Ib2 (Controller Interface Board) Connections (If Required) - Vertiv NetSure 7100 Installation Manual

5.4.3 IB2 (Controller Interface Board) Connections (if required)

The IB2 (Controller Interface Board) provides connection points for digital inputs, programmable relay outputs, and temperature
probes. The IB2 interface board is mounted inside the distribution cabinet. Refer to Figure 5.2.
Programmable Digital Inputs and Relay Outputs
Digital input and relay output leads are connected to screw-type terminal blocks located on the IB2. Recommended torque for these
connections is 2.2 in-lbs. Refer to Figure 5.4 for terminal locations. Refer to Table 5.4 and Table 5.5 for pin-out information.
Digital Inputs
Connect up to eight (8) digital inputs to the IB2. Note that you must supply both paths for the digital input (either a positive or
negative signal and the opposite polarity return path). Observe proper polarity. Refer to Figure 5.4 for terminal locations and Table
5.4 for pin-out information.
The digital inputs can be programmed to provide an alarm when the signal is applied (HIGH) or removed (LOW). Refer to the NCU
Instructions (UM1M830BNA) for programming information.
Digital Input Ratings: Refer to the following.
a) Maximum Voltage Rating: 60V DC.
b) Active High: > 19V DC.
c) Active Low: < 1V DC.
The digital inputs may be preprogrammed for specific functions. Refer to the configuration drawing (C-drawing) supplied with your
system for your system's specific configuration.
ESTOP Function
NOTE!
-48V is factory wired to the Digital Input #8 (-) terminal for your convenience and function predefined for ESTOP.
Customer-furnished system ground applied to terminal Digital Input #8 (+) activates the ESTOP function.
If an ESTOP switch is wired to the IB2, customer-furnished system ground applied to terminal DI8+ activates the ESTOP function.
The ESTOP function shuts down and locks out the rectifiers and opens the low voltage battery disconnect contactor (if furnished). If
the system has battery connected and does not contain a low voltage battery disconnect contactor or the controller power option is
set to Battery Pwr (jumper J4 on the system interface board is set to Battery Pwr), the controller will remain operational. If the system
has battery connected and does not contain a low voltage battery disconnect contactor, the loads will be sustained by the battery
voltage.
When the ESTOP signal is removed, the low voltage battery disconnect contactor (if furnished) remains open. Rectifiers remain off.
The rectifiers restart when input power is removed and restored after 30 seconds or more (until the LEDs on the modules extinguish).
When the rectifiers restart, the low voltage battery disconnect contactor closes (if furnished).
NOTE!
If a customer-furnished method to disconnect the input power to the system is not provided, the rectifiers will stay
locked OFF until the input power is recycled. If the ESTOP signal is removed without recycling the input power, the rectifiers
will remain off and have a local alarm visible on the module. The ESTOP alarm from the controller will extinguish. The
controller will not issue an alarm for this condition.
Vertiv™ NetSure™ 7100 -48 VDC Power System Installation Manual
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