Woodward MFR300-15M 8444-1064

MFR 300 Series (housing)

1 CAN bus interface connector

2 RS-485 interface connector

3 Voltage PT terminal

4 Current CT terminal

5 Relay outputs terminal

6 Service port connector (USB/RS-232)

MFR 300 Series MFR 300

11M 15M 71M 75M

MFR 300-[x]1M

Measuring voltage

[1] = 120 Vac [7] = 690 Vac

MFR 300-1[x]M

Current voltage

[1] = ../1 A [5] = ../5 A [1] = ../1 A [5] = ../5 A

MFR 300-11[x]

Mounting

[M] = DIN rail mounting

Options

In addition to the above shown device standard versions (╚═▷ “Versions”) are the

following MFR 300 Series options available:

•MFR 300-75M/K28 •

•MFR 300-75M/SU03 •

The MFR 300 Series option devices use the same hardware than the standard devices.

The software functions are slightly modified to add special features. Please refer to the

following chapters for details:

•╚═▷ “9.2.1 MFR 300 Profibus/CAN Coupler (Option K28)” •

•╚═▷ “9.2.2 MFR 300 CAN Protocol (Option SU03)

Scope of delivery

The following parts are included in the scope of delivery. Please check prior to the

installation that all parts are present.

Fig. 3: Scope of delivery – schematic

A MFR 300 multifunction relay

B printed QR Code sticker – 2

Configuration

Parameter Numbers

All parameters are assigned a unique parameter identification number.

The parameter identification number may be used to reference individual parameters

listed in this manual.

Homepage

General notes

The ToolKit “Homepage” gives an overview of all measured values, the state of the relays

and the state of the monitoring.

The “Homepage” is only used to display values. The values cannot be adjusted here. The

configuration of the parameters is done in the other menu sections on the left hand side.

The following chapters describe all menus in detail

Configuration

4.2.1 Measurement

General notes

The setpoints for specific parameters will differ depending upon the hardware version,

indicated on the data plate.

• [1] MFR 300-x1x = Current transformer with ../1 A rated current •

• [5] MFR 300-x5x = Current transformer with ../5 A rated curren

The AC power triangle illustrates the dependencies between active power, apparent

power, reactive power and power factor.

•PF = P/S = cos Φ •

•Q = √(S2-P2) •

•S = √(P2+Q2) •

•P = S * PF

Undervoltage (Level 1 & 2) ANSI# 27

General notes

Voltage is monitored according to how the parameter “Voltage measuring”

(parameter ╚═▷ 1851) is configured. This controller provides the user with two alarm

levels for undervoltage. Both alarms are definite time alarms.

Monitoring for undervoltage faults is performed in two steps.

The diagram listed below shows a frequency trend and the associated pickup times and

length of the alarms