Delta VFD-EL-W Series - Page 119

Chapter 4 Parameters｜VFD-EL-W
114
550
1330
temperature ( )℃
resistor value ( )Ω
Tr
Tr-5℃ Tr+5℃
Refer to the following calculation when Pr.07.14 is set to 2.4 and motor temperature
overheating protection level is 1330 Ω:
1330//47000 = (1330 × 47000) ÷ (1330 + 47000) = 1293.4
10.5 × 1293.4 ÷ (4400 + 1293.4) = 2.38 (V) ≒ 2.4 (V)
07.15
Motor PTC Overheating Warning Level
Default: 1.2
Settings
0.1–10.0 V
07.16
Motor PTC Overheating Warning Reset Level
Default: 0.6
Settings
0.1–5.0 V
07.17
Motor PTC Overheating Action
Default: 0
Settings
0: Warn and ramp to stop
1: Warn and coast to stop
2: Warn and continue operation
 If the temperature reaches the motor PTC Overheat Warning Level (Pr.07.15), the drive acts
according to Pr.07.17 and displays PtC2 ( ) on the digital keypad. If the temperature
decreases below the result of (Pr.07.15 minus Pr.07.16), the warning message disappears.
07.13
Motor PTC Overheating Protection Input Filter Time
Default: 100
Settings
0–9999 (unit: 2ms)