Rice Lake IQ plus 800 Installation & Operation Manual page 94

NOTE:
If the indicator is displaying the
TOTAL of all channels, and any
active scale on any channel goes
into an underrange or
overrange condition, the display
will blank out.
NOTE:
When installing dual-channel
modules, be sure to enter the
VZERO, VVAL, and VSPAN
values listed on Volts Calibra-
tion label (on module). Go to the
Calibrate-Volts submenu on the
IQ plus 800/810 to enter these
values. (Refer to Section 4,
Calibration, for more informa-
tion).
Figure 8-11. Dual-channel
module on main board
8-14 IQ plus 800/810 Installation Manual
It is important to note that channels are processing information, whether or
not those channels are displayed to the operator. Setpoint functions in Net
mode on channel 2, for instance, can be automatically running even though
the display may be showing Gross weight on channel 1.
Each channel has its own individual setup parameter for graduations, display
divisions, decimal point location, and units.
The hardware choices necessary to add multiple channels allow several
possible combinations of multiple channels. Either a single or a dual-channel
input module can be mounted on the main board and a dual-channel module
on the expansion board. Both modules plug into female connectors already
installed on the boards. The only external difference between the single-
channel and dual-channel module is the activation of the second J-10
terminal strip for wiring the second scale (see Figure 8-11). The second-
channel sense jumpers (JP3, JP4) only appear on the dual-channel modules.
The software choices under the SET ALG main menu allow the following
combinations:
• Single-channel module on main board (CHANS = 1)
• Dual-channel module on main board (CHANS = 1, 2)
• Single-channel module on main board and single-channel module on
expansion board (CHANS = 1, 3) NOTE: Single-channel modules on
expansion board will not be available after August, 1996.
• Single-channel module on main board, and dual-channel module on
expansion board (CHANS = 1, 3, 4) NOTE:Channel 2 is not operational
with this setup.
• Dual-channel on both main and expansion boards (CHANS = 1, 2, 3, 4)
Channel 1 LC Wiring
1 Sig+
2 Sig-
3 Sense+
4 Sense-
5 Shield
6 Exc+
7 Exc-
Channel 2 LC Wiring
1 Sig+
2 Sig-
3 Sense+
4 Sense-
5 Shield
6 Exc+
7 Exc-
J9 (Factory
SW1
Use Only)
(J7) Serial Comm.
U22
U24
(J4) Digital I/O Wiring
J5
Channel 1 LC Connector
1 2 3 4 5 6 7
Channel 2 LC Connector
1 2 3 4 5 6 7
Channel 1
Sense Jumpers
JP2
(Channel 1 LC Term)
J8
(Channel 2 LC Term)
DUAL CHANNEL
LOAD CELL
INPUT MODULE
J6
EPROM
Channel 2
Sense Jumpers
JP3 JP4
J2
J1