YOKOGAWA av550g, User Manual

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< 5. Wiring >
5-11
IM 11M12D01-01E
5.2.9 Wiring for Individual/Common Error Contact Outputs and Functional Contact
Outputs
The averaging converter has the following contact outputs.
(1) Functional contact outputs (DO1 to DO4): User specified functions can be assigned.
(2) Common error contact output (DO5): Activated when any error occurs.
(3) Individual error contact outputs (DO-CH1 to DO-CH8): Channel-specific contacts.
One output is provided per channel.
For details on errors, refer to Section 12.1, “Displays and Remedies When Errors Occur.”
All contact outputs are Form C (transfer contact) and consist of 3 terminals of COM, NC, and NO. All
contacts are voltage free, dry contacts (mechanical relay contact outputs). The contact rating is 250 V
AC, 3A or 30 V DC, 3A.
The individual and common error contacts are set to normally energized and cannot be changed. The
“NC” and “NO” indications on the terminal show energized states. States of functional contact outputs
DO1 to DO4 are user selectable: normally energized or normally deenergized. The “NC” and “NO”
indications on the terminal show deenergized states.
Use cables that withstand temperatures of at least 80°C for the wiring for these outputs. There is
no need to use shielded cables. If a cable gland is not installed on the wiring hole of the averaging
converter, use a wire with an outside diameter of 17 mm or smaller. If installed, use a wire with an
outside diameter of 6 to 12 mm.
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Averaging Converter
Basic Power Unit
Expansion Power Unit
CH1
Error
CH2
Error
CH3
Error
CH4
Error
Annunciator, etc.
F5-13E.ai
Figure 5.13 Wiring for Individual/Common Error Contact Outputs and Functional Contact
Outputs