Speed2 Undercurrent; Speed2 Acceleration - GE 469 Instruction Manual

469
Motor Management Relay

Speed2 Undercurrent

SPEED2
UNDERCURRENT

Speed2 Acceleration

SPEED2
ACCELERATION
5–92
PATH: SETPOINTS S14 2-SPEED MOTOR
[ ] BLOCK SPEED2 U/C
FROM START: 0 s
SPEED2 U/C ALARM:
MESSAGE
Off
SPEED2 U/C ALARM
MESSAGE
PICKUP: 0.70 x FLA
SPEED2 U/C ALARM
MESSAGE
DELAY: 1 s
SPEED2 U/C ALARM
MESSAGE
EVENTS: Off
SPEED2 U/C
MESSAGE
TRIP: 0ff
SPEED2 U/C TRIP
MESSAGE
PICKUP: 0.70 x FLA
SPEED2 U/C TRIP
MESSAGE
DELAY: 1 s
The addition of a second Undercurrent trip or alarm level may be useful as it will
indicate if the wrong setpoints are being used for the wrong speed i.e. normal
running current for Speed 2 may be undercurrent for Speed 1.
PATH: SETPOINTS S14 2-SPEED MOTOR
[ ] SPEED2 ACCEL. TIMER
FROM START: 10.0 s
ACCEL. TIMER FROM
MESSAGE
SPEED1-2: 10.0 s
SPEED SWITCH TRIP
MESSAGE
SPEED2 DELAY: 5.0 s
SPEED2 RATED SPEED:
MESSAGE
3600 RPM
Two additional acceleration timers are provided for the two speed motor feature.
One timer is for a start in Speed 2 from a stopped condition. The other is an
acceleration timer for the transition from Speed 1 to Speed 2. Also, while the motor
is running, the 469 will ignore Mechanical Jam protection during the acceleration
from Speed 1 to Speed 2 until the motor current has dropped below Speed 2 FLA ×
Overload Pickup value, or the Speed 1-2 acceleration time has expired. At that point
in time, the Mechanical Jam feature will be enabled with the Speed 2 FLA.
http://www.GEindustrial.com/multilin
S14 Two-Speed Motor
SPEED2 UNDERCURRENT
Range: 0 to 15000 s in steps of 1
Range: Off, Latched, Unlatched
Range: 0.10 to 0.95 x FLA in steps of
0.01
Range: 1 to 60 s in steps of 1
Range: On, Off
Range: Off, Latched, Unlatched
Range: 0.10 to 0.99 x FLA in steps of
0.01
Range: 1 to 60 s in steps of 1
SPEED2 ACCELERATION
Range: 1.0 to 250.0 s in steps of 0.1
Range: 1.0 to 250.0 s in steps of 0.1
Range: 1.0 to 250.0 s in steps of 0.1.
Seen only if one of the digital
inputs is assigned as Speed
Switch
Range: 100 to 7200 RPM in steps of 1.
Seen only if one of the digital
inputs is
Tachometer.
GE Multilin
assigned as