5-81
5-6 Operation Functions
SYSDRIVE MX2 Series USER'S MANUAL (3G3MX2-Axxxx)
5
Functions
 Ensure that MC3 and MC2 are mechanically interlocked. Otherwise the Inverter may be damaged.
Reference
 If the earth leakage breaker ELB has tripped because of ground fault, etc. the commercial power
supply circuit will not work, either. If backup is necessary, supply power from a commercial power
supply circuit ELBC.
 For FWY, RVY, and CSY, use low-voltage relays. Refer to the above sequence for timing.
 If an overcurrent trip occurs at frequency matching, extend the setting of Restart Standby Time
b003.
 For the Commercial Switching operation, refer to "Examples of connections and timing of
Commercial Switching operation."
 The system can also be set to automatically restart upon power-on. This does not require the CS
terminal. For details, refer to "Reset (RS)" on page 5-100.
Stabilization Parameter
This function is used for adjustment to reduce motor hunting.
In case of motor hunting, check whether motor capacity H003/H203 and motor pole number
selection H004/H204 match your motor. If they do not, match them. If the motor's primary
resistance is smaller than that of the standard motor, increase the H006/H206 set value
gradually. To run a motor with a capacity larger than the Inverter's rated capacity, reduce the
set value.
Other than this function, the following methods are suggested to reduce hunting:
 Lower the Carrier Frequency (b083). → Refer to "Carrier Frequency" on page 5-51.
 Lower the Output Voltage Gain (A045/A245). → Refer to "Output Voltage Gain" on page 5-72.
Parameter
No.
Function name Data
Default
setting
Unit
H006/H206 Stabilization Parameter 1/2
0. to 255.
Increase/decrease the value if the
motor hunts.
100. −
A045/A245 Output Voltage Gain 1/2
20. to 100.
If hunting occurs, reduce the set
value.
100. %
b083 Carrier Frequency
2.0 to 15.0/2.0 to 10.0
(heavy load/light load)
If hunting occurs, reduce the set
value.
10.0/2.0 kHz
To Next Page
Loading...
Need help?
General