PT/CT
The PT/CT menu accesses the Power Meter and Sag/Swell module setup
registers that are used for basic setup:
Setup
Register Function
Volts Mode The power system’s configuration – WYE, DELTA, Single, etc
PT Prim The Potential Transformer’s primary winding rating for V1, V2 and V3
PT Sec The Potential Transformer’s secondary winding rating for V1, V2 and V3
CT Prim The Current Transformer’s primary winding rating for I1, I2 and I3
CT Sec The Current Transformer’s secondary winding rating for I1, I2 and I3
I4 CT Prim The Current Transformer’s primary winding rating for I4
I4 CT Sec The Current Transformer’s secondary winding rating for I4
Nom Volts T h e n ominal power system voltage (used for power quality calculations)
Phase Lbls The phase label format assigned to the outputs (ABC, RST, XYZ, RYB, RWB
or 123)
Serial COM
The Serial COM menu accesses the Communications modules that control
the 9700 Power Meter’s serial ports (Comm 1, and Comm 2/Comm 3 on the
optional XPRESS CARD).
Setup Register Function
Comm Mode Sets the Comm 1 serial port’s co mmu n ications mode (RS-232 or RS-485)
Baud Rate * Sets the communications speed, in bits/second) for the serial port
Unit ID * Sets the 9700 Power Meter’s Unit ID — a unique Unit ID is required for
each device
Protocol * Sets the communications protocol for the serial port.
* These setup registers are available for each installed serial port. The MGT displays CM1,
CM2 or CM 3 to indicate communications ports 1, 2 or 3.