Magnetek Quattro DC Elevator Drive Benutzerhandbuch

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Quattro DC Drive Parameters A1 
 
 
SPD DEV LO LEVEL and SPD DEV HI 
LEVEL 
(Speed Deviation Low / High Level) 
These two functions are available to indicate 
how the speed feedback is tracking the speed 
reference. 
•  Speed Deviation Low – indicates that the 
speed feedback is tracking the speed 
reference within a defined range. 
•  Speed Deviation High – indicates that the 
speed feedback is failing to properly track 
the speed reference. 
The Speed Deviation Low function has the 
ability to set a configurable logic output.  The 
logic output will be true, when the speed 
feedback is tracking the speed reference within 
a defined range around the speed reference 
for a defined period of time (see Figure 13).  
The defined range is determined by the Speed 
Deviation Low Level parameter (SPD DEV LO 
LEVEL) and the defined time is determined by 
the Speed Deviation Time parameter (SPD 
DEV TIME).  
The Speed Deviation High function 
annunciates a Speed Deviation Alarmand has 
the ability to set a configurable logic output.  
The alarm will be annunciated and the logic 
output will be true, when the speed feedback is 
not properly tracking the speed reference and 
is outside a defined range around the speed 
reference (see Figure 13).  The defined range 
is determined by the Speed Deviation High 
Level parameter  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Figure 13: Speed Deviation Example 
 
 
 
 
RUN DELAY TIMER 
 
 
 
This parameter allows the user to delay the 
drive’s recognition of the RUN signal  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
ROLLBACK GAIN 
Note: this function is only for use with multi-
step speed commands (SPD COMMAND SRC 
(C1) = MULTI-STEP) 
During the start, this function can help the 
drive re-establish the torque to help control 
rollback (or roll forward). 
Set-up: In order to use the Anti-Rollback 
function, the following parameters must be set: 
SPD REF RELEASE(C1)=BRAKE PICKED 
and BRAKE PICK CFRM(C1)=INTERNAL 
TIME.  With the these settings for SPD REF 
RELEASE(C1) and BRAKE PICK CFRM(C1), 
the BRAKE PICK TIME (A1) parameter 
determines the amount of time the drive will 
command zero speed after the Run command 
is given and the amount of time the drive will 
command zero speed after the Run command 
is removed.   
At the start, the ROLLBACK GAIN parameter 
will increase the speed regulator gain during 
the time determined by BRAKE PICK TIME 
parameter when the drive is commanding zero 
speed (i.e. the time between the speed 
regulator is released and the speed reference 
is released).  During this BRAKE PICK TIME, 
the mechanical brake should be picked (either 
by the car controller or drive). 
Adjustment:  Start at ROLLBACK GAIN=1 and 
increase in increments of 1 to help control 
rollback. 
IMPORTANT
: too high a setting for this 
parameter can lead to drive instability. 
i
nternal connection  
READY TO RUN 
(logic output)
 
•  software ready 
•  no faults 
•  drive boosting 
CONTACT
CFIRM
(logic input)
(if used)
RUN or  
RUN UP or RUN
DOWN (logic 
input) 
DRIVE 
ENABLE (logic 
input) 
internal connection  
FLUX CONFIRM (logic output) 
• 
flux level 90% 
Drive Internal 
Signals 
Speed 
Regulator  
and 
Reference 
Release 
 
Drive Internal Signal 
Run Confirm 
Run recognition 
delay  
Speed Deviation High 
(Speed Deviation Alarm) 
Speed Deviation Low
Speed Deviation High
Speed Reference
Speed Feedback
(Speed Deviation Alarm)
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