3Com VFD-D D Refrigerator User Manual


 
Chapter 4 Parameter Settings|DD Series
4-53
will STOP. The holding time is valid only when door open has reached the complete position.
Within the holding time, when OD command (door open command) is given, the drive will begin door
close action.
When Pr.05-18 set to 999.9, CD terminal is executing a permanent holding command, user can only
terminate this command by using the STOP/RESET key on digital keypad.
Door Close Acceleration Time of S1 Curve
Control mode VF VFPG SVC FOCPG FOCPM
Factory setting: 0.0
Settings 0.0~10.0sec
Door Close Acceleration Time of S2 Curve
Control mode VF VFPG SVC FOCPG FOCPM
Factory setting: 0.0
Settings 0.0~10.0sec
This parameter is used to ensure smooth acceleration and deceleration via S-curve, different setting will
create different S-curve. When this function is activated, the drive will create a smooth acceleration and
deceleration curve by original acceleration and deceleration time. Setting Pr.05-19=0.0 or Pr.05-20=0.0
will create a linear acceleration and deceleration curve.
Actual acceleration time = the selected acceleration time for door close + (Pr.05.19 + Pr.05.20)/2
05.19=S1
05.20=S2
05.08
Accerleration
Time
Freqeunc
y
Door Close DC Brake Current Level
Control mode VF VFPG SVC
Factory setting: 0
Settings 00~100%
This parameter sets the level of DC Brake Current output to the motor during start-up and stopping.
When setting DC Brake Current, the Rated Current (Pr.00-01) is regarded as 100%. It is recommended
to start with a low DC Brake Current Level and then increase until proper holding torque has been
attained. Do not set Pr.05-21 greater than rated current in order to prevent motor damage. Also for your
personal safety, do not use DC braking for door holding action.
When AC motor drive is in FOCPG/FOCPM control mode, DC brake functions are ready to use, no
additional setting is required.
Door Close DC Brake Time when Startup
Control mode VF VFPG SVC FOCPG FOCPM
Factory setting: 0.0
Settings 0.0~60.0sec
This parameter determines the duration of the DC Brake current after a RUN command.
Door Close DC Brake Time when Stopping
Control mode VF VFPG SVC FOCPG FOCPM VF
Factory setting: 0.0
Settings 0.0~60.0sec
This parameter determines the duration of the DC Brake current during braking.