External Alarms; Starting And Stopping System Operation; Restarting Procedures When Rectifier Is Automatically Or Manually Inhibited, Shut Down, Or Locked Out - Vertiv NetSure 8200 Series User Manual

External Alarms

Relay outputs on the IB2 (NCU interface board) and EIB (NCU extended interface board) may be connected to
external customer alarm circuits. Refer to the system installation instructions (IM582140000) and the
configuration drawing (C-drawing) supplied with your power system documentation for your alarm relay
configurations.

Starting and Stopping System Operation

Rectifier Starting Procedure
Place the rectifier Operate / Standby switch to the I "Operate" position. See Figure 6 for location.
1.
Rectifier Stopping Procedure
1. Place the rectifier Operate / Standby switch to the "Standby" position. See Figure 6 for location.
Restarting Procedures when Rectifier is Automatically or Manually Inhibited, Shut Down,
or Locked Out
Rectifier High Voltage Shutdown Lockout
Procedure
1. Place the rectifier Operate / Standby switch to the "Standby" position, and then back to the I "Operate"
position.
Rectifier Emergency Shutdown and Fire Alarm Disconnect (ESTOP)
NOTE!
NCU ESTOP Function: If an ESTOP switch is wired to the NCU IB2 interface board, customer-
furnished system ground applied to terminal DI8+ activates the ESTOP function. The ESTOP function
shuts down and locks out the rectifiers. To restart the rectifiers; refer to the following procedure.
Procedure
1. Remove the emergency shutdown and fire alarm disconnect signal, and on each rectifier place the
rectifier Operate / Standby switch to the "Standby" position and then back to the I "Operate" position.
Vertiv | NetSure™ 8200 Series -48 VDC Power System User Manual (UM582140000) | Rev. A 31