E6581386
F-56
6
6.26.21 Motor PTC thermal protection
: PTC thermal selection
: PTC detection resistor value
• Function
This function is used to protect motor from overheating using the signal of PTC built-in motor.
The trip display is “OH2”.
[Parameter setting]
Title Function Adjustment range Default setting
PTC thermal selection
: Disabled
: Enabled (trip mode)
: Enabled (alarm mode)
PTC detection resistor value ~
[Connection]
6.33.24
Protection against a failure of the control power backup device (optional CPS002Z)
: Control power supply backup option failure monitoring
• Function
If the control power backup device (optional CPS002Z) fails to supply power for some reason or other, the
inverter will put out an alarm signal or a trip signal, depending on the setting of this parameter.
Leaving this parameter disabled may cause the main power supply to be turned on and off endlessly if
something unusual occurs, depending on your sequence etc., so you should set this parameter properly
when using the optional power backup device.
Title Function Adjustment range Default setting
Control power supply backup
option failure monitoring
: Control power supply not backed up
: Control power supply backed up
(alarm in the event of a failure)
: Control power supply backed up
(tripping in the event of a failure)
PP
P10V
RR/S4
CC
AI [Voltage]
Outer
resistor
PTC
Connect the resistor rated 1/4 watts 3.3k
ohm between terminal PP and RR/S4.
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