Danfoss iC7 Motion Series Application Manual page 119

Application Guide | iC7 Series Motion
Default Value: 100
Unit: %
P 2.3.3.8 Undervoltage Control Activation Level
Description: Set the level at which undervoltage control is activated.
Default Value: 100
Unit: V
P 2.3.3.12 Deceleration Time Power Loss
Description: Set the deceleration time from nominal speed to 0 when in power-loss mode.
Default Value: 0.5
Unit: s
Additional Information for Power Loss
6.3.4.6
P 2.3.3.3 Power Loss Response
This parameter sets the reaction of the drive when the drive has insufficient supply voltage (DC-link voltage). Insufficient voltage is
detected when the actual voltage falls below the undervoltage limit.
Table 40: Selection Descriptions
Selection name
None
Undervoltage control
Controlled Ramp Down
Coast
P 2.3.3.4 Power Recovery Response
Sets the reaction of the drive when the supply voltage (DC-link voltage) returns after a power loss event. The reaction occurs when the
actual voltage returns and exceeds the undervoltage limit.
© 2023.11
Parameter Type: Range (0 — 10000)
Data Type: REAL
Parameter Type: Range (\* — \*)
Data Type: REAL
Parameter Type: Range (0.02 — 10000)
Data Type: REAL
Selection description
During a power loss scenario, the drive takes no action. The undervoltage controlled is disabled.
• When the voltage falls below the undervoltage level, the undervoltage controller is activated.
• The controller decelerates the motor speed to regenerate energy to DC-link.
• Use this selection for system module drives.
When the voltage falls below the undervoltage level, the drive stops by ramping the motor speed
to zero before stopping modulation.
When the voltage falls below the undervoltage level, the drive immediately stops modulating.
Parameter Number: 1808
Access Type: Read/Write
Parameter Number: 1817
Access Type: Read/Write
Parameter Number: 1139
Access Type: Read/Write
AB318753549016en-000301 / 136R0284 |
117