TDK-Lambda Alpha 800 Mode D'emploi page 18

Alpha 800 Handbook
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Q modules can be used up to 25A in slots 1-6. In slot 7, this is 15A.
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R modules can be used up to 60A in any slot.
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S modules can be used up to 75A in slots 1/2, 76A in slots 2/3; 51A in slots 6/7 and up to 85A in all other slots. When the
psu is operated in a horizontal orientation (with the ratings label uppermost) the S modules may be used up to 85A in slots 2/3.
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T modules can be used up to 37A in slot 6 and 7 and used up to 60A in all other slots.
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U modules can be used up to 16A in all slots.
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W modules can be used up to 15A in all slots.
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Z modules can be used up to 15A in slot 7 and used up to 25A in all other slots.
Additional module limitations:
When using remote sense, the max output voltage will be reduced by 0.5V for L, S, T, Q and R modules, and
by 1.0V for C, D, F, G, J, M, K, N, U Modules.
Ampere turns for J module is calculated as AT=(output current + 15A) x 4.
Adjusting output voltage beyond the stated range may cause overvoltage protection (OVP) to operate, whereby all
outputs will turn off. To reset OVP, turn back output voltage adjustment and remove the mains supply for 30
seconds.
Input Connections:
Brand
Amp Red
Amp Blue
Output Connections:
Output Connector Ratings:
1. 6.35mm fastons are rated at 15A.
2. 9.5mm Faston terminals are rated at 32A (Tab thickness = 1.0mm, suitable Faston terminals are AMP
151667-2 or AMP 280223-2
3. M5 screw terminals are rated at 100A subject to the wire and wire connector used to connect them.
Maximum recommended torque setting for M5 screws is 2.4 - 2.6Nm.
Adjustment and Derating:
The Alpha 800 series is designed to provide a max output power of 1000W at nominal output voltages. The following
procedure must be used to ensure the PSU is operated within its ratings:
1. Calculate the user for power for each module (Volts x Amps).
2. Total power for slots 1-3 must be ≤720W. Total power for slots 4-7 must be ≤ 600W. Total power (slots 1-7)
not exceeding value stipulated in unit limitations table
3. Calculate user ampere turns (Amps x turns) for each module.
4. Add total ampere turns: Slots 1-3 ≤120. Slots 4-7 ≤120. Total of slots 1-7 ≤ 200AT
Mating input faston connectors
Colour Wire size (awg)
22 - 18
16 - 14
Page 18 of 28
Part number
2-520407-2 15A
3-520408-2 15A
17026 issue 20, April 2016
Current rating