American Magnetics 4Q12125PS-430 High Stability Integrated Power Supply System - Manual (Page 170)

152 Rev. 5
Appendix
Quench I/O Connector
a suitable cable to connect pins 5 and 6 on J2 of the 13x instrument to pins
6 and 7 of the 430 Programmer, Quench I/O connector.
Caution
The separate external segmented-rampdown option described below
ignores the Voltage Limit during the rampdown process.
Note
If the number of external-rampdown ramp segments is set to zero,
the modified rampdown is not used and the standard ramp rate
table will be effective during external rampdown. The Model 430
Programmer defaults to an empty rampdown table (number of
segments equal zero).
A separate segmented-ramp-rate table is available for external rampdown.
This option is accessible only via the external interface commands. See
section 4.5.5 on page 120.
A.6.3 External Quench Detection Output
The external quench detection output is a set of dry contacts (pins 1 and 2
of the Quench I/O connector) which close when the Model 430 Programmer
internal circuitry detects a quench condition. Note that the Model 430
Programmer internal quench detection must be enabled to assure that the
Model 430 Programmer will indicate a detected quench (see
section 3.10.2.13 on page 57).
The contacts remain shorted (when a quench has been detected) until the
RESET QUENCH SHIFT-key is used to clear the quench condition.