Rice Lake 920i Programmable HMI Indicator/Controller - Digital I/O Expansion Card - Manual

July 2002 69087
920i ™ Programmable Indicator
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 power before removing
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
r e q u i r e d . F i g u r e 2 s h ow s c o n n e c t i o n s
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).
Figure 2. Digital I/O Expansion Card
Warning
Caution
J6
Pin Signal Pin Signal
1 DIO24 27 DIO11
3 DIO23 29 DIO10
5 DIO22 31 DIO9
7 DIO21 33 DIO8
9 DIO20 35 DIO7
11 DIO19 37 DIO6
13 DIO18 39 DIO5
15 DIO17 41 DIO4
17 DIO16 43 DIO3
19 DIO15 45 DIO2
21 DIO14 47 DIO1
23 DIO13 49 +5V
25 DIO12 even pins GND
Table 3. J2 Ribbon Cable Connections
GND
J3
DIO 1 DIO 3 DIO 4
+5V +5V
DIO 5 DIO 6 DIO 7 DIO 8
GND
DIO 2
1
50
J2
J1
1 12
49
2