SOLARDRIVE
PLUS
PROGRAMMING
GUIDE
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107
2.6.7.
Autoreset Menu
2.6.7.1. Overview
The Autoreset function can be enabled in case an alarm trips. You can enter the maximum number of
autoreset attempts and the time required for resetting the attempt number. If the Autoreset function is
disabled, you can program an autoreset procedure at power on, which resets an active alarm when the drive
is shut off. Undervoltage alarms or mains loss alarms can be saved in the fault list in the Autoreset Menu.
To activate the Autoreset function, set a number of attempts other than zero in parameter
C255
. When the
number of reset attempts is the same as the value set in
C255
, the autoreset function is disabled. It will be
enabled again only when a time equal to or longer than the time set in
C256
has passed.
If the drive is turned off when an alarm is active, the alarm tripped is stored to memory and will be active at
next power on. Regardless of the Autoreset function setup, an automatic reset of the last alarm stored can be
obtained when the drive is next turned on (
C257
[Yes]). Undervoltage alarm
A047
(DC bus voltage below
allowable threshold with motor running) or Mains Loss alarm
A064
(mains loss when the motor is running
and the Power Down function is disabled) are not stored in the fault list when the drive is powered off
(factory-setting). To enable parameter storage, set
C258
to [Yes].
The Solardrive Plus is factory-set to alarm autoreset functionality (when an alarm trips, it is automatically
reset when the alarm reset conditions occur). When the alarm is reset, the motor starts after a timeout set in
P802
(see section 2.6.11).
2.6.7.2. List of Parameters C255 to C258
Parameter
FUNCTION
User Level
Default Value
MODBUS
Address
C255
Autoreset attempt number
ENGINEERING
4
1255
C256
Attempt counting reset time
ENGINEERING
300 sec
1256
C257
Alarm reset at Power On
ENGINEERING
1: [Yes]
1257
C258
Enable Undervoltage and Mains Loss alarms
ENGINEERING
0: [Disabled]
1258
C255
Autoreset Attempt Number
Range
0 ÷ 100
0 ÷ 100
Default
4
4
Level
ENGINEERING
Address
1255
Function
If set other than 0, this parameter enables the Autoreset function and sets the max. allowable number
of reset attempts. The autoreset attempt count is reset when a time equal to the time set in
C256
passes starting from the last alarm tripped.
C256
Attempt Counting Reset Time
Range
0; 1000
0; 1000 sec
Default
300
300 sec
Level
ENGINEERING
Address
1256
Function
Determines the time that passes from the last alarm tripped to reset the autoreset attempt number.
