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

Страница: 44 / 110

C30VR Compressor Installation, Operation, Maintenance and Troubleshooting
2.6.6 Signal timing charts
Figure 2-7 shows a timing chart for “Alternate operating mode” with two refrigerators.
Figure 2-8 shows a timing chart for “Momentary operating mode” with two refrigerators.
COMP START/STOP
CH1 REF
CH2 REF
COMP RUN
CH1 ACK
CH2 ACK
Figure 2-7
Timing chart for Alternate operating mode with two refrigerators
(*1)
COMP START
(*1)
COMP STOP
CH1 REF
CH2 REF
COMP RUN
CH1 ACK
CH2 ACK
*
1) The holding time is 0.3 seconds or more.
Figure 2-8
Timing chart for Momentary operating mode with two refrigerators
（
Delay and recovery of Answer-back signal
）
Please be sure to set the timeout time of an answerback signal as 8 seconds or more.
The reason is explained below.
In normal operation, an answer-back signal is fundamentally send to the equipment
side within a maximum of 0.3 seconds delay in response to a command signal. In
the following conditions, however, the answer-back signal is sent behind time:
(a) When the power supply of the compressor is turned ON
2-12 ULVAC CRYOGENICS INCORPORATED