Vacon Plc
Phone: +358-201 2121
Fax:+358-201 212 205
Service: +358-40-8371 150
E-mail: [email protected]
E-mail: [email protected]
Vacon
Page 43
Pump control with autochange
Figure 6-24 Counting the under-
load time.
7. 18
Phase supervision of the supply voltage
0 = No action
2 = Fault
By setting the parameter value to zero the phase supervision of the supply voltage
will not cause tripping.
7. 19
Termistor input of IO-Expander
0 = No action
1 = Warning
2 = Fault
The termistors connected to the termistor input of the I/O-expander board supervise
the temperature of the motor. With parameter 7.19 the response of the frequency
converter when the termistors indicate about overtemperature can be programmed.
7.20
Fieldbus fault
0 = No action
1 = Warning
2 = Fault
8. 1
Automatic restart: number of tries
8. 2
Automatic restart: trial time
The Automatic restart function restarts the frequency converter after the faults
selected with parameters 8
.
4—8
.
8. The Start function for Automatic restart is
selected with parameter 8
.
3.
Parameter 8
.
1 determines how many automatic restarts can be made during the
trial time set by the parameter 8
.
2.
The time counting starts from the first autorestart. If the number of restarts does
not exceed the value of the parameter 8.1 during the trial time, the counting is cleared
after the time is elapsed and next fault starts the counting again. See figure 6-25.
If the automatic restart trial time is 0s, the automatic restart is not used.
Par. 7
.
17
UMCH7_17
Trip area
Time
Underload time counter
Underl.
No underl.
Trip/warning
par. 7
.
14