SV-iS7 User Manual - Inverter Drive Supermarket

10.1.12 Speed variation failure
This function is active when the control mode(DRV-09 Control Mode) is Vector.
Group Code No. Function Display Setting Display Unit
PRT
73 Speed Dev Trip 1 Yes -
74 Speed Dev Band - 20.00 Hz
75 Speed Dev Time - 1.0 Sec
Chapter 10 Protective Functions
The inverter output is blocked when the motor rotates for the Speed Dev Time set at faster than the speed
variation(Speed Dev Band).
10.1.13 Speed sensor error detection
It can be detected whether the encoder option card is mounted on the inverter main body. With the encoder mounted,
an error is detected too when the encoder signal of the line drive method is a single line. In case of an error, a
message reading Encoder Trip is displayed.
Group Code No. Function Display Setting Display Unit
PRT
77 Enc Wire Check 1 Yes -
78 Enc Check Time - 1.0 sec
10.1.14 Fan failure detection
Group Code No. Function Display Setting Display Unit
PRT 79 FAN Trip Mode 0 Trip -
OUT
31~32 Relay 1,2 8 FAN Trip -
33 Q1 Define
If the cooling fan failure mode is set at No. 0 Trip and if a problem with the cooling fan is detected, the inverter output is
blocked and the fan failure is displayed. If you set at No. 1 Warning and select No. 8 FAN Warning as the multi-function
output terminal or relay, the fan failure signal is released and operation continues, However, if the temperature within
the inverter rises above a certain degree, the output is blocked due to overheat of the cooling fan and so on.
10.1.15 Selection of action in case of low voltage failure
Group Code No. Function Display Setting Display Unit
PRT 81 LVT Delay - 0.0 sec
OUT
31~32 Relay 1,2 11 Low Voltage -
33 Q1 Define
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