Rice Lake Condec UMC600 - Manual (Page 9)

6 UMC600 Installation Manual
2.7 Instrumentation Setup
All indicators are configured and tested prior to
shipment to ensure that they are fully functional. The
unit can be turned on immediately after connecting the
input power and the load cells.
The UMC600 operates with the EPROM program
KDA1921-1(27C512). To verify the program installed
in the indicator, turn on the indicator and observe the
displayed value at the EP prompt (see Figure 2-4). The
EP prompt displays the family, set, and version level of
the installed EPROM.
Figure 2-4. EPROM Display
To ensure that the UMC600 is in proper operating
condition, the indicator can be tested with a load cell
simulator. The input signal should be as close as
possible to the normal system millivolt value.
Figure
2-5 shows the simulator-to-indicator wiring
connection in a six-wire configuration. See Section 2.9
for more information.
Note: Six-wire configuration requires that the +SEN
lead be shorted to +EXC and the –SEN lead be shorted
to –EXC at the simulator only.
Figure 2-5. Wiring Connection to Simulator
Exceeding rated load cell load or
shorting excitation wires may
damage power supply.
Notes:
• Test weights should be used to verify scale
performance.
• The tilt stand should be secured with 1/4-20 inch
screws. The location should be selected to offer some
degree of protection for the indicator and its
associated hardware.
• Unprotected cable runs need to be installed in a
method to protect the cable from damage.
• All wiring must conform to the National Electrical
Code and RP 12.6.
2.8 Load Cell Wiring
All units are equipped with a six-wire load cell
connector. The UMC600 is supplied with a six-pin
connector that needs to be attached to the existing load
cell cable by the installer.
Figure 2-6 shows the load cell output connector and the
location of J1 on the back of the indicator. Table 2-1
shows load cell connector pin assignments.
Figure 2-6. J1 Load Cell Connector - facing
EP–1.15
EPROM Set 1 Version 15
LOAD CELL
SIMULATOR
TO J1
CONNECTOR
UMC600
+SIG
–SIG
+EXC
–EXC
–SEN
+SEN
–EXC
+EXC
+SIG
–SIG
!
Caution
Pin Function
A +EXCITATION
B –EXCITATION
C +SIGNAL
D –SIGNAL
E +SENSE
F –SENSE
Table 2-1. Load Cell Connector Pin Assignments
A
B
C
D
E
F
J1
Load Cell
Connector
TB3 & 5
REAR VIEW
TB1 POWER TB2 & 4