Ulvac C30MVER, Инструкции по установке, эксплуатации, техническому обслуживанию и устранению неисправностей

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Section 2 Considerations before Installation
Do not switch between ON and OFF frequently. Switching between ON and OFF should
be less than 6 times per hour, and each status should be maintained for longer than 3
minutes. Frequent startup and shutdown may shorten insulation life of coldhead motor,
resulting in system failure.
When the refrigerator needs to be turned On and Off for controlling the temperature of our
Super Trap, use our temperature controller.
CAUTION
COM
Each input “COM” line works as a return line of a corresponding control signal. It is
recommended to twist the signal line and the “COM” line together.
Also, output signal wires mentioned below should be twisted as a paired signal.
(e.g., CH1 ACK1 - CH1 ACK2)
COMP RUN
（
Compressor answer-back
）
This is an answer-back signal responding to the compressor pump operation command.
When the compressor starts operation, the answer-back signal is sent to the equipment.
Note: Refer to “Section 2.6.6 Signal timing charts –Answer-back signal delay” as well.
ALARM
（
Alarm
）
When this signal is OFF, the compressor is ready for operation, or in operation. When
failure or malfunction occurs to the compressor, the signal turns ON, in other words, the
contact output closes and the signal is conducted. To reset the alarm, push the “RST”
button on the front panel of the compressor. However, the failure or malfunction should
be cleared before the manual reset.
Note: When the compressor is turned OFF, ALARM signal turns ON for about two
seconds. It also turns ON for about 0.5 seconds at the start of applying current.
CH1 ACK, CH2 ACK, CH3 ACK
（ Refrigerators No.1-3 answer-back ）
These signals are required for C30MVR only.
They are Answer-back output signals responding to each refrigerator command (CH*
REF).
When the refrigerators start operation, these answer-back signals will be sent to the
equipment.
ULVAC CRYOGENICS INCORPORATED 2-11