MOT OR DRIVE ALARMS 141
MO TOR DRIVE ALARMS 2
ST ALL TRIP MENU 3
ST ALL TRIP MENU 3
180)STALL DELA Y TIME
ST ALL TRIP MENU 3
178)STALL TRIP ENBL
ST ALL TRIP MENU 3
179)STALL CUR LEVEL
R R
R
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8.1.8 MOT OR DRIVE ALARMS / ST ALL TRIP
MENU
See also 6.8.3.1.2 How to get overloads
greater than 150% using 82)O/LO AD % T ARGET.
In this case 179)STALL CUR LEVEL must be set
belo w 82)O/LO A D % T ARGET for stall protection.
8.1.8.1 STALL TRIP MENU / Stall trip enable PIN 178
A DC motor is generally not capable of carrying large amounts of current when stationary. If the current
exceeds a certain limit and the motor is stationary, then the PL/X controller can provide a stall trip alarm.
If 178)ST ALL TRIP ENBL is enabled, the current is above 179)ST ALL CUR LEVEL, and the motor is at zero
speed (belo w ZERO INTERLO CKS / 117)ZERO INTLK SPD %) for longer than 180)ST ALL DELA Y TIME, then
the alarm is activated.
WARNING. When using a rmature voltage feedback the IR drop may be sufficient to provide a signal in exce ss
of 117)ZERO I NTLK SPD % and hence the stall alarm will not operate. Set 14)IR COMPENSATION as
accurately as possible, and then test the alarm with a stalled motor. (Di sable the field). Progressively increase
current limit to above the 179)STALL CUR LEVEL, to check that the AV speed feedback remains below
117)ZERO INTLK SPD %. It may be necessary to increase 117)ZERO INTLK SPD % to ensure tripping.
8.1.8.2 ST ALL TRIP MENU / Stall current level PIN 179
See 6.8.3.1.2 How to get overloads greater than 150% using 82)O/LO A D % TARGET.
8.1.8.3 ST ALL TRIP MENU / Stall time PIN 180
ST ALL TRIP MENU 3
178)STALL TRIP ENBL
178)STALL TRIP ENBL
ENABLED
PARA METER RANGE DEF AULT PIN
ST ALL TRIP ENBL EN ABLED OR DIS ABLED ENABLED 1 78
Allo ws the motor stall alarm
trip to be enabled.
R R
ST ALL TRIP MENU 3
179)STALL CUR LEVEL
179)STALL CUR LEVEL
95.00%
PARA METER RANGE DEF AULT PIN
ST ALL CUR LEVEL 0.00 to 150.00 % 95.00 % 179
Sets the stall alarm trip LEVEL
as a % of rated motor amps.
R R
ST ALL TRIP MENU 3
180)STALL DELA Y TIME
180)STALL DELA Y TIME
10.0 SECS
PARA METER RANGE DEFAULT PIN
ST ALL DELA Y TIME 0.1 to 600.0 seconds 10.00 secs 180
Sets the delay time bet w een
stall start and alarm trigger.
R R
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