Yaskawa MP900 Series Machine Controller New Ladder Editor - Manual (Page 169)

1.7 DDC Instructions
1-159
1
• Addition-subtraction speed 1(DVDT1) is operated now when DVDT1 operation instruc-
tion (DVDTF) is turning on.
• When DVDTF is turning off, DVDT1 = 0 is output.
After (
∗
S) operates (
∗
O) of either as follows, the operation of addition-subtraction speed
1 (DVDT1) is output by DVDT1 operation selection (DVDTS) now when DVDTF is
turning on.
When DVDTS is turning off: DVDT = (V × DVDTK)-(V’ × DVDTK); DVDTK:
DVDT coefficient
• Addition-subtraction speed 2 (DVDT2) is output as follows now.
(
∗
S) is accelerating: In S character section: DVDT2 = ±ADVS.
Outside S character section: DVDT2 = ±ADV
The moderation inside: In S character section: DVDT2 = ±BDVS.
Outside S character section: DVDT2 = ±BDV
• It was output to operate (
∗
O) as follows maintenance per hour degree rise (ABMD).
• 0 velocities (LSP) turn on in turning on with V = 0 and agreement (EQU) is turned on by
VI = V.
• When line in operation (RN) is "Open", V = 0, DVDT1 = 0, DVDT2 = 0, DVDT3 = 0,
ABMD = 0, REM1 = 0, REM2 = 0, and REM3 = 0 are output.
ADV × Ts (0.1 ms) + REM2 ADVS
,
: previous value of ADVS
AADVS =
AAT (0.01 s)
× 100
Inside the S-curve area (BDVS
When VI > V (V
≥
0),
V
= V + ADVS:
In acceleration (ARY)
ON
When VI < V (V
≤
0),
V
= V - ADVS: In acceleration (ARY)
ON
Acceleration rate in the S-curve area (ADVS) = ADVS ± AADVS
,
,
, ,
, ,
,
S character section moderation rate (BDVS) = BDVS ± BBDVS
BDV
× Ts(0.1 ms) + REM2 In (BDVS < BDV) in S character section
BBDVS=
BBT (0.01 s)
× 100
At VI > V (V < 0)
V = V + BDVS; Moderation inside (BRY)
turning on
At VI < V (V > 0)
V=V -BDVS; (BRY) turning on when
being accelerating
V : Speed output value last time
VI: Speed instruction input
Ts : Scanning time setting
, ,
,
, ,
,
,
,
(V - V’)
When DVDTS is turning on: DVDT1=
ADV
× 5000
DVDT2’
× DVDT2’
ABMD =
2
× AADVS (BBDVS)
Present value last time of addition-subtraction
speed 2 (DVDT2)