ABB ACS320 - Page 207

Actual signals and parameters 207
3016
SUPPLY PHASE
Selects how the drive reacts to a supply phase loss, in other words, when the DC
voltage ripple is excessive.
0 = FAULT – Drive trips on fault SUPPLY PHASE and the motor coasts to stop when
the DC voltage ripple exceeds 14% of the nominal DC voltage.
1 = LIMIT/ALARM – Drive output current is limited and alarm INPUT PHASE LOSS is
generated when the DC voltage ripple exceeds 14% of the nominal DC voltage.
There is a 10 s delay between the activation of the alarm and the output current
limitation. The current is limited until the DC voltage ripple drops under the ripple
limit.
2 = ALARM – Drive generates alarm INPUT PHASE LOSS when the DC ripple
exceeds 14% of the nominal DC voltage.
3017
EARTH FAULT
0…1 1 1
Defines the drive response if the drive detects a ground fault in the motor or motor
cables. The drive monitors for ground faults while the drive is running, and while the
drive is not running. Also see parameter 3023 WIRING FAULT.
0 = DISABLE – No drive response to ground faults.
1 = ENABLE – Ground faults display fault 0016 EARTH FAULT, and (if running) the
drive coasts to stop.
3018
COMM FAULT FUNC
0…3 1 0
Defines the drive response if the fieldbus communication is lost. The time delay is
defined by parameter 3019 COMM FAULT TIME.
0 = NOT SEL – No response.
1 = FAULT – Displays fault 0028 SERIAL 1 ERR and the drive coasts to stop.
2 = CONST SP 7 – Displays warning 2005 IO COMM and sets speed using parameter
1208 CONST SPEED 7. This “alarm speed” remains active until the fieldbus
writes a new reference value.
3 = LAST SPEED – Displays warning 2005 IO COMM and sets speed using the last
operating level. This value is the average speed over the last 10 seconds. This
“alarm speed” remains active until the fieldbus writes a new reference value.
WARNING! If you select CONST SP7, or LAST SPEED, make sure that
continued operation is safe when fieldbus communication is lost.
3019
COMM FAULT TIME
0.0 … 600.0 s 0.1 s 10.0 s
Sets the communication fault time used with parameter 3018 COMM FAULT FUNC.
• Brief interruptions in the fieldbus communication are not treated as faults if they are
less than the COMM FAULT TIME value.
3021
AI1 FAULT LIMIT
0.0 … 100.0% 0.1% 0.0%
Sets a fault level for analog input 1. See parameter 3001 AI<MIN FUNCTION.
Do not set this limit below the level defined by parameter 1301 MINIMUM AI1.
• Value in percent of the full signal range.
3022
AI2 FAULT LIMIT
0.0 … 100.0% 0.1% 0.0%
Sets a fault level for analog input 2. See parameter 3001 AI<MIN FUNCTION.
Do not set this limit below the level defined by parameter 1304 MINIMUM AI2.
• Value in percent of the full signal range.
Group 30: Fault functions
Code Description Range Resolution Default S