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JC-IO USERS MANUAL EM-9044-B
1.3 Precautions
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CONFORMITY WITH EU DIRECTIVES
• The equipment must be mounted inside the instrument panel of a metal enclosure.
• The actual installation environments such as panel configurations, connected devices, connected wires, may
affect the protection level of this unit when it is integrated in a panel system. The user may have to review the
CE requirements in regard to the whole system and employ additional protective measures to ensure the CE
conformity.
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GENERAL PRECAUTIONS
• Before you remove the unit or mount it, turn off the power supply for safety.
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ENVIRONMENT
• Indoor use.
• When heavy dust or metal particles are present in the air, install the unit inside proper housing with sufficient
ventilation.
• Do not install the unit where it is subjected to continuous vibration. Do not subject the unit to physical impact.
• Environmental temperature must be within -10 to +55°C (14 to 131°F) with relative humidity within 30 to 90%
RH in order to ensure adequate life span and operation.
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WIRING
• Do not install cables close to noise sources (relay drive cable, high frequency line, etc.).
• Do not bind these cables together with those in which noises are present. Do not install them in the same
duct.
• Twist the power cables 1 turn around the ferrite core at near the unit as shown below.
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CALENDAR CLOCK
• A backup battery is employed for calendar clock IC. Backup period without power supply is approx. 2 months.
• With power on, the battery is not drained. When power off period is for approx. 2 month, the battery cannot
backup the calendar clock data, and the calendar clock cannot keep correct date and time.
The battery is charged when the power is supplied.
• The battery is not replaceable by customer. When replacement is required, consult M-System.
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AND ....
• The unit is designed to function as soon as power is supplied, however, a warm up for 10 minutes is required
for satisfying complete performance described in the data sheet.