Daikin ACS320 User Manual

Stall Protection
The drive protects the motor in a stall situation. It is possible to
adjust the supervision limits (frequency, time) and choose how
the drive reacts to the motor stall condition (alarm indication /
fault indication & drive stop / no reaction).
Settings
Parameters 3010…3012, page 53
Earth Fault Protection
The Earth Fault Protection detects earth faults in the motor or
motor cable. The protection is active only during start.
An earth fault in the input power line does not activate the
protection.
Settings
Parameter 3017 EARTH FAULT, page 53
Incorrect Wiring
Denes the operation when incorrect input power cable
connection is detected.
Settings
Parameter 3023 WIRING FAULT, page 53
Preprogrammed faults
Overcurrent
The overcurrent trip limit for the drive is 325% of the drive
nominal current.
DC Overvoltage
The DC overvoltage trip limit is 420 V (for 200 V drives) and
840 V (for 400 V drives).
DC Undervoltage
The DC undervoltage trip limit is adaptive. See parameter 2006
UNDERVOLT CTRL, page 48.
Drive Temperature
The drive supervises the IGBT temperature. There are two
supervision limits: Alarm limit and fault trip limit.
Short Circuit
If a short circuit occurs, the drive will not start and a fault
indication is given.
Internal Fault
If the drive detects an internal fault, the drive is stopped and a
fault indication is given.
Supply Phase Loss
If the drive detects supply phase loss (excessive DC voltage
ripple), the drive is stopped and a fault indication is given.
Operation Limits
The drive has adjustable limits for output frequency, current
(maximum) and DC voltage.
Settings
Parameter Group 20: Limits, page 48
Power Limit
Power limitation is used to protect the input bridge and the
DC intermediate circuit. If the maximum allowed power is
exceeded, the drive torque is automatically limited. Maximum
overload and continuous power limits depend on the drive
hardware. For specic values, see chapter Technical data on
page 102
.
Automatic Resets
The drive can automatically reset itself after overcurrent,
overvoltage, undervoltage, external and “analog input below a
minimum” faults. The Automatic Resets must be activated by
the user.
Table 14: Automatic Resets Settings
Table 15: Automatic Resets Diagnostics
Parameter Additional Information
Group 31: Automatic Reset Automatic reset settings
Alarm Additional Information
AUTORESET Automatic reset alarm
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program feaTures

Daikin ACS320 Specifications

General

Brand	Daikin
Model	ACS320
Category	Controller
Language	English