Vertiv NetSure 502NGFB Series, Руководство по установке

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| NetSure 502NGFB Installation Manual (Section 6009) | Rev. Z 31
48VDC is supplied to the alarm lead when the circuit breaker is in the OFF position. The positive side of Digital
Input #2 is factory-wired to battery return.
Programmable Relay Outputs
The IB2 provides eight (8) programmable alarm relays with dry Form-C contacts. Connect up to eight (8) relay
outputs to the IB2. Refer to
Figure 13 for connector locations and to Table 3 for pin-out information.
NOTE!
The relay assigned to the “Major Summary” alarm (SCU+) or “Critical Summary” alarm (NCU or
ACU+) (relay 1 by default) will operate in the “Fail Safe Mode”. “Fail Safe Mode” means Relay 1 is de-
energized during an alarm condition, opening the contacts between the C and NO terminals, and closing
the contacts between the C and NC terminals.
The remaining 7 relays energize during an alarm condition, closing the contacts between the C and NO
terminals, and opening the contacts between the C and NC terminals.
Refer to Table 3 if you are using the default relay assignments. A blank column in the table is also provided if
you want to document a custom configuration.
Refer to the Controller User Manual for programming information.
Relay Ratings: Refer to the following.
a) 1A Steady State @ 30V DC.
b) 3A Peak @ 30V DC.
The relays may be preprogrammed for specific functions. Refer to the configuration drawing (C-drawing)
supplied with your system for your system’s specific configuration.
Temperature Probes
Up to two (2) temperature probes can be connected to the IB2 Board. Either or both probes can be
programmed to monitor ambient temperature or battery temperature.
A temperature probe set as a battery probe can also be designated to be used for the battery charge
temperature compensation feature. If the system is equipped with the NCU or ACU+ Controller, the battery
charge temperature compensation feature can be programmed to use one probe or the average or highest
value of all probes programmed to monitor battery temperature. The battery charge temperature
compensation feature allows the controller to automatically increase or decrease the output voltage of the
system to maintain battery float current as battery temperature decreases or increases, respectively. Battery
life can be extended when an optimum charge voltage to the battery with respect to temperature is maintained.
If the system is equipped with the NCU or ACU+ Controller, a temperature probe set as a battery probe can
also be used for controlling against battery thermal runaway (BTRM feature).
Each Temperature Probe consists of two pieces. One piece is factory installed to the shelf and the other is
shipped loose. Locate and install the shipped loose piece to the piece factory installed in the shelf. A
temperature probe programmed to monitor battery temperature should be mounted on the top or side of a
battery cell to sense battery temperature. A temperature probe used for battery charge temperature
compensation or BTRM (Battery Thermal Runaway Management) should also be mounted on the top or side of
a battery cell. A temperature probe programmed to monitor ambient temperature should be mounted in a
convenient location, away from direct sources of heat or cold. To mount, peel the backing from the self-