Operation Manual 37107F
MFR 3 - Multi Function Relay
Page 12/165
© Woodward
Functional Range
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The unit contains of the following features dependent upon the model:
Function
Option
Package
PSVX
+
Q
Common features
1
×
ready for operation relay
Standard
4(2) *
×
control relays (N.O. contact)
Standard
7
×
freely configurable relay outputs (N.O. contact)
Standard
2
×
three-position controller for n/f/V/P, power factor
Standard
2
×
three-position controller for n/f/V/P, power factor and 2 analog controller for n/f/V/P/Q and PWM outp.
Q
10(8) *
×
discrete control inputs *
Standard
12
×
discrete alarm inputs
Standard
7
×
analog inputs
1
×
analog input for mains real power (instead of current transducer)
2
×
analog outputs
Standard
1
×
kWh pulse output
Standard
1
×
kvarh pulse output
Standard
Password system
Standard
Configuration via PC and DPC cable possible (direct configuration)
Standard
CAN bus interface
Standard
Event recorder with real-time clock
Language manager for message texts
Standard
Ignition speed relay function
Standard
Running hours counter
Standard
Maintenance call counter
Standard
Start counter
Standard
kWh- and kvarh counter
Standard
Protection functions
Over-/undervoltage protection (2step), generator
V
gen
>/< Standard
Over-/undervoltage protection (1step), mains
V
mains
>/< Standard
Over-/underfrequency protection f>/<
Standard
Voltage asymmetry protection
V
as
> Standard
d
ϕ
/dt phase/vector jump protection
d
ϕ
/dt
Standard
df/dt protection
df/dt Standard
Reverse/reduced power protection
+/-P
Gen
< Standard
Overload protection
P
Gen
> Standard
Unbalanced load protection
Δ
P>
Standard
Reactive power protection (loss of excitation)
Q<
Standard
Time-overcurrent protection
I
time
>/>> Standard
Inverse time-overcurrent protection, IEC 255
I
inv-time
> Standard
Voltage restraint time-overcurrent protection
I
Vtime
> Standard
Ground fault protection
I
earth
> Standard
Battery monitoring
V
Bat
< Standard
* the lower number of control relays or inputs applies for units with one circuit breaker