Rice Lake 880 Performance Series Indicator/Controller Technical/Service Manual - Manual (Page 28)

22 880 Technical/Service Manual
2.11 Digital I/O
Digital inputs can be set to provide many indicator functions, including all keypad functions except MENU. Digital
inputs are active (on) with low voltage (0 VDC), inactive (off) at 5 VDC. Use the DIGIO menu to configure the
digital inputs.
Digital outputs are typically used to control relays that drive other equipment. Outputs are designed to sink, rather
than source, switching current. Each output is a normally open collector circuit, capable of sinking 24 mA when
active. Digital outputs are active when low or at 0 VDC, with reference to the 5 VDC supply.
Use the DIO menu to set the function of the DIO pins to OUTPUT, then use the SETPTS menu to configure the
digital outputs.
Table 2-4 shows the pin assignments for connector J2.
Table 2-4. J2 Pin Assignments (Digital I/O)
Connector Pin Signal
J2 1 5VDC, 500mA max
2 GND
3 DIO1
4 DIO2
5 DIO3
6 DIO4
2.12 Legal for Trade Sealing
An optional sealing kit (PN 153660) is available for Legal for Trade units.
Load Cell Locking Clip (PN 158402)
6-32 x 1/4 inch
Fillister Head Screw
(PN 158207)
Sealing Wire
Not included
Figure 2-16. Sealing Components
1. Remove the left bottom screw from the backplate as shown in Figure 2-17.
2. Slide the load cell sealing clip over the load cell connector.
Load Cell Locking Clip
Figure 2-17. Remove Existing Screws
3. Secure with one of the fillister head screws provided in the kit.