Installation; Cleaning, Maintenance And Service Notes - Hohner HM210IT 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.

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.

uring normal operation no maintenance is necessary. In case of unexpected problems,

failures or malfunctions the device must be shipped for back to the manufacturer for

checking, adjustment and reparation (if necessary). Unauthorized opening and repairing

can have negative effects or failures to the protection-measures of the unit.

Rev. 1

HM210IT User's Manual

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