ABB ACH550 - Full Version - Enervex

ACH550-UH User’s Manual 1-119
Group 21: Start/Stop
Code Description Range Resolution Default S
2104 DC CURR CTL 0…2 1 0 (NOT SEL)
Selects whether DC current is used for braking or DC Hold.
Motor
0 = NOT SEL – Disables the DC current operation.
speed
DC hold
1 = DC HOLD – Enables the DC Hold function. See the diagram.
• Requires parameter 9904 MOTOR CTRL MODE = 1 (VECTOR:SPEED)
• Stops generating sinusoidal current and injects DC into the motor when
T
both the reference and the motor speed drop below the value of
parameter 2105.
Ref
• When the reference rises above the level of parameter 2105 the drive
resumes normal operation.
2 = DC BRAKING – Enables the DC Injection Braking after modulation has DC hold
stopped.
speed
T
• If parameter 2102 STOP FUNCTION is 1 (COAST), braking is applied after
start is removed.
• If parameter 2102 STOP FUNCTION is 2 (RAMP), braking is applied after ramp.
2105 DC HOLD SPEED 0…360 rpm 1 rpm 5 rpm
Sets the speed for DC Hold. Requires that parameter 2104 DC HOLD CTL = 1 (DC HOLD).
2106 DC CURR REF 0…100% 1% 30%
Defines the DC current control reference as a percentage of parameter 9906 MOTOR NOM CURR.
2107 DC BRAKE TIME 0.0…250.0 s 0.1 s 0.0 s
Defines the DC brake time after modulation has stopped, if parameter 2104 is 2 (DC BRAKING).
2108 START INHIBIT 0, 1 1 0 (OFF)
Sets the Start inhibit function on or off. If the drive is not actively started and running, the Start inhibit function ignores
a pending start command in any of the following situations and a new start command is required:
• A fault is reset.
• Run Enable (parameter 1601) activates while start command is active.
• Mode changes from local to remote.
• Control switches from EXT1 to EXT2.
• Control switches from EXT2 to EXT1.
0 = OFF – Disables the Start inhibit function.
1 = ON – Enables the Start inhibit function.
2109 EMERG STOP SEL -6…6 1 0 (NOT SEL)
Defines control of the Emergency stop command. When activated:
• Emergency stop decelerates the motor using the emergency stop ramp (parameter 2208 EMERG DEC TIME).
• Requires an external stop command and removal of the emergency stop command before drive can restart.
0 = NOT SEL – Disables the Emergency stop function through digital inputs.
1 = DI1 – Defines digital input DI1 as the control for Emergency stop command.
• Activating the digital input issues an Emergency stop command.
• De-activating the digital input removes the Emergency stop command.
2…6 = DI2…DI6 – Defines digital input DI2…DI6 as the control for Emergency stop command.
•See DI1 above.
-1 = DI1(INV) – Defines an inverted digital input DI1 as the control for Emergency stop command.
• De-activating the digital input issues an Emergency stop command.
• Activating the digital input removes the Emergency stop command.
-2…-6 = DI2(INV)…DI6(INV) – Defines an inverted digital input DI2…DI6 as the control for Emergency stop command.
•See DI1(INV) above.
2110 TORQ BOOST CURR 15…300% 1% 100%
Sets the maximum supplied current during torque boost.
• See parameter 2101 START FUNCTION.
Parameters