Harmonic Drive FHA-Cmini Series, Manual

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3-3 Installation location and installation
Installation
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3-3 Installation location and installation
Environment of installation location
The environmental conditions of the installation location for FHA-C mini series actuators must be as
follows. Determine an appropriate installation location by observing these conditions without fail.

Operating temperature: 0°C to 40°C
The temperature in the cabinet may be higher than the atmosphere depending on the power
loss of housed devices and size of the cabinet. Plan the cabinet size, cooling system, and
device locations so the ambient temperature of the actuator is kept 40°C or below.

Operating humidity: humidity 20 to 80%. Make sure without condensation.
Take note that condensation is likely to occur in a place where there is a large temperature
change between day and night or when the actuator is started/stopped frequently.

Vibration: 24.5 m/s
2
(2.5 G) (10 to 400 Hz) or less

Impact: 294 m/s
2
(30 G) or less

Free from dust, dirt, condensation, metal powder, corrosive gases, water, water droplets, oil mist,
etc.

Protection class: Standard products are structurally designed to meet the IP-44 requirements.
However, rotating and sliding areas (oil seal areas) and connectors are not IP-44-compliant.

Locate the driver indoors or within an enclosure, and do not expose it to sunlight.

Altitude: lower than 1,000 m above sea level
Installation
The FHA-C mini series actuator drives mechanical load system at high accuracy.
When installing the actuator, pay attention to precision and do not tap the actuator output part with a
hammer, etc. As an encoder is incorporated in the actuator, excessive impact may damage the
encoder.
Installation procedure
1
Align the axis of rotation of the actuator and the load mechanism precisely.

Perform this alignment carefully, especially when a rigid coupling is used.
Even slight misalignment may cause the permissible load of the actuator to be
exceeded, resulting in damage to the output shaft.

Do not apply shock or impact during installation.
Output shaft
Flange
The protection class against water entry is as follows:
4: Protected against water splashed from all directions
The protection class against contact and entry of
foreign matter is as follows:
4: Protected against large solid objects (up to 1mm)