Baldor TS250 User Manual

Page 37

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Operation 4-15

MN2417

Table 4-10 Engine Setpoints

Start RPM

“Firing” speed when iL controller stops cranking (starter goes OFF).

Step: 1% of nominal RPM; Range: 5 − 50 %

Starting POil

When reached controller stops cranking (starter goes OFF).

Step: 0,1 psi; Range: −100 − 10000

Note: There are three conditions for stop cranking: Starting RPM,

StartingPOil and D+ (when enabled). Starter goes off when any

of these conditions is valid.

Prestart time

Time of closing of the PRE−START output prior to the engine start.

Set to zero if you want to leave the output PRE−START open.

Step: 1s; Range: 0 − 600 s

MaxCrank time

Maximum time limit of cranking. Step: 1s; Range: 1 − 60 s

CrnkFail pause

Pause between crank attempts. Step: 1s; Range: 5 − 60 s

Crank attemps

Max number of crank attempts. Step: 1; Range: 1 − 10

Idle time

Idle time delay starts when RPM exceeds Start RPM . Start fail is detected

when during Idle state RPM decreases below 2.

During the Idle time timer running the binary output IDLE/NOMINAL is

opened, when it elapses the IDLE/NOMINAL output closes.

Binary output IDLE/NOMINAL opens during Cooling period again.

Step: 1 s; Range: 0 − 600 s

Note: If the IDLE function not supported on the governor, set the Idle time

nevertheless to minimum 5s to avoid Underspeed possibly

caused by instability of the engine short after start.

GCB CloseDelay

GCB can be closed earliest GCB CloseDelay after Stabil time when all

electric values are in overunder voltage and over−under frequency limits.

Step: 1 s; Range: 0 − 300 s

Stabil time

Generator Nominal voltage is detected during genset start after starter is

switched off and Idle time elapses. Electric generator protections are

active since detection. Step: 1 s; Range: 0 − 300 s

MinStpValvTime

Binary output Stop solenoid closes when stop sequence begins and

closes at least for MinStpValvTime. Example MinStpValvTime = 20 sec.

a) When engine stops (RPM=0) in 10 seconds, Binary output Stop

solenoid still stays closed for 10 sec.

b) When engine stops in 30 seconds, Binary output Stop solenoid opens

10 seconds after RPM=0 and Vg =0 and Oil pressure = 0. Those 10 sec is

fix time for safe stop. Step: 1s; Range: 0 − 180 s

Note: Stop of engine is detected when all following conditions are met:

RPM =0, Oil pressure < StartingPOil and Generator voltage < 10 VAC.

Stop fail is detected when is difference between those conditions, e.g

RPM=O and Generator voltage > 10V.

Start RPM

RPM

B O S tarter

B O IDLE /RA T E D

RPM = 2

RPM

Start Fail

Idle tim e

M in stab tim e

Electric protections

activ e

Idle Function

Stabil Time

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