ABB ACH550-02-602A-4 [268/454] Parameter listing and descriptions

ABB ACH550-02-645A-4 [268/454] Parameter listing and descriptions
264 Parameter listing and descriptions
ACH550-02 User's Manual
5 = THERM(0) – Sensor configuration uses a thermistor.
Motor thermal protection is activated through a digital input. Connect
either a normally closed thermistor relay or a PTC sensor to a digital
input.
• When the digital input is ‘0’, the motor is overheated.
• See the connection figures on page 262.
• The table below and the graph on page 263 show the resistance
requirements for a PTC sensor connected between 24 V and digital
input as a function of the motor operating temperature.
6 =
THERM(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.
• When the digital input is ‘1’, the motor is overheated.
• See the connection figures on page 262.
3502 INPUT SELECTION 1…8
Defines the input used for the temperature sensor.
1 =
AI1 – PT100 and PTC
2 =
AI2 – PT100 and PTC
3…8 =
DI1…DI6 – Thermistor and PTC.
3503 ALARM LIMIT -10…200 °C
Defines the alarm limit for 0…5000 ohm
the motor temperature measurement. 0…1
At motor temperatures above this limit, the drive displays an alarm
(2010,
MOTOR TEMP)
For thermistors or PTC connected to digital input:
0 – De-activated.
1 – Activated.
3504 FAULT LIMIT -10…200 °C
Defines the fault limit for 0…5000 ohm
the motor temperature measurement. 0…1
At motor temperatures above this limit, the drive displays a fault (9,
MOT OVERTEMP) and stops the drive.
For thermistors or PTC connected to digital input:
0 – De-activated.
1 – Activated.
Code Description Range
Temperature Resistance
Normal < 3 kohm
Excessive > 28 kohm

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