raise pulse command in the Signal Matrix in PCM600 and monitoring a positivefrom this output.4. After the issue of the raise command, return the applied voltage to VSet (nominalvalue).5. Raise the voltage 1% above the upper deadband limit V2 and wait for the issue ofa lower command from the voltage control after the expiry of a constant orinverse time delay set by t1. Detection of this command will involve locating theallocated binary output for a low pulse command in the Signal Matrix in PCM600and monitoring a positive from this output.6. Return the applied voltage to VSet.13.10.3.4 Check the undervoltage block function SEMOD175185-578 v51. Confirm the setting for Vblock, nominally at 80% of rated voltage.2. Confirm the voltage control function response to an applied voltage belowVblock, by reviewing the setting in the local HMI under Main menu/Settings/General settings/Control/TransformerVoltageControl(ATCC,90)/TR1ATCC:x/TR8ATCC:x/UVBk that may cause an alarm, total or automaticblock of the voltage control function to be displayed on the local HMI.3. Apply a voltage slightly below Vblock and confirm the response of the voltagecontrol function.13.10.3.5 Check the upper and lower busbar voltage limit SEMOD175185-588 v51. Confirm the settings for Vmin and Vmax in the local HMI under Main menu/Settings/Setting group N/Control/TransformerVoltageControl(ATCC,90)/TR1ATCC:x/TR8ATCC:x/Voltage/Umax or Umin and Main menu/Settings/IED Settings/Control/TR8ATCC (90)/TR8ATCC:n/Voltage/Umax2. Confirm the voltage control function response to an applied voltage below Vminand above Vmax, by reviewing the settings in the local HMI under Main menu/Settings/General settings/Control/TransformerVoltageControl(ATCC,90)/TR1ATCC:x/TR8ATCC:x/UVPartBk and Main menu/General Settings/Control/TransformerVoltageControl/TR1ATCC:x/TR8ATCC:x/OVPartBk.These conditions may cause an alarm or total block of the voltage controlfunction to be displayed on the local HMI.3. Decrease the injected voltage slightly below the Vmin value and check for thecorresponding blocking or alarm condition on the local HMI. For an alarmcondition, the voltage regulation function is not blocked and a raise commandshould be issued from the IED.4. Increase the applied voltage slightly above the Vmax value and check for thecorresponding blocking or alarm condition on the local HMI. For an alarmSection 13 1MRK 502 073-UUS ATesting functionality by secondary injection262 Generator protection REG670 2.2 ANSI and Injection equipment REX060, REX061, REX062Commissioning manual
