Daikin ACS320 - Group 20: Limits

Group 20: Limits
This group denes minimum and maximum limits to follow in driving the motor – speed, frequency, current, torque, etc.
Table 32: Group 20: Limits
Code Description Range Resolution Default S
2003 MAX CURRENT 0.0… 1.1 * I
2N
0.1 A 1.1 * I
2N

Denes the maximum output current (A) supplied by the drive to the motor.
2006 UNDERVOLT CTRL 0…2 1 1
Sets the DC undervoltage controller on or off. When on:
• If the DC bus voltage drops due to loss of input power, the undervoltage controller decreases the motor speed in order to keep
the DC bus voltage above the lower
• When the motor speed decreases, the inertia of the load causes regeneration back into the drive, keeping the DC bus charged, and
preventing an undervoltage trip.
• The DC undervoltage controller increases power loss ride-through on systems with a high inertia, such as a centrifuge or a fan.
0 = DISABLE – Disables controller.
1 = ENABLE (TIME) – Enables controller with 500 ms time limit for operation.
2 = ENABLE – Enables controlled without maximum time limit for operation.
2007 MINIMUM FREQ
-500.0…
500.0 Hz
0.1 Hz 0.0 Hz

Denes the minimum limit for the drive output frequency.
• A positive or zero minimum speed frequency denes two ranges, one positive and one negative.
• A negative minimum speed frequency denes one speed range. See gure.
Note! Keep MINIMUM FREQ ≤ MAXIMUM FREQ.
2008 MAXIMUM FREQ
0.0…500.0
Hz
0.1 Hz 60.0 Hz (US)

Denes the maximum limit for the drive output frequency.
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