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Statistics Menu
(Block 3D)
This menu is where all the drive’s stored
operating statistics are available. There are eight
different statistics available:
1. Starts - Logs and displays the total number of
starts the drive motor has made.
2. Reversals - Logs and displays the total
number of times the motor started in a
direction opposite to the previous start.
3. Stalls - Logs and displays the total number of
stalled conditions the drive has experienced.
For the drive to register a stall, the DCM-2
board must be unable to balance the drive
position against the Demand input signal for
a period exceeding the Stall Time set in the
General Setup menu.
4. OverTorques - Logs and displays the total
number of times that excessive torque was
detected at the output shaft.
5. Pk Torque - Logs and displays the maximum
torque sensed at the output shaft.
6. TotRunTm - Logs and displays the total run
time of the drive motor in seconds.
7. High temp - Logs and displays the highest
temperature in degrees Fahrenheit measured
by a temperature sensor resident on the
DCM-2 board.
8. Low temp - Logs and displays the lowest
temperature in degrees Fahrenheit measured
by a temperature sensor resident on the
DCM-2 board.
Manual Operation Menu
(Block 3E)
This menu is used to allow manual drive
operation with the HART
®
communicator.
There are three manual operation procedures
available:
1. Op mode (Block 4G) - This procedure allows
the user to select the operating mode of the
DCM-2. There are four possible choices:
“Follow”, “Hold”, “Stay” and “Stop”. The
“Follow” mode is the normal state of operation
and allows the DCM-2 to control the drive
operation by responding to the analog input
Demand signal when the drive Handswitch is
in the automatic position. The “Hold” mode
causes positioning according to the HART
Interface Demand Value. The “Stay" mode
causes the output shaft to remain stationary
and maintain its present position. Note that
in "Stay" mode, the Handwheel cannot be
freely turned. The "Stop" mode removes
power from the motor. Note that in "Stop"
mode the Handwheel can be freely turned.
All operating modes can be overridden by the
drive Handswitch.
2. Demand - This procedure sets the effective
Demand signal. If Op mode is set to "Hold",
entering a valid value (-5% to 105%) will
control the motor. If Op mode is set to
"Follow", the value will follow the Demand
analog signal (unless an alarm condition
exists).
3. Reset Stall - This procedure resets normal
drive operation after a stall condition has
caused the drive to shut down. Selecting this
option and following the prompts will restore
operation. Note that stall conditions can
also be reset by simply reversing the input
Demand signal or cycling the drive ac power.
DCM-2 HART INTERFACE Communication