Rice Lake 920i Installation Instructions

™
920i
Programmable HMI Indicator/Controller
Digital I/O Expansion Card Installation Instructions
PN 67601
Use the following procedure to install digital I/O
expansion cards in 920i indicators:
1. Disconnect indicator from power source.
Disconnect
indicator backplate.
2. Place indicator face-down on an antistatic
work mat. Remove screws that hold the
backplate to the enclosure body.
Use a wrist strap to ground yourself and
protect components from electrostatic
discharge (ESD) when working inside the
indicator enclosure.
3. Carefully align the large option card
connector with connector J5 or J6 on the CPU
board. Press down to seat the option card in
the CPU board connector.
4. Use the screws and lockwashers provided in
the option kit to secure the other end of the
option card to the threaded standoffs on the
CPU board (see Figure 1).
Figure 1. Installing Option Card Onto CPU Board
5. Make connections to the option card as
required. Figure 2 shows connections
available on connector J3 (up to eight digital
I/O channels). Connector J2 provides all 24
channels using a 50-pin ribbon cable (see
Table 3).
Use cable ties to secure loose cables inside the
enclosure.Once cabling is complete, position
the backplate over the enclosure and reinstall
the backplate screws. Use the torque pattern
shown in Figure 4 to prevent distorting the
backplate gasket. Torque screws to 15 in-lb
(1.7 N-m).
January 2005
power before removing
J6
J2
49
50
1
J3
Figure 2. Digital I/O Expansion Card
Pin Signal
1 DIO24
3 DIO23
5 DIO22
7 DIO21
9 DIO20
11 DIO19
13 DIO18
15 DIO17
17 DIO16
19 DIO15
21 DIO14
23 DIO13
25 DIO12
Table 3. J2 Ribbon Cable Connections
J1
1
2
12
Pin Signal
27 DIO11
29 DIO10
31 DIO9
33 DIO8
35 DIO7
37 DIO6
39 DIO5
41 DIO4
43 DIO3
45 DIO2
47 DIO1
49 +5V
even pins GND
69087