5–48
469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL
CHAPTER 5: SETTINGS
If the motor is called upon to drive a high inertia load, it is quite possible and acceptable for
the acceleration time to exceed the safe stall time (keeping in mind that a locked rotor
condition is different than an acceleration condition). In this instance, each distinct portion
of the thermal limit curve must be known and protection must be coordinated against that
curve. The relay protecting the motor must be able to distinguish between a locked rotor
condition, an accelerating condition, and a running condition. The Voltage Dependent
MESSAGE
TIME TO TRIP AT
4.75 x FLA: 16.2 s
Range: 0.5 to 99999.9 s in steps of 0.1
MESSAGE
TIME TO TRIP AT
5.00 x FLA: 14.6 s
Range: 0.5 to 99999.9 s in steps of 0.1
MESSAGE
TIME TO TRIP AT
5.50 x FLA: 12.0 s
Range: 0.5 to 99999.9 s in steps of 0.1
MESSAGE
TIME TO TRIP AT
6.00 x FLA: 10.0 s
Range: 0.5 to 99999.9 s in steps of 0.1
MESSAGE
TIME TO TRIP AT
6.50 x FLA: 8.5 s
Range: 0.5 to 99999.9 s in steps of 0.1
MESSAGE
TIME TO TRIP AT
7.00 x FLA: 7.3 s
Range: 0.5 to 99999.9 s in steps of 0.1
MESSAGE
TIME TO TRIP AT
7.50 x FLA: 6.3 s
Range: 0.5 to 99999.9 s in steps of 0.1
MESSAGE
TIME TO TRIP AT
8.00 x FLA: 5.6 s
Range: 0.5 to 99999.9 s in steps of 0.1
MESSAGE
TIME TO TRIP AT
10.0 x FLA: 5.6 s
Range: 0.5 to 99999.9 s in steps of 0.1
MESSAGE
TIME TO TRIP AT
15.0 x FLA: 5.6 s
Range: 0.5 to 99999.9 s in steps of 0.1
MESSAGE
TIME TO TRIP AT
20.0 x FLA: 5.6 s
Range: 0.5 to 99999.9 s in steps of 0.1
MESSAGE
MINIMUM ALLOWABLE
LINE VOLTAGE: 80%
Range: 70 to 95% in steps of 1
MESSAGE
STALL CURRENT @ MIN
Vline: 4.80 x FLA
Range: 2.00 to 15.00 x FLA in steps of
0.01
MESSAGE
SAFE STALL TIME @
MIN Vline: 20.0 s
Range: 0.5 to 999.9 s in steps of 0.1
MESSAGE
ACCEL. INTERSECT @
MIN Vline: 3.80 x FLA
Range: 2.00 to
STALL CURRENT @ MIN
VLINE
– 0.01 in steps of 0.01
MESSAGE
STALL CURRENT @ 100%
Vline: 6.00 x FLA
Range: 2.00 to 15.00 x FLA in steps of
0.01
MESSAGE
SAFE STALL TIME @
100% Vline: 10.0 s
Range: 0.5 to 999.9 s in steps of 0.1
MESSAGE
ACCEL. INTERSECT @
100% Vline: 5.00 x FLA
Range: 2.00 to
STALL CURRENT @ MIN
VLINE
– 0.01 in steps of 0.01
Summary of Contents for Masoneilan 469 Series
Page 4: ......
Page 92: ...3 28 469 MOTOR MANAGEMENT RELAY INSTRUCTION MANUAL CHAPTER 3 INSTALLATION ...
Page 256: ...5 112 469 MOTOR MANAGEMENT RELAY INSTRUCTION MANUAL CHAPTER 5 SETTINGS ...
Page 298: ...6 42 469 MOTOR MANAGEMENT RELAY INSTRUCTION MANUAL CHAPTER 6 ACTUAL VALUES ...
Page 321: ...CHAPTER 8 APPENDIX 469 MOTOR MANAGEMENT RELAY INSTRUCTION MANUAL 8 9 808712A1 CDR ...
Page 330: ...8 18 469 MOTOR MANAGEMENT RELAY INSTRUCTION MANUAL CHAPTER 8 APPENDIX ...