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DCR contents are modified as follows in order to incorporate the latest comments consistent with other similar DCRs and agreements made by the Manufacturer (REL STPI) and CNES.
The DCR attachment is changed to be 3602/014 draft 3C which includes all the changes in the final version of this DCR.
Note: This DCR now also implements the use of alternate publishing software for this specification (was: GlobalView; is now: WORD2010).
Item 3) Table 1(a), Figure 2
Delete item and replace with the following:
The description of package & terminals for all Variants is amended as follows:
• Variant 01: Vertical 4 Stud Mount (was: Relay with 4 mounting studs)
• Variant 04: Horizontal Flange Mount (was: Relay with side flange)
Item 4) Delete the 1st bullet item from this DCR: the addition of a rating for Overload Current Resistive for auxiliary contacts.
Item 14) Para 4.4.2
Delete item and replace with the following:
In Para 4.4.2, amend Main Contacts material and finish to be type H10 (was type O) and auxiliary contacts material to be type F3 (was H3).
In Para 4.4.2, amend Main contact studs nuts and washers requirement to read:
“Main contact terminal studs shall be equipped with stainless steel nuts and silver plated beryllium copper washers.”
(Ref. DCR809)
Item 17) Para 4.7.1 & Table 4
Delete item and replace with the following:
Miss Test is renamed ‘Run-in’ and Table 4 is used to specify Parameter Drift Values.
Miss Test Contact Resistance limit is deleted from Table 4 and replaced by Latch Voltage & Reset Voltage drift values.
Drift value limits are not specified at this time. Drift values are to be recorded for information purposes only in order to amass data so that suitable drift value limits can be specified at a later date (in a later revision).
Item 19) Delete item and replace with the following:
For Latch Voltage & Reset Voltage delete all minimum limits. Tests are performed at both high and low (-65C) temperatures.
Note 2 is deleted.
For Latch & Reset voltage, the maximum limit for UR=28V is amended to be 18V (was 19.8V).
Item 26) Table 6
Add the following note to this item and delete reference to +/-15% & +/-20%:
Note - Drift value limits are not specified in the table at this time. Drift values are to be recorded for information purposes only in order to amass data so that suitable drift value limits can be specified at a later date (in a later revision). Note 1 is added to clarify this position.
Item 28) Table 6
Delete item and replace with the following:
The following Contact Voltage Drop limits are amended or clarified:
• Overload: 5V (Main) & 1.4V (Aux) maximum during monitoring (clarification only; no actual change); 0.003 x ITEST (= 30mV Main) & 0.1 x ITEST (= 10mV Aux) (was 250mV & 300mV respectively) maximum during final measurements.
• Intermediate Current: 200mV (Main) & 300mV (Aux) maximum during monitoring (clarification only; no actual change); 0.003 x ITEST (= 30mV Main) & 0.1 x ITEST (= 10mV Aux) (was 250mV & 200mV respectively per DCR 157) maximum during final measurements.
• Operating Life Resistive (= Resistive Life): 5V (Main) & 2.8V (Aux) maximum during monitoring (clarification only; no actual change); 0.003 x ITEST (= 30mV Main) & 0.1 x ITEST (= 10mV Aux) (was 250mV & 200mV respectively) maximum during final measurements.
• Operating Life Low Level Load (= Low Level Life): 0.0025 x ITEST (= 25mV Main) & 0.1 x ITEST (= 10mV Aux) (was N/A & 100mV respectively) maximum during final measurements.
• Inductive Life: 5V (Main) maximum during monitoring (clarification only; no actual change); 0.003 x ITEST (= 30mV Main) & 0.05 x ITEST (= 5mV Aux) (was 250mV & N/A respectively) maximum during final measurements.
• Mechanical Life: 0.003 x ITEST (= 30mV Main) & 0.1 x ITEST (= 10mV Aux) (was 250 & 100mV respectively) maximum during final measurements.
New Item 30) Table 2 & Table 3
Contact Voltage Drop test current is clarified (=10A maximum (Main) & =100mA maximum (Aux) to be consistent with the generic spec). The VD max limit is specified as 0.0025 x ITEST & 0.05 x ITEST (based on 2.5mOhm (Main) & 50mOhm (Aux) values from Table 1(b) for contact resistance and the test current of 10A (Main) & 100mA (Aux) maximum).
Add New Item 31) Table 6
Amend the Voltage Proof minimum Voltage limit to be 500V (Aux contacts) or 1000V (all other points) (was up to 1250V per Table 2) for Operating Life Resistive (= Resistive Life)
Add New Item 32) Appendix A for REL STPI
Add Appendix to detail the following deviations:
• Deviations to Chart F4 High Level Sine Vibration & High Level Mechanical Shock tests which shall be not applicable for REL STPI (as requested by REL STPI due to the increased level in the Generic spec not yet having been fully assessed on non-QPL relays).
• Deviations to Chart F4: Coil Life subgroup test sequence (under Endurance Subgroup 1): Coil Life and the subsequent tests shall only be performed for Qualification. They are not required for Periodic Testing except in the case of any significant change to the design (as requested by REL STPI)
In the Justification section:
Item d) Delete item and replace with the following:
d) Implement drift measurement for Latch Voltage & Reset Voltage during Screening (over Run-in) and during Qualification and Periodic Testing on specific tests (see items 17 & 26 above). Limits have not been specified at this time due to lack of applicable performance data. Measurements will now be recorded for information purposes so that suitable drift value limits can be specified at a later date in a further revision of this specification.
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