6. If necessary, set parameters Relay #1 Mode to Relay #4 Mode and SysOK
Relay Mode to their initial mode.
4.2.7 Verifying the Standard TDM Signal (If Used)
This procedure requires a Hydran 201Ci-C Controller.
4.2.8 Verifying the Analog Input(s) (If Used)
The procedure described below should be performed for each optional 4–20 mA
analog output interface installed on the right side of the electronic card cage. Each
analog output terminal block has four terminals.
1. Configure the analog inputs before verifying them. See Section 4.4.7.
2. Connect a 4–20 mA calibrator-simulator (for example: Model CL-303-2 from
Omega) to terminals 2 (-) and 3 (+) of the analog input terminal block to verify.
For technical details on the terminal block, see Section D-2.
3. Access Setup > I/O Setup > An. Input Setup and select the analog input
interface to verify. In the screen that is now displayed, proceed as follows:
• Set the calibrator to 4 mA.
– IO State should display 0.0 ± 0.1 %.
– The line below IO State should display the minimum reading value
(defined during the configuration).
• Set the calibrator to 20 mA.
– IO State should display 100.0 ± 0.1 %.
– The line below IO State should display the maximum reading value
(defined during the configuration).
• Set the calibrator to 12 mA.
– IO State should display 50.0 ± 0.1 %.
– The line below IO State should display the middle reading value.
4. Disconnect the digital multimeter.
Note: If the input reading does not correspond to one of the above values,
calibrate this analog input.
4.2.9 Verifying the Analog Output(s) (If Used)
The procedure described below should be performed for each optional 4–20 mA
analog output interface installed on the right side of the electronic card cage. Each
analog output terminal block has four terminals.
1. Configure the analog outputs before verifying them. See Section 4.4.8.
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