Table of Contents
Advertisement
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.
Digital Inputs and Programmable 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 5.1and Table 5.2 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
5.1 for pin-out information.
NOTE! +24V 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. The ESTOP
function shuts down and locks out the rectifiers, opens the LVD's, and shuts down the converters. When the ESTOP signal is
removed, LVD's close (if battery present) and converters restart. To restart the rectifiers; turn AC power to the rectifiers OFF,
wait 30 seconds or more (until the LEDs on the module extinguish), then turn AC power to the rectifiers ON.
The digital inputs can be programmed to provide an alarm when the signal is applied (HIGH) or removed (LOW). Refer to the ACU+
Instructions (UM1M820BNA) or 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.
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 5.4 for terminal locations and Table 5.2 for pin-out information.
NOTE! The relay assigned to "Critical Summary" alarm 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 the ACU+ Instructions (UM1M820BNA) or NCU Instructions (UM1M830BNA) for programming information.
Relay Ratings: Refer to the following.
a)
Steady State: 0.5 A @ 60V DC; 1.0 A @ 30V DC.
b)
Peak: 3 A @ 30V DC.
Proprietary and Confidential © 2023 Vertiv Group Corp.
Vertiv™ NetSure™ 710 Series +24 VDC Power System Quick Start Guide
23
Advertisement
Table of Contents
