YASKAWA VS-616PS5 Series Programming Manual page 43

Speed/Torque
Selection Command
(Terminal 8 Input)
STOP
Run Command
Control Method
Terminal 13 Input
Terminal 16 Input
Sequence
Sequence Description
• When the speed/torque control selection contact is OPEN, speed control is acti-
vated:
• Speed reference during speed control depends on the frequency reference
selection (B1-01) setting. To use terminal 13 or 14 as the master frequency ref-
erence, set Bl-0l to "l."
• Torque limit during speed control is the smaller of the absolute value of terminal
16 torque limit (H3-05 = 13), or the values set in the torque limit parameters (L7-
01 to L7-04).
• When a stop command is given during speed control, speed control is main-
tained and the smaller of the absolute value of terminal l6 torque limit, or the val-
ues set in the torque limit parameters (L7-01 to L7-04), is used as the torque
limit. Then the motor decelerates to stop.
‚ When the speed/torque control selection contact is CLOSED, torque control is
activated:
• Speed limit during torque control is:
• the master frequency reference at terminal 13 or 14 when speed limit selection
(D5-03) is set to "1"
• the speed limit value (D5-04) when D5-03 = "2," regardless of the frequency ref-
erence selection (B1-01) setting.
• During torque control, the terminal 16 analog input value becomes the torque
reference.
ƒ By giving a stop command during torque control, operation changes to speed con-
trol automatically, and the motor decelerates to stop. The torque limit during deceler-
ation to stop becomes the values set in the torque limit parameters (L7-01 to L7-04).
Note:The control mode actually changes after the speed/torque control selection command changes and
after the reference delay timer (D5-06) elapses. The terminal 13 speed reference/speed limit and the
terminal 16 torque limit/torque reference are stored in the inverter until the time set to D5-06 passes.
VS-616PS5 Programming Manual
OFF ON
RUN
Speed Control Torque Control
Speed Reference Speed Limit
Torque Limit Torque Reference
• ‚
Figure 28 Speed/Torque Control Selection Timing Diagram
Section D: Reference Parameters
OFF ON
Speed Control Torque Control
Speed Reference Speed Limit
Torque Limit Torque Reference
• ‚
D5 Torque Control
Speed Control (decel to stop)
ƒ
43