EACON EC590 Series, Руководство пользователя

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EC590 Function parameters description EC590 Function parameters description
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5.5.6 SVC/FVC Slip Compensation Gain
Function Code
Parameter Name
Default
F2-06 SVC/FVC slip compensation gain
Setting Range
100
%
50% to 200%
This function improves control performance in SVC/FVC (F0-01 = 0/1).
For FVC (F0-01 = 1), it can adjust output current of the AC drive. Decrease this parameter
gradually when a large rating AC drive is controlling a lightly loaded motor. Adjustment of this
parameter is not required normally.
5.5.7 SVC Speed Feedback Stability
Function Code
Parameter Name
Default
F2-07
Speed feedback filter time in SVC
Setting Range
0.015s
0.000s to 1.000s
This parameter takes effect only when F0-01 = 0. You can improve motor stability by increasing
F2-07. Be aware that this may slow dynamic response. Decreasing it will obtain quick system re-
sponse but may lead to motor oscillation. Adjustment of this parameter is not required normally.
5.5.8 Torque Limit
The torque limit function can be used to limit torque to protect the system. The torque limit can
be either set by parameters in group F2 or by parameters in group A0.
Output torque must be limited when the AC drive is in speed control or in torque control (deter-
mined by A0-00) in FVC (F0-01 = 1). Torque limit varies with control mode.
Function Code Parameter Name Default
A0-00
Speed/Torque control selection
Setting Range
0
0: Speed control
1: Torque control
This function parameter determines whether the AC drive is in speed control or torque control.
The AC drive has two digital input functions related to torque control, function 29 "Torque con-
trol prohibited" and function 46 "Speed control/Torque control". The two functions must be used
together with parameter A0-00 to implement switchover between speed control and torque control.
● When function 46 is enabled, the control mode is determined by setting of A0-00.
● When function 46 is disabled, the control mode is reverse to setting of A0-00.
● When function 29 is enabled, the AC drive always run in speed control no matter whether funct
-
ion 46 is enabled or disabled.
Setting Torque Limit in Speed Control
■
Function Code Parameter Name Default
F2-09 Torque limit source in
speed control
Setting Range
0
0: P2-10 function code setting
1: Ai1 2: AI2
3:Keyboard potentiometer
4: Pulse setting (S5)
5: Communication setting
6
：
MIN(AI1,AI2) 7
：
MAX(AI1,AI2)
The full scale of 1
-
7 corresponds to
F2
-
10
.
F2-10
Digital setting of torque
limit in speed control
150.0%
0.0% to 200.0%
F2-11
Torque limit source in speed
control (regenerative)
20
0
:
F2
-
10
(
electrical or regenerative
)
1: AI1 2: AI2 3:Keyboard potentiometer
4
:
Pulse reference
5
:
Communication reference
6
:
MIN
(
AI1
,
AI2
)
7
:
MAX
(
AI1
,
AI2
)
8
:
F2
-
12
The full scale of 1
-
7 corresponds to
F2
-
12
.
F2-12
Digital setting of torque
limit in speed control
regenerative)
150.0%
0.0% to 200.0%
This function parameter restricts output torque of the AC drive in speed control. The torque
limits are defined by F2-09 to F2-12.
When F2-11 is set to 0, the motoring state and regenerative state are not distinguished. The
torque limit is defined by F2-10.
When F2-11 is set to 1 to 8, the motoring state and regenerative state are distinguished. In
motoring state, full range of torque limit is set by F2-010. In regenerative state, full range of
torque limit is set by F2-12.