Rice Lake 920i Memory Expansion Card - Manual

December 2010 69085
820i ™ and 920i ® Programmable HMI Indicator/Controllers
Memory Expansion Card Installation Instructions
PN 67600
Use the following procedure to install memory
expansion cards in
820i
and
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
920i
CPU board, or J6 on the 820i 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).
J6
Figure 1. Installing Option Card Onto 920i CPU Board
5. Make connections to the option card as
required. Use cable ties to secure loose cables
i n s i d e t h e e n c l o s u r e. On c e c ab l i n g i s
complete, position the backplate over the
enclosure and reinstall the backplate screws.
Use the torque pattern shown in Figure 2 to
prevent distorting the backplate gasket.
Torque screws to 15 in-lb (1.7 N-m).
6. Ensure no excess cable is left inside the
enclosure and tighten cord grips.
7. Reconnect power to the indicator.
The indicator automatically recognizes all installed
option cards when the unit is powered on. No
hardware-specific configuration is required to identify
the newly-installed card to the system.
1
3
5
14
17
16 12
9
8
7
10
11
18
15
4
2
6
13
T o r q u e b a c k p l a t e s c r e w s
t o 1 5 i n - l b ( 1 . 7 N - m )
Figure 2. 920i Enclosure Backplate
J1
1
6
Figure 3. Memory Expansion Card
NOTE: All database information stored on a memory card is
lost if the memory card battery fails.
Periodically check the battery voltage on installed
memory option cards. Batteries should be replaced
when the battery voltage falls to 2.2 VDC. Life
expectancy of the battery is ten years.
Risk of explosion if battery is replaced
with incorrect type. Dispose of batteries
per manufacturer instruction.
Specifications
1MB, non-volatile SRAM with supervisory write protection
3V high-density lithium battery
To be the best by every measure