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Fast Frequency Response is a control logic for Series 135 that responds to a Special Open ADR 2.0b signal.

It can operate in 3 modes:

1. Simple Level 2.0a & 2.0b – Traditional Pending-Moderate-High binary signal

2. Special Events 2.0b – Special Control Logics are passed from the VTN to the GRIDlink though a specific Event Signal

3. Locally  – The GRIDlink executes the Special Control Logic independant from the VTN using GRIDview

There are 8 Digital Outputs Available on the Series 135

  • Outputs 1-4 are dedicated and cannot be reconfigured.
  • Outputs 5-8 can be configured as required.
DO Term Reg.  Signal Config.
Pending 1 7 Y1 Simple/Level N
Moderate 2 37 Y2 Simple/Level N
High 3 8 Y3 Simple/Level N
VTN Connect 4 38 Y4 Status N
Relay 5 9 Y5 Special Y
Relay 6 39 Y6 Special Y
Relay 7 10 Y7 Special Y
Relay 8 40 Y8 Special Y

Modbus & BACnet Outputs

See this link …

Relay Group Membership

Relays 5-8 are configured in GRIDview to belong to 1 of the following:

Group

  0 – No membership (Default)

  UF 1 – Under Frequency (relay trips when frequency is below set point)

  UF 2 – Under Frequency (relay trips when frequency is below set point)

  OF 3 – Over Frequency (relay trips when frequency is above set point)

  OF 4 – Over Frequency (relay trips when frequency is above set point)

Group Set Points

Each Group may have a set point 0-100% of the Frequency PID Output Signal.

Group

  UF 1 – 0-100%

  UF 2 – 0-100%

  OF 3 – 0-100%

  OF 4 – 0-100%