Magnetek Quattro DC Elevator Drive Benutzerhandbuch

 

(Motor Rotation) 

 

 

This parameter allows the user to change the 
direction of the motor rotation.  As an example, if 
the car controller is commanding the up 
direction and the car is actually going in a down 
direction, this parameter can be changed to 
allow the motor rotation to match the car 
controller command.  

−  forward 

−  reverse 

Y Y 

(Encoder Connection)  
This parameter allows the user to electronically 
switch A and /A signals from the encoder 
without moving any wiring.   

−  forward 

−  reverse 

Y Y 

(Speed Reference Release)   
The user can select when the Speed Reference 
Release signal is asserted:  

•  If the user does not want the drive to wait for 

the mechanical brake to be picked then SPD 
REF RELEASE can be made equal to REG 
RELEASE; 

•  If the user does want the drive to wait for the 

brake to be picked then SPD REF 
RELEASE is not asserted until an internal 
BRAKE PICKED signal becomes true.  The 
user must have one logic input set to Mech 
Brk Pick – see page 61. 

−  reg release 

−  brake picked 

Y Y 

(Contactor Confirm Source)  
This switch selects if hardware confirmation of 
motor contactor closure is necessary before 
drive attempts to pass current through motor.  If 
hardware confirmation is available set to 
EXTERNAL TB and select the Contact Cfirm 
signal on a logic input terminal – see page 61.  

 

−  external tb 

−  none 

Y Y 

(Tach Filter)  
Determines if encoder feedback is filtered  

−  off 

−  on 

Y Y 

(Pre-Torque Source) 

  

This switch determines the source of a pre 
torque command and how it is used.  
Pre-torque is the value of torque that the drive 
should produce as soon as the speed regulator 
is released to prevent rollback due to 
unbalanced elevator loads.  
This ‘priming’ of the speed regulator is done with 
the pre-torque command, which is used when 
the speed regulator release is asserted.   
The two possible sources for the pre-torque 
command are following: 

• 

serial channel  

• 

analog channel  

The serial channel is the RS-422 serial port on 
the Customer Interface PCB.  The analog pre-
torque signal is bipolar (±10V).  Available with 
the analog channel is a Pre-Torque Command 
Multiplier (PRE TORQUE MULT (A1)) and Pre-
Torque Bias (PRE TORQUE BIAS(A1)). These 
parameters are used to scale the user’s analog 
pre-torque command to the proper range for use 
by the drive software.   

−  none 

−  analog input 

−  serial 

Y Y 

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