YASKAWA A1000 HHP Programming Manual page 70

1.4 d: Reference Settings
Speed Limit Positive
Direction (Forward)
Motor
Rotation Forward
Direction
Torque
Torque
Δn
Limit
Internal
Bidirectional
Torque
Speed Limit
Reference
Bias
(d5-08 = 0)
<1>
Speed Limit
Bias d5-05
Torque
Torque
Δn
Limit
Internal
Unidirectiona
Torque
l Speed Limit
Reference
Bias
(d5-08 = 1)
Speed
<1>
Limit Bias
d5-05
Application
Line Direction
Example
<1> The value of delta n in the drawings depends on the ASR setting in parameters C5-oo.
n Indicating Operation at the Speed Limit
Program a digital output to close when the drive operates at or beyond the speed limit (H2-oo = 32). Use this output to notify
a control device such as a PLC of abnormal operating conditions.
n Switching Between Torque and Speed Control
Use a digital input to switch Torque Control and Speed Control (H1-oo = 71). When switching from Speed Control to Torque
Control, the torque limit becomes the torque reference and the speed reference becomes the speed limit. This change is reversed
when switching back to Speed Control.
If required by the application, set up a delay time using parameter d5-06. The reference values (torque reference/speed limit
in Torque Control or speed reference/torque limit in Speed Control) are held during this switch delay time. Change the reference
values from the controller within this delay time.
Note: 1. The switching delay time d5-06 is not applied when the Stop command is entered. Here the operation switches immediately to speed
control and the drive decelerates to stop at the torque limit.
2. Set d5-01 to 0 when switching between Torque Control and Speed Control. An oPE15 (Torque Control Setting Error) alarm will be
triggered if parameter d5-01 is set to 1 while H1-oo is set to 71 at the same time.
70
Negative Negative
(Reverse) (Reverse)
Reverse
Torque
Speed Limit
Limit
Bias d5-05
Speed
Limit
Speed
0
Speed
Limit
Speed Limit
Torque
Bias d5-05
Limit
Torque
Δn
Limit
Speed
Limit
Speed
0
Speed
Limit
Δn
Torque
Limit
Winder
Speed Torque
M
Line Direction
YASKAWA ELECTRIC SIEP YEAHHP 01B YASKAWA AC Drive – A1000 HHP Programming Manual
Operating Conditions
Positive Positive
(Forward) (Forward)
Torque
Torque
Limit
Speed Limit
Bias d5-05
Speed
0
Internal
Torque Internal
Reference Torque
Reference
Torque
Δn
Limit
Torque
Torque
Limit
Speed Limit
Bias d5-05
Speed
0
Internal
Torque
Reference
Δn
Torque
Δn
Limit
Speed Torque Torque
M
Negative Negative
(Reverse) (Reverse)
Forward
Torque
Torque
Limit
Speed Limit
Bias d5-05
Speed
Speed Limit
Limit Bias
Speed
d5-05
0
Δn
Torque
Dn
d5-05
Limit
Torque
Torque
Limit
Speed Limit
Bias d5-05
Internal
Speed Limit
Torque
Reference
Speed
0
Internal
Torque
Reference
Torque
Δn
Limit
Unwinder
Speed Torque Speed
Line Direction
M
Positive
(Forward)
Reverse
Torque
Δn
Δn
Internal
Torque
Reference
Speed
0
Speed
Limit Bias
Speed
d5-05
Limit
Torque
Limit
Torque
Δn
Δn
Speed
0
Speed
Speed Limit Bias
d5-05
Limit
Torque
Limit
M
Line Direction