CTI 062-00108, Installation And Operation Manual

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8
C T I 2552 Installation and O peration G uide
CAUTION:
HANDLING STATIC SENSITIVE DEVICES
The components on the 2552 module printed circuit card can be damaged by static electricity
discharge. To prevent this damage, the module is shipped in a special anti-static bag. Take the
following precautions before removing the module from the bag, when opening the module, and
when handling the printed circuit card during configuration.
Discharge any static potential by holding the module in its anti-static bag and touch the metal
chassis of the PLC. During the configuration step, hold the printed circuit card only by its
edges. Do not touch the circuit card pin connectors, or solder connections.
NOTE:
As shipped, all input channels are configured 100 Ohm platinum, 3 wire RTDs, degrees
Celsius and digital filtering enabled for temperature measurements.
After discharging any static build-up, remove the module from the static bag. Do not discard the static
bag. You will need it for the following configuration procedure.
2.4 Configuring the Module
The Model 2552 must be configured for 100 Ohm platinum or 120 Ohm nickel RTDs (2, 3 or 4 wire)
or millivolt range and digital filtering/no filtering mode before wiring the input connectors and inserting
the module into the I/O base.
Changing the module input channel configuration involves the following steps:
1. Selecting temperature or millivolt measurement
2. Selecting 3 or 4 wire compensation
3. Selecting 100 Ohm platinum or 120 Ohm nickel RTD input mode for each channel
4. Selecting digital filtering or no filtering for the module
5. Logging the configuration jumper settings for future reference
Each of these steps is described in the following sections.
2.4.1 Select Temperature or Millivolt Input
Locate DIP switch 2 (Temperature/Millivolt Switches in Figures 7 and 8) on the 2552 card and for