Woodward MFR300-11M 8444-1071 8440-1089

MFR300-11M 8444-1071   8440-1089

Overfrequency (Level 1 & 2) ANSI# 81O

General notes

This controller provides the user with two alarm levels for overfrequency. Both alarms are

definite time alarms.

Monitoring for overfrequency faults is performed in two steps.

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

length of the alarms.

Underfrequency (Level 1 & 2) ANSI# 81U

General notes

This controller provides the user with two alarm levels for underfrequency. Both alarms

are definite time alarms.

Monitoring for underfrequency faults is performed in two steps

Positive Load (Level 1 & 2) ANSI# 32

General notes

The power is monitored depending on parameter “Voltage measuring” (parameter ╚═▷

1851) and parameter “Current measuring” (parameter ╚═▷ 1850)

If the single- or three-phase measured real power exceeds the configured limit, the alarm

will be issued.

Both alarm limits may either be positive or negative

ID Parameter CLSetting range

[Default]

Description

2304

2310

Limit 4-300.0 to 300.0

2304: [110.0 %]

2310: [120.0 %]

The percentage values that are to be

monitored for each threshold limit are defined

here.

If this value is reached or exceeded for at least

the delay time without interruption, the

specified relay will be energized.

Notes

This value refers to the “Rated active power”

(parameter ╚═▷ 1752).

2305

2311

Delay 4 0.02 to 300.00 s

2305: [11.00 s]

2311: [0.10 s]

If the monitored load exceeds the threshold

value for the delay time configured here, an

alarm will be issued.

Notes

If the monitored load falls below the threshold

(minus the hysteresis) before the delay expires

the time will be reset.

2301

2307

Relay 4 None / Relay 1 /

Relay 2 / Relay

3 / Relay 4

2301: [Relay 1]

2307: [Relay 2]

The relay configured here is activated if the

respective monitoring functions triggers. If

“None” is configured here, no relay is activated

in this case.

Notes

Whether the relay is energized or de-energized

depends on the configuration of the relay

function (parameter ╚═▷ 6920 , ╚═▷ 6921. ╚═▷

6922 and ╚═▷ 6923).

Negative Load (Level 1 & 2) ANSI# 32R/F

General notes

The power is monitored depending on parameter “Voltage measuring” (parameter ╚═▷

1851) and parameter “Current measuring” (parameter ╚═▷ 1850).

If the single- or three-phase measured real power is below the configured limit, the alarm

will be issued.

Both alarm limits may either be positive or negative