Installation; Cleaning, Maintenance And Service Notes - Hohner IT 210 Operating Manual

Level converter, direction signal decoder and programmable pulse divider

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1.3 Installation

The device is only allowed to be installed and operated within the permissible

temperature range. Please ensure an adequate ventilation and avoid all direct

contact between the device and hot or aggressive gases and liquids.

Before installation or maintenance, the unit must be disconnected from all voltage-

sources. Further it must be ensured that no danger can arise by touching the

disconnected voltage-sources.

Devices which are supplied by AC-voltages, must be connected exclusively by

switches, respectively circuit-breakers with the low voltage network. The switch or

circuit-breaker must be placed as near as possible to the device and further indicated

as separator.

Incoming as well as outgoing wires and wires for extra low voltages (ELV) must be

separated from dangerous electrical cables (SELV circuits) by using a double resp.

increased isolation.

All selected wires and isolations must be conform to the provided voltage- and

temperature-ranges. Further all country- and application-specific standards, which

are relevant for structure, form and quality of the wires, must be ensured.

Indications about the permissible wire cross-sections for wiring are described in the

Technical Specifications (see chapter 8).

Before first start-up it must be ensured that all connections and wires are firmly

seated and secured in the screw terminals. All (inclusively unused) terminals must be

fastened by turning the relevant screws clockwise up to the stop.

Overvoltages at the connections must be limited to values in accordance to the

overvoltage category II.

For placement, wiring, environmental conditions as well as shielding and

earthing/grounding of the supply lines the general standards of industrial automation

industry and the specific shielding instructions of the manufacturer are valid. Please

find all respective hints and rules on www.hohner-elektrotechnik.de.

To clean the front of the unit please use only a slightly damp (not wet!), soft cloth.

For the rear no cleaning is necessary. For an unscheduled, individual cleaning of the

rear the maintenance staff or assembler is self-responsible.

It210_01a_oi_e.docx / Jan-20

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