gefran VDI100 Series Instruction Manual page 148

For the examples of UP/DOWN control wiring and operation, please refer to figure 4.4.19 and 4.4.20.
UP / DOWN Command Operation
When the Forward Run command is active and the UP or Down command is momentarily activated the inverter
will accelerate the motor up to the lower limit of the frequency reference (00-13).
When using the UP / Down command, the output frequency is limited to the upper limit of frequency reference
(00-12) and the lower limit of frequency reference (00-13).
The UP / DOWN command uses acceleration 1 or 2 / deceleration time 1 or 2 for normal operation Tacc1 /
Tdec1 (00-14, 00-15) or Tacc2 / Tdec 2 (00-16, 00-17).
*Refer to parameter 03-40 of UP/ Down frequency width setting for other functions of UP / Down.
03-0X =10: Acceleration/deceleration 1 selection
03-0X =30: Acceleration/deceleration 2 selection
Refer to the "multi-function digital input terminals select acceleration / deceleration time" page 4-76.
03-0X =11: Inhibit Acceleration/deceleration command (hold command)
When activated suspends the acceleration / deceleration operation and maintains the output frequency at
current level.
If 11-58 = 1, the frequency reference value is saved when the acceleration/deceleration inhibit command is
active the frequency reference value is saved. Deactivating the acceleration / deceleration inhibits command
resumes acceleration / deceleration and saved value will be erased.
If 11-58 = 1, the frequency reference value is saved when the acceleration/deceleration inhibit command is
active, the frequency reference value is saved even when powering down the inverter.
148
Figure 4.4.19 UP/DOWN wiring and operation example
S1 Forward Run / Stop (03-00 = 0)
S5 Up Command (03-04=8)
S6 Down Command (03-04=9)
24VG
Figure 4.4.20 Up / Down command timing diagram
Power
Supply
Forward
Run
Up
Command
Down
Command
F
UL
( 00 - 12)
Output
Frequency
F
LL
( 00 - 13 )
Hold
UP Command (Terminal
S5)
Down Command (Termi-
nal S6)
Operation Accel (UP)
Hold
1 0 0
0 1 0
Decel (DWN) Hold
t
t
t
t
*1
*2
t
VDI100 • Instruction manual
1
1
Hold