ABB RELION 670 Series Technical Manual page 839

Generator protection

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1MRK 502 066-UUS B

The blocking states for position indications and commands are intended to provide the possibility

for the user to make common blockings for the functions configured within a complete bay.

The blocking facilities provided by the bay control function are the following:

Blocking of position indications, BL_UPD. This input will block all inputs related to apparatus

positions for all configured functions within the bay.

Blocking of commands, BL_CMD. This input will block all commands for all configured

functions within the bay.

Blocking of function, BLOCK. If the BLOCK signal is set, it means that the function is active,

but no outputs are generated, no reporting, control commands are rejected and functional

and configuration data is visible.

The switching of the Local/Remote switch requires at least system operator level. The password

will be requested at an attempt to operate if authority levels have been defined in the IED.

Otherwise the default authority level, SuperUser, can handle the control without LogOn. The users

and passwords are defined with the IED Users tool in PCM600.

Local/Remote switch LOCREM, LOCREMCTRL

The signals from the local HMI or from an external local/remote switch are connected via the

function blocks LOCREM and LOCREMCTRL to the Bay control QCBAY function block. The

coming from the local HMI or from an external hardware switch connected via binary inputs.

Function block

IEC05000360 V2 EN-US

Figure 433: LOCREM function block

IEC05000361 V2 EN-US

Figure 434: LOCREMCTRL function block

Technical manual

ControlMode in function block LOCREM is set to choose if the switch signals are

IEC05000360-2-en.vsd

IEC05000361-2-en.vsd

M13446-50 v4

IP16319-1 v2

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