Vertiv NetSure 731 A91, User Manual

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Appendix 1 Technical And Engineering Data 21
NetSure 731 A91 Subrack Power System User Manual
Parameter
category
Parameter Description
DC output
alarm and
protection
DC output
alarm and
protection
DC output over-voltage alarm
point
Default: -58.5 ± 0.3Vdc, configurable through controller
DC output over-voltage
recovery point
Default: -58 ± 0.2Vdc, 0.5Vdc lower than the over-voltage alarm point
DC output under-voltage
alarm point
Default: -45.0 ± 0.3Vdc, configurable through controller
DC output under-voltage
recovery point
Default: -45.5 ± 0.2Vdc, 0.5Vdc higher than the under-voltage alarm point
DC output over-voltage
protection point
Default: -58.5 ± 0.2Vdc, configurable through controller
LLVD Default: -44.0 ± 0.3Vdc, configurable through controller
BLVD Default: -43.2 ± 0.3Vdc, configurable through controller
Rectifier
Current sharing
The rectifiers can work in parallel and share the current. The unbalanceness is
better than ± 5%.
Derate by input (at 45°C)
176Vac input, The rectifier output is 100% power
85Vac~154Vac input, the rectifier adopts two-stage linear power limiting.
Below 80Vac
，
the rectifier low pressure power off.
Walk-in
The output voltage can rise slowly when the rectifier start up. The walk in time is
configurable through the controller.
Fan speed adjustable Rectifier fan speed can be set to auto or full speed.
Over-voltage protection
The rectifier provides over-voltage hardware and software protection. The
hardware protection point is 59.5V ± 0.5V, and it requires manual resetting to
restore operation. The software protection point is between 56V and 59V (0.5V
above output voltage, 58.5V by default), and can be set through the controller
There are two software protection modes, which can be selected through the
software at the host:
1. Lock out at the first over-voltage
Once the output voltage reaches protection point, the rectifier will shut off and hold
that state. It requires manual resetting to restore the operation
2. Lock out at the second over-voltage
When the output voltage reaches the software protection point, the rectifier will
shutdown, and restart automatically after 5 seconds. If the over-voltage happens
again within a set time (default: 5min. Configurable through controller), the rectifier
will shut off and hold that state. It requires manual resetting to restore the
operation
Manual resetting: Resetting can be done manually through the controller, or by
removing the rectifier from system
Temperature power limiting
The rectifiercan start in -40°C;
For R48 3000e3 moudle:
Below 45°C, the rectifier with full power (3000 W) output.
From 45°C ~55°C, the rectifier with linearly derating to 2900W.
From 55°C ~65°C, the rectifier with linearly derating to 2250W.
From 65°C ~70°C, the rectifier with linearly derating to 0W.
For R48 3500e3 moudle:
Below 45°C, the rectifier with full power (3500 W) output.
From 45°C ~55°C, the rectifier with linearly derating to 3380W.
From 55°C ~65°C, the rectifier with linearly derating to 2625W.
From 65°C ~70°C, the rectifier with linearly derating to 0W.
EMC
Conducted emission Class A EN300386
（
ClassB is met when configuring 3500e3 module and
M830B controller
）
Radiated emission
Harmonic current emission EN61000-3-12
Voltage fluctuation and flash EN61000-3-11
EFT Level 4 EN/IEC 61000-4-4
ESD Level 3 EN/IEC 61000-4-2
Surges Level 4 EN/IEC 61000-4-5
Radiation Level 3 EN/IEC 61000-4-3
Conduction Level 3 EN/IEC61000-4-6