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L1-03 Motor Overheat Alarm Operation Selection
Setting
0
Ramp to Stop
1
Coast to Stop
2
Fast-Stop
3
Alarm Only (factory default)
L1-04 Motor Overheat Fault Operation Selection
Setting
0
Ramp to Stop
1
Coast to Stop (factory default)
2
Fast-Stop
L1-05 Motor Temperature Input Filter Time
Setting Range:
0.00 to 10.00 Seconds
Factory Default: 0.20 Seconds
The Drive can be programmed to accept a PTC (Positive Temperature Coefficient) Thermistor input for monitoring motor
temperature. By setting parameter H3-09= "E: Motor Temperature", and attaching the PTC thermistor per the figure below,
the Drive can react to the increasing motor winding temperature with both an alarm (L1-03) and a fault (L1-04).
A typical PTC Thermistor characteristic shown on the following page.
Description
Description
Branch resistance
*1
18 k Ω
PTC Thermistor
The resistance value of 18 k Ω is only valid for
*1
using a 3-phase PTC with the characteristics shown in
the figure below.
on following page.
Programming 101
+V
(+15 V, 20 mA)
A2
(0-10 Vdc)
AC
Fig. 73
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