Reference Manual
BLR-CM/BLR-CM3phase
Rev. 08
2018-09
20
2.5.5.5
SWITCH INTERVAL STEP EXCHANGE
For step exchange a separate switch interval is used. This is the delay-time between switching-off an active step and
switching-in the next step to get a better power-factor. Step exchange can be set active in menu 2.5.5.10.
2.5.5.6
ASYM. FACTOR
ASYMMETRY FACTOR of switch interval. The factor is the ratio between switch interval for switching on and switching
off. Switch interval for step exchange is not affected by this setting.
X= 1 = equal
X = +2 to +127: delay switching off = switch interval multiplied by X
X = -2 to -127:
delay switching on = switch interval multiplied by X
2.5.5.7
STEP RECOGNITION
Pushing
◄►
-key is changing between "ON" and "OFF".
"Step recognition OFF": Capacitor sizes should be programmed manually:
a)
When fast-oscillating load influences automatic step size recognition.
b)
When recognition of defective steps is not wished
c)
When capacitor contactors are switching with a delay of more than 200msec.
"Step recognition ON" Step sizes are detected and corrected automatically during normal operation. “Step recognition
ON” is the factory setting. It allows monitoring of capacitor sizes and gives alarms when they are faulty. Step sizes which
are programmed manually will be overwritten by step recognition.
2.5.5.8
SWITCH CYCLES BALANCING
Pushing
◄►
-key is changing between "ON" and "OFF".
Balancing of switch cycles of capacitors with similar sizes produces an equal attrition of the contactors and capacitors.
2.5.5.9
SWITCH CYCLES BALANCING %
Capacitors within this tolerance band are capacitors with similar sizes for switch cycles balancing.
2.5.5.10 STEP EXCHANGE
Pushing
◄►
-key is changing between "ON" and "OFF".
the same size, this function makes no sense and in some conditions the relay can start hunting.
2.5.5.11 CONTROL SENSITIVITY
Factory setting is 60%. This value can be set in a range between 55% and 100%.
