Woodward easYgen-2000 Series User Manual page 172

Configuration
Configure Monitoring > Breaker > Configure MCB
Fault at 'closing the MCB'
Fault at 'opening the MCB'
ID Parameter
2620 MCB moni‐
toring
2621 MCB Alarm
class
3419 MCB maximum
closing
attempts
3421 MCB open
monitoring
172
Alarm classes A & B
Parameter
n
If the MCB cannot be closed, the busbar remains without
voltage, until the MCB breaker fault is acknowledged.
The control continues attempting to close the MCB.
Parameter
n
eter
If the MCB cannot be closed, the busbar remains without
voltage, until the MCB breaker fault is acknowledged.
The control continues attempting to close the MCB.
Parameter
n
eter
If the MCB cannot be closed, an emergency power operation is
initiated (the engine is started and the GCB is closed; the
busbar is supplied by the generator).
If the alarm is acknowledged and if the MCB can be closed, the
load is switched to mains supply and the emergency power
operation terminates.
This alarm class has the following influence to the function of the
unit:
This fault is processed according to the action described within
n
the alarm classes. As long as the reply is present that the MCB
is still closed, the GCB cannot be closed.
CL Setting range Description
[Default]
2 [On] Monitoring of the MCB is carried out according to the following parameters.
Off Monitoring is disabled.
2 Class A/B/C/D/ Each limit may be assigned an independent alarm class that specifies what
E/F action should be taken when the limit is surpassed.
[B]
Notes
For additional information refer to
on page 587
2 1 to 10 The maximum number of breaker closing attempts is configured in this
parameter (relay output "Command: close MCB").
[5]
When the breaker reaches the configured number of attempts, an "MCB fail
to close" alarm is issued.
The counter for the closure attempts will be reset as soon as the "Reply MCB"
is de-energized for at least 5 seconds to signal a closed MCB.
2 0.10 to 5.00 s If the "Reply MCB" is not detected as energized once this timer expires, an
"MCB fail to open" alarm is issued.
[2.00 s]
This timer initiates as soon as the "open breaker" sequence begins. The
alarm configured in parameter
easYgen-2200/2500 | Genset Control
2802 Ä p. 245 "Emergency run" = Off;
2802 Ä p. 245 "Emergency run" = On, param‐
3408 Ä p. 245 "Emergency start with MCB failure" = Off;
2802 Ä p. 245 "Emergency run" = On, param‐
3408 Ä p. 245 "Emergency start with MCB failure" = On;
Ä Chapter 9.5.1 "Alarm Classes"
2621 Ä p. 172 is issued.
37535B