Cryomech PT415, Инструкция по установке, эксплуатации и текущему обслуживанию

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Specifications
5-13
less than 30 volts(Min3mA) and close the selected input pin to the return of that supply.
(An isolated 24 volt supply and return is provided on pins 11 and 10 of this connector
respectively.)
The minimum pulse width (high or low) for an input signal to be recognized is 200ms. It is
possible for a signal to be recognized sooner, but due to the asynchronous nature of the
design, a 200ms pulse width is necessary to guarantee the signal is recognized.
Maximum input voltage without damage to the hardware is ±30V, indefinite time.
Minimum guaranteed "TRUE" voltage is +12VDC.
Negative voltages are considered FALSE.
Input "impedance" is about 3.3K Ohm.
Inputs are ESD protected.
Outputs
Four standard outputs are provided. They are relay closures which indicate that the
compressor motor is running, the helium temperature or pressure has exceeded set limits
or that no errors or warnings have been detected.
All outputs are contact closures (rated at 2amps 24 VDC).
Isolated voltage supply
Pin 11 is an isolated (1000VDC) +24VDC source referenced to pin 10, 24V_RET. The
maximum current available is 40mA.
This supply can be used to power the inputs for interfacing the input system to a contact-
closure type system. This supply may also be used for other purposes provided the
current limit is not exceeded.
Input pin descriptions
Pin 15, RMT_ON: Issues START compressor command on RISING edge.
Pin 14, RMT_OFF: Issues STOP compressor command on RISING edge.
Pin 13, RMT_INTERLOCK: Disables operation of compressor when TRUE. Level
sensitive.
Pin 12, RMT_SLVL: While TRUE, changes the behavior of RMT_ON (pin 15) to level
sensitive, and RMT_OFF to inactive.
Output pin descriptions
Pins 7 and 8: Contact closed when all sensed parameter are within limits. Contact is
open when operational error in compressor package is detected or warnings appear. Also
open when line power is not on or either circuit breaker is off. All error type indications
are latched and must be reset by front panel button or a start compressor request.
Warnings are self-clearing if and when condition ceases to exist.
Pins 1 and 2: Contact closed while compressor module is running. Open otherwise.
Pins 5 and 6: Contacts closed when high helium temperature error condition is latched.
Contacts open when the helium temperature drops to a certain level AND a compressor
START or STOP event is issued. See Section 7 for temperature set points.
Pins 3 and 4: Contacts closed when high helium pressure error condition is latched.
Contacts open when the helium pressure drops to a certain level AND a compressor
START or STOP event is issued. See Section 7 for helium pressure set points.