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Kriwan 22A263S80 INT69 TM2 Diagnose
The motor protector INT69 TM2 Diagnose is a further development of the reliable KRIWAN motor protectors.
Its supplementary flexible-response protective functions help to improve the availability and extend the service life of a refrigeration system.
The INT69 TM2 Diagnose automatically saves operational and error data in a non-volatile memory.
This data can be retrieved on a PC and analysed for diagnosis.
The full scope of the diagnosis is achieved by using a KRIWAN-specific AMS sensor.
This motor protector is mainly employed on compressors which are qualified acc. to IEC/EN 60335.
Functional Description
The temperature monitoring of the motor winding is done with two evaluation processes:
1) Static: Switch-off is immediate if the nominal response temperature of the built-in AMS or PTC sensors is reached.
2) Dynamic: If the temperature increases unusually quickly, the motor is switched off immediately even if the temperature is still far below the nominal response temperature. This prevents excess temperatures from occurring.
A short circuit at an AMS or PTC input also leads to a switch-off.
After expiration of the reset delay and elimination of the error or cooldown, the compressor can be restarted.
The temperature monitoring of the motor winding is done with two evaluation processes:
1) Static: Switch-off is immediate if the nominal response temperature of the built-in AMS or PTC sensors is reached.
2) Dynamic: If the temperature increases unusually quickly, the motor is switched off immediately even if the temperature is still far below the nominal response temperature. This prevents excess temperatures from occurring.
A short circuit at an AMS or PTC input also leads to a switch-off.
After expiration of the reset delay and elimination of the error or cooldown, the compressor can be restarted.
Replaces & Substitutes The Following Motor Protector
Kriwan 22A263 TM2 Diagnose
Kriwan 22A263 TM2 Diagnose
| Temperature measuring circuits | |
| - Type | 1-2 AMS sensors in series alternative 1-9 PTC sensors acc. to DIN 44081, DIN 44082 in series |
| - R25,total | <1.8KΩ |
| - Rtrip, static | 4.5KΩ ± 20% |
| - Rreset | 2.75kΩ ±20% |
| - Max. length connection line | 30m |
| Short circuit monitoring system PTC | Typically <30Ω |
|
Reset delay |
- Motor temperature static - 5min  ± 1 min - Motor temperature dynamic - 5min  ± 1 min |
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Kriwan 22A263S80
Kriwan 22A278S30 INT369 KA Diagnose
Application
The motor protector 22A278S30 KA Diagnose is a further development of the reliable KRIWAN motor protectors.
The 22A278S30 INT369 KA Diagnose automatically saves operational and error data in a non-volatile memory. This data can be retrieved on a PC and analyzed for diagnosis.
This motor protector is mainly employed on compressors of which the PTC sensors in the motor winding are led out individually.
Functional description
The temperature monitoring of the motor winding is done with two evaluation processes:
1) Static: Switch-off is immediate if the nominal response temperature of the built-in PTC sensors is reached.
2) Dynamic: If the temperature increases unusually quickly, the motor is switched off immediately even if the temperature is still far below
the nominal response temperature. This prevents excess temperatures from occurring.
The 22A278S30 INT369 KA Diagnose monitors the applied module supply voltage and switches off as soon as it drops below a fixed specified limit value.
After expiration of the reset delay and elimination of the error, the compressor can be restarted.
An active reset delay can be reset only by briefly connecting the terminals "X" and "C".
The built-in LED signals the current status of the motor protector
The temperature monitoring of the motor winding is done with two evaluation processes:
1) Static: Switch-off is immediate if the nominal response temperature of the built-in PTC sensors is reached.
2) Dynamic: If the temperature increases unusually quickly, the motor is switched off immediately even if the temperature is still far below
the nominal response temperature. This prevents excess temperatures from occurring.
The 22A278S30 INT369 KA Diagnose monitors the applied module supply voltage and switches off as soon as it drops below a fixed specified limit value.
After expiration of the reset delay and elimination of the error, the compressor can be restarted.
An active reset delay can be reset only by briefly connecting the terminals "X" and "C".
The built-in LED signals the current status of the motor protector
Replaces & Substitutes The Following Motor Protectors:
The Kriwan 22A278S30 could be used to replace the Johnson Controls MP50-9203 (025-29939-000) motor protector.
But a transformer must be used for making 24VAC to 230VAC.
The Johnson Controls motor protector is 24VAC 60Hz
The Kriwan 22A278S30 could be used to replace the Johnson Controls MP50-9203 (025-29939-000) motor protector.
But a transformer must be used for making 24VAC to 230VAC.
The Johnson Controls motor protector is 24VAC 60Hz
| Temperature measuring circuits | |
| - Type | 3 separate inputs for PTC sensors acc. to DIN 44081, DIN 44082 |
| - Rtrip, static | 13KΩ ± 3KΩ |
| - Rreset | 3.25kΩ ± 0.5KΩ |
| - Max. length connection line | 30m |
| Reset delay | 2min ± 20s |
| Reset of reset delay | Activation of the reset input only possible if there is no error current |
Kriwan 22A278S30