Woodward SPM-D2-10B/PSY5-FU-D 8440-2170

Product number: 8440-2170

Manufacturer product number: 8440-2170

Description: Woodward: SPM-D2-10B-PSY5-FU-D, 1ph, 400V, 24Vdc, Switchable Parameter

Predecessor: 8440-1871; 8440-1869

Dead Bus Start (Asynchronous Add-On)

Output of an add-on order for the power circuit breaker (“CB close”) without synchronization, if the following

conditions are fulfilled:

The dead bus start function is in principle activated by configuration

One of the three possible dead bus start functions is selected by configuration

The discrete input "Dead bus start release" is energized

The discrete input "Release CB" is energized

The discrete input "Reply: CB is open" is energized

The conditions for one of the preset dead bus start functions are fulfilled:

a) U1 has the value Un (taking the configured rated voltage difference into account dV |V-Vrated|) and U2 is

zero (taking the configured zero voltage difference into account dV |V-0|).

b) U1 is zero (taking the configured zero voltage difference into account dV |V-0|) and U2 has the value Vrated

(taking the configured rated voltage difference into account dV |V-Vrated|).

c) U1 is zero and U2 is zero (taking each configured zero voltage difference into account dV |V-0|).

Moreover, in case a) and b) the frequency of U1 and U2 must be within the configured limits.

The close command “CB close” is a pulse signal with the duration configured by pulse time (parameter 8933).

With additional “Synch-check” activation (terminal 54) the relay “CB close” remains permanently energized

as long as the dead bus closure conditions are fulfilled.

Synch-Check

In this condition, the unit can be used as a synchronization control. No control is carried out. The relay "CB

close" remains picked up, as long as the following conditions are met:

The voltage differential is within the configured limit

(screen "synchronization dVmax)

The frequency differential is within the configured limit

(screens "synchronization dfmax and dfmin")

The phase angle is within the configured limit

(screen "slip synchron. phimax")

The discrete input "Reply: CB is open" is energized

The discrete input "Enable CB" is energized

The systems U1 and U2 are within the permitted limits

(see Table 5-2: Operating modes - operating conditions, condition A, page 16).

The discrete input “Synch-check” is energized.

Synchronizing pulse:

close CB

Terminals 14/15

Ready for operation

Terminals 18/19

"Message:

Connect 2"

Terminal 16/17

Three-position

controller speed

higher/lower

Terminals 8/9/10

Three-position

controller voltage

higher/lower

Terminals 11/12/13

Through this relay, the CB receives the order to add-on. In normal operation,

the contact assembly in the synchronous point only closes for the configured

time of the add-on pulse. When in synchronizing control mode, a continuous

signal is output through this relay (see chapter "Control Inputs" on page 17).

If the CB has made contact and the unit gets this information through a corre

sponding discrete input, this relay de-energizes.

The contact assembly is closed when the unit is ready for operation. The relay

will de-energize if the following occurs:

a) The internal self-monitoring system has detected an alarm condition.

Trouble-free operation of the unit cannot be guaranteed and appropriate

corrective measures must be taken.

b) The synchronization time monitoring system is enabled and the config

ured time has expired before synchronization has occurred.

For the description of these control inputs please refer to chapter "Relay Out

put 16-17" on page 37

Through these relays, pulses are output from the internal speed governor, in

order to adjust the frequency of system U2 to the frequency of system U1

(synchronization), or to adjust the frequency to the configured set point fre

quency (no-load control). In order to obtain the speed variation required, the

relays have to be connected with the appropriate inputs of an external speed

governor. The order "lower" is output through the terminals 8/10. the order

"higher" is output through the terminals 8/9.

Through these relays, pulses are output from the internal speed governor, in

order to adjust the voltage of system U2 to the voltage of system U1 (syn

chronization), or to adjust the voltage to the configured voltage set point (no

load control). In order to obtain the voltage variation required, the relays have

to be connected with the appropriate inputs of an external voltage controller.

The order "lower" is output through the terminals 11/13. the order "higher"

through the terminals 11/12.