990XCP98000 SQUARE D, 990XCP98000 Datasheet - Page 39

• Manufacturer Part Number: 990XCP98000
• Description: QUANTUM CPU BATTERY FOR S
• Manufacturer: SQUARE D

Specifications of 990XCP98000

• Rohs Compliant: YES
• Battery Capacity: 1800mAh
• Battery Technology: Lithium
• Battery Voltage: 3V
• Battery Terminals: Connector
• Weight: 0.12lb

Presentation
(continued)
Modicon
automation platform
Safety I/O modules
The following 3 I/O modules are designed to create the safety loop in a Quantum
safety PLC solution:
140 SAI 940 00S
140 SDI 953 00S
140 SDO 953 00S
Each of these modules consists of two microprocessors executing the same
program, sharing the same information, and controlling one another from time
to time.
The table below shows the diagnostics run on I/O modules:
Measurement out of range
Wiring broken
Process power supply fault
Overload
(1) Detection of 4…20 mA range overshoot only.
Note: The short-circuit is not detected on discrete input modules.
In addition, the Quantum safety PLC provides communication diagnostics between
the safety CPU and the safety I/O modules, for example a CRC. The PLC therefore
tests that:
b
b
To manage disturbances such as EMC effects that can corrupt data temporarily,
it is possible to configure a maximum number of consecutive CRC errors for each
module (between 0 and 3).
On power-up, the safety I/O modules run an exhaustive self-test that lasts about 30
s. If these tests are negative, the modules determine there is a malfunction and do
not start. The inputs and outputs are set to 0. This self-test phase is signalled by the
LEDs flashing quickly on the front of the modules.
In addition, if the external 24 V c power supply is not connected to the discrete
I/O modules, the self-test is also negative, and the module does not start.
The I/O modules continuously supervise the voltages provided by the various
system power supplies (rack power supply and process power supply).
I/O operating principles
Safety I/O module diagnostics
Diagnostics
Diagnostics on power-up
Diagnostics on overvoltage and undervoltage conditions
The data received are the data that was sent.
The data are updated.
See the reference manual for Quantum discrete and analog I/O.
®
Quantum
Analog inputs
Yes
Yes (4-20 mA implicit) (1) –
–
–
8 analog inputs
16 x 24 V c discrete inputs
16 x 24 V c discrete outputs
™
Discrete
outputs
–
Yes
Yes
Discrete inputs
–
–
Yes
–
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