Dynalco UM-600 Universal Monitor - Manual (Page 3)

2
System Overview
The Dynalco model UM-600 is a universal monitor capable of reading up to 6 input channels,
calculating differential values, providing alarm / shutdown outputs as well as allowing all
parameters to be logged to an internal flash memory. An RS-485 Modbus link for
communications to a DCS or PLC is also provided.
Basic operation:
The UM-600 will be in “stopped” mode until a run indication is sensed. This is selectable as
either a contact closure or magnetic pickup input. Once “running” mode is sensed, the UM-
600 will read all inputs at a rate of 100 msec per channel. If any input crosses either an over
or under threshold, the unit will invoke a flashing red LED on the front panel as well as an
output trip (solid-state relay) that can be used for alarm or shutdown. Any trips will also cause
the UM-600 to date / time stamp whenever a trip threshold is crossed. The monitor will log
the last (10) alarm events for each channel input. These may be viewed on the front display.
Data Logging:
The UM-600 also allows data logging of any monitored values where they will be saved to an
internal flash memory. Memory is sufficient to hold up to 500,000 data values with date / time
stamp. When the UM-600 receives an engine run signal (either contact closure or mag pickup
signal) the unit begins monitoring all enabled inputs. Following that, the monitor will begin
logging data as configured. The logged data is temporarily saved to RAM memory which
holds 56 logged values. The logged values remain in RAM until any of (3) events occur:
1) The RAM is full.
2) The monitor receives an engine stop signal.
3) The user initiates a “Stop Logging” command.
Following any of the above events, the data in RAM is transferred to the non-volatile flash
memory. These values can be downloaded at any time to a PC using Dynalco’s download
cable and Log Reader software.
IMPORTANT - Input Power Requirements:
It is important that the input supply power be a reliable source with battery backup if needed.
If input power is interrupted or disconnected while the monitor is logging data, any data that
has not yet been stored to flash memory may be lost. This manual contains information on
page 14 that describes the steps required to safely disconnect power without risk of losing
data.