Ulvac C30PZ - DIP Switch Functions

Operation
4-6  ULVAC CRYOGENICS INCORPORATED 
4.4 Normal Operation .4 Normal Operation
1. Turn on the compressor unit. (Press COMP key when to operate in LOCAL mode.) 1. Turn on the compressor unit. (Press COMP key when to operate in LOCAL mode.)
2. Turn on the refrigerator. (Press COLD HEAD key when to operate in LOCAL mode.) 2. Turn on the refrigerator. (Press COLD HEAD key when to operate in LOCAL mode.)
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・Adjust the helium gas SUPPLY pressure not to exceed 2.1MPaG just after starting up. ・Adjust the helium gas SUPPLY pressure not to exceed 2.1MPaG just after starting up.
・Check the helium gas pressure during normal operation (after cooling down).・Check the helium gas pressure during normal operation (after cooling down).
(Refer to
Table 1-1.)
・When a flexible hose is over 15m, the helium gas pressure tends to be high. In this case,
open the gas charge valve very slowly and let a slight amount of helium gas out until the
helium pressure gauge reads allowable value.
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＊If the ALARM display indicates an alarm code during operations, refer to troubleshooting in
appendix A.
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4.5 DIP[dual-in-line] Switch Settings
Change of DIP switch settings is not necessarily for all users, however if it is needed
the procedure must be done before turning on the compressor unit. The switch is
located on the CPU BOARD inside the controller.
Table 4-4 DIP Switch Functions
Switch
Number
Contents Default OFF Function ON Function
１
The operation when LOCAL
mode is OFF.
OFF Stop operating Keep operating
２
The setting of parameter No.
35, 36, 37.
OFF Unmodifiable Modifiable
３
REMOTE signal method OFF
Pulse
(≧100ms)
Level
４ Undefined（needless to set）
OFF
− −
５ Undefined（needless to set）
OFF
− −
６ Undefined（needless to set）
OFF
− −
７
Communication timer OFF 3 seconds 10 seconds
８
Communication LF character OFF
Without line feed
(LF) character
With line feed (LF)
character
CAUTION