connect a pulse generator having sufficient output to drive the module
to terminals B and C. Connect a frequency counter across terminals B and C. Set the pulse generator
to a value equal to, or less than 10 KHz, and set the frequency counter to count pulses. Verify the count
read by the counter and the count read by the ROC/FloBoss are the same using the ROCLINK software.
To verify low-speed operation of the source module, alternately jumper across terminals B and C. The
module LED should cycle on and off, and the accumulated count should increase.
To verify low-speed operation of the isolated module, alternately supply and remove an input voltage
across terminals B and C. The module LED should cycle on and off, and the total accumulated count
should increase.
3.5.9 Slow Pulse Input Source Module
Equipment Required:
To verify low-speed operation of the source module, connect and remove a jumper across terminals B
and C several times to simulate slow switching. The module LED should cycle on and off and the
accumulated count should increase.
3-34
Pulse Generator
Voltage Generator
Frequency Counter
Jumper wire
NOTE
Jumper wire
Rev 5/00