this is the frequency lower limit within the effective range of energy saving control . it is set in unit of Hz . please set the frequency lower limit within the effective range of energy saving control. energy saving command . it starts only from the frequency which is above the lowest energy saving frequency . it is only effective in the situation with uniform speed.
setting range is 0.0~400.0.
factory setting is  0.0.
v/f is a.
v/f with pg is a



magnum energy

it is used to adjust the strength of zero servo lock . the zero servo function is enabled when one of the multi function inputs is set to zero servo command . if the zero servo command is on when the factory (speed) reference falls below the zero speed level (b 2 -01) , a position control loop is formed and the motor is stopped. if zero servo gain is set be a comparatively bigger value, the lock strength will be bigger too . if it is too big vibration will occur .


any of the multi function inputs (h 1- 0 1 –0 6)is allocated to zero servo command . the set value  is 72.when frequency (speed) command is below zero speed levee (b 2- 0 1) ,it will be zero servo status. if the operation commands input is still (on ),off, the output will be cut, and the loss ends. the lock strength of zero servo depends on (b 9-0 1), zero servo gain , the bigger the set of b 9-0 1 is the bigger the lock strength is . please adjust the lock strength after adjusting the speed control (a s r)  gain . when zero servo is output to the exterior, any of the constant among multi function output (h 2-0 1~03)is set be to zero servo completion width (value is 33), then zero servo completion width (b 9-02) is set be too effective.


zero servo ending signal is in position of on within the range of zero servo starting position +/- zero servo completion width. the delay value from zero servo starting position to admissible position is set by 4 times of pulse quantity of pg (pulse encorder).set the allowable position displacement form the zero-servo rate of the PG ( pulse generator encoder )in use for instance .


for the encoder with 600 p/r,four times of pulse quantity is 2400 p/r .if zero servo command is in a position of off zero servo completion signal will be off. zero servo function , please avoid long time servo lock with 100% load , otherwise , it will result in inverters fault . please increase the power level of inverter when the servo retentiveness current drops to 10%.(magnum energy).


the acceleration time when multi function input emergency stop is on.0:unit:0.01 second 1:unit:0.1 second.
note:to set more precisely the acceleration time,please set c 1_10 to be 0. but the setting range in narrow.

set the frequency for automatic acceleration/switching below set frequency acceleration/deceleration time 4.above set frequency.acceleration/deceleration time 1
note:please set the frequency point in the situation where automatic switching of accelerating/deceleration is needed.if the acceleration/deceleration time
selector 1 and 2 are input via the multi function inputs,they will have priority.
c 2-01 s-curve characteristic time at acceleration start setting range is 0.0~2.50 and factory setting is 0.20.
c 2-02 s-curve characteristic time at acceleration end setting range is 0.00~2.50 and factory setting is 0.20.
the s-curve characteristic is set in unit of second.

using the s-curve characteristic function for acceleration and deceleration can reduce shock to the machinery when stopping and starting. with the inverter s-curve characteristic times can be set respectively for beginning acceleration ending acceleration beginning deceleration,and ending deceleration. when the s-curve characteristic time is set the acceleration and deceleration times will be lengthened as follows, acceleration time= selected acceleration time + (s-curve at beginning of acceleration + s-curve at end of acceleration)/2 . deceleration time =selected deceleration(magnum energy).
6 thoughts on “ENERGY SAVING”
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