YASKAWA E1000 - Page 213

5.8 L: Protection Functions
Parameter Details
5
YASKAWA ELECTRIC SIEP C710616 35D YASKAWA AC Drive E1000 Technical Manual 213
If the NTC input signal using the drive multi-function analog input terminal exceeds the overheat alarm level set to L1-
16, then oH5 will flash on the digital operator screen. The drive will respond to the alarm according to the setting of L1-
20 (default setting is to continue operation when an oH5 alarm occurs).
Figure 5.64 shows a circuit using the NTC thermistor and the terminal resistance values. Set DIP switch S1 on the drive
to "V" for voltage input when wiring the NTC thermistor input to terminal A2 on the drive.
Note: This example assumes that H3-10 = 17, H3-09 = 10, and DIP switch S1 has been set for voltage input.
Figure 5.64
Figure 5.64 Motor Protection Circuit using NTC Input
Figure 5.65
Figure 5.65 Temperature and Resistance of NTC Thermistor
L1-15 to L1-20 can determine the overheat protection settings using the NTC thermistor input. Parameter descriptions
are listed below.
Note: L1-15 to L1-20 are available in models CIMR-E4A0930 and 4A1200.
■ L1-15: Motor 1 Thermistor Selection (NTC)
Note: This parameter is available in models CIMR-E4A0930 and 4A1200.
Setting 0: Disable
Setting 1: Enable
■ L1-16: Motor 1 Overheat Temperature
Sets the temperature that will trigger an overheat fault (oH5) for motor 1.
Note: This parameter is available in models CIMR-E4A0930 and 4A1200.
No. Name Setting Range Default
L1-15 Motor 1 Thermistor Selection (NTC) 0, 1 0
No. Name Setting Range Default
L1-16 Motor 1 Overheat Temperature
50 to 200°C
120
+V
(+10.5 V, 20 mA)
Voltage Divider
2 kΩ
NTC Thermistor
A2 (0-10 V)
DIP Switch S1
AC
VI
Drive
common_TMonly
0
5,000
10,000
15,000
10677
2733
716
20,000
25,000
-50 0 50 100 150
Temperature (°C)
Resistance (Ω)
common_TMonly
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