Datasheet

10
1 .If RC P-200 0 units is res tarted, the p arameters of Bus voltage and PSU current you ha ve se t will return t o the i nitial/d efaul t
◎To co nfigure a RCP-200 0 powe r management sys tem, the JK1 ports on the rear of each rack units must be connec ted to gether
◎Only a single RKP-CMU1 unit is allow ed to be use d in a RCP-2 000 p ower management system.
◎Do not use the "RKP-1U ON/OFF" function in the RCP-2000 power management system, because this will inte rfere in RKP-CMU1/
◎Beca use of component t oleran ce, th ere is a poss ibility that some of units c onnec ted in parallel will reach an overcurre nt limit
◎Conn ect ra c k un i ts i n p a ra lle l befor e linki ng to t he loa d. Do not co nn ect rack u nits to the lo ad se parate ly. Refer to Fi gure
◎Use twisted wires for the wiring of + S and S. The twisted wire s sho uld no t touch the lo ad wires to avoid i nterfe rence. Refer
◎A too long cable length m ight induce a higher amount o f noise that a ffects rack u nits' p roper operation in parallel. To reduce
then overlo ading the o ther un its wh en op erating at ful l load condit ion. If overlo ad conditions hap pen in parallel usage, it i s
sugg ested that d erate t he total outp ut current by 10%. For ex ample: RCP-2000 -24 9 conn ected in para llel (in 3 rack s), the×
total outpu t current sho uld be chang ed to 80A 9 unit 0.9=6 48A.× ×
owing to the face that a ll control and parameter signals of the RKP-CMU1 are integrated into JK1.
RKP-1U-C MU1's prope r oper ation.
3-2 a nd Figure 3- 3.
to Fi gure 3 -2 and Figure 3-3.
the noise, i nstalli ng terminatio n resi stors, an accessor y, to the unused JK1 ports is rec omme nded.
2.If PM Bus is offline such as RKP-CM U1 shu tdown , the parame ters o f remo te ON /OFF control, Bus voltag e, and PSU c urrent
3.Using the RKP-CMU1 to reduce PSU current will just limi t outpu t current of RCP-2000 units and will not trigger their over-curren t
4.If PSU curre nt you set is higher than the au to de-rating value of the r ack PSU when ope rating at a lo w AC input voltage , it wil l
values, whereas if RCP-2000 units is connected with a RKP-CMU1 unit, t he res tarted RCP-2 000s will be loaded the previou s
set parameters b y the R KP-CMU1 a utoma tically.
you have set will return to the initial/default values.
alarm. Take RCP-2000-48 as an example, the over-current pro tection threshold is 47A when operating at 230Vac. If you set PSU
trigger the de-rated over-current protection. Take RCP-2 000-48 as an example, the over-current protection threshold de creases
by 25%, from 47A to 35.25A, when operat ing at 100Vac. If yo u set P SU cu rrent t o 40A, it will trigger over- curren t alarm due to
the l ower o ver-current protection thresho ld (35.25A).
current to 40A, then the maximum output current will be 40A. It is less than 47A, so its over-current alarm will not be tri ggered .
3.8 Not es on PMBus Monitoring
3.9 Parallel O peration
◎Internal paral lel ope ration of a ra ck unit is on ly suit able fo r the identical RC P-200 0 units , namely units with the s ame
◎Under parallel operation, please refer to the user's m anual of RCP-2000/RKP-1U for notice of ope ration and connections
3.9.1 Pa rallel opera tion o f a sin gle unit of R KP-1U-CMU1
◎RKP-1U -CMU1 is equippe d with the cir cuit fo r connecting RCP-2000 units in para llel. Just inse rt RC P-200 0 units into
the rack, then units to be c onnec ted in parall el is do ne.
output voltage and c urren t rating .
of the rest of the functions .
◎Control parameters
Table 3-9
Ad justable range
00h (OFF) / 80h( ON)
30 ~ 112A
24 ~ 89.6A
12.6 ~ 47 A
12V 12V
-1.5 ~ 2 V
24V 24V
-3 ~ 4 V
48V 48V
-6 ~ 8 V
To leranc e Defau lt
N/A
N/A
N/A
N/A
80h(ON)
±5A
±4A
±2A
89.6A
47A
±5%
±5%
±5%
0V
0V
0V
112A
PMBus com mand
OPERATION
VOUT_COMMAND
VOUT_TRIM
IOUT_O C_FAULT_LIMIT
Model
AL L
12 V
12 V
12 V
24 V
24 V
24 V
48 V
48 V
48 V
◎P aralle l opera tion o f ra ck units i s only suitab le for the id entica l RCP -2000 units, name ly unit s with the sa me ou tput
◎RJ45 ca bles ( CAT.5e, 8P8 C) mu st be u sed to conn ect the JK1 p or ts o f each rack units. The re commended maxi mum
v oltage and current rating . Up to three rack units in cludin g a RKP-1U-CMU1 an d two RK P-1Us (eight RCP- 2000 units)
can be conne cted in parallel, as Figure 3-2 shows.
length i s 1m. But if there is a need for e xtending the cables, the maximum len gth sh ould n ot exceed 2m .
3. 9.2 Parallel operation of RKP -1U-CMU1 a nd RKP-1U