E6581611
F-113
6
6.29.16 Motor PTC thermal protection
f147 : Logic input / PTC input selection (S3)
f645 : PTC thermal selection
f646 : Resistor value for PTC detection
Function
This function is used to protect motor from overheating using the signal of PTC built-in motor.
The trip display is “
e-32”.
[Parameter setting]
Title Function Adjustment range Default setting
f147
Logic input / PTC input selection (S3)
0: Logic input
1: PTC input
0
f645
PTC thermal selection
1: Tripping
2: Alarm only
1
f646
PTC detection resistor value
100-9999 (Ω)
3000
Note : Protecting PTC thermal, set f147=1 (PTC input) and slide switch SW2 to PTC side.
● Tripping level is defined by f646 setting. Alarm level is defined by 60% of f646 setting.
● Connect the PTC between S3 and CC terminals.
Detection temperature can be set by
f646 setting.
[Connection]
● Output of PTC input alarm signal
The PTC input alarm is assigned to the output terminal.
Setup example) When the PTC input alarm is assigned to the OUT terminal
Title Function Adjustment range Setting
f131
Output terminal selection 2A
(OUT)
0-255
150: PTCA
(PTC input alarm signal)
Setting value 151 is reverse signal.
S3
CC
PTC
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