ACH550-UH User’s Manual 109
Start-Up
5 = THERMISTOR (0) – Sensor configuration uses a thermistor.
• Motor thermal protection is activated through a digital input. Connect either a PTC sensor or a normally closed
thermistor relay to a digital input. The drive reads the digital input states as shown in the above table.
• When the digital input is ‘0’ the motor is overheated.
• See the figures in the introduction to this Group.
6 =
THERMISTOR (1) – Sensor configuration uses a thermistor.
• Motor thermal protection is activated through a digital input. Connect a normally open thermistor relay to a digital
input. The drive reads the digital input states as shown in the above table.
• When the digital input is ‘1’ the motor is overheated.
See the figures in the introduction to this Group.
3502 INPUT SELECTION 1…8 1 1
Defines the input used for the temperature sensor.
1 =
AI1 – PT100 and PTC.
2 =
AI2 – PT100 and PTC.
3…8 =
DI1…DI6 – Thermistor
3503 ALARM LIMIT -10...200 °C / 1 110 °C /
0...5000 Ohm / 1500 Ohm /
0…1 0
Defines the alarm limit for motor temperature measurement.
• At motor temperatures above this limit, the drive displays an alarm (2010,
MOTOR OVERTEMP)
For thermistors:
0 = de-activated
1 = activated
3504 FAULT LIMIT -10...200 °C / 1 130 °C /
0...5000 Ohm / 4000 Ohm /
0…1 0
Defines the fault limit for motor temperature measurement.
• At motor temperatures above this limit, the drive displays a fault (9,
MOTOR OVERTEMP) and stops the drive.
For thermistors:
0 = de-activated
1 = activated
Group 35: Motor Temp Meas
Code Description Range Resolution Default S