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KRSD series
INTERFACE
NEUTRAL
LOW TEMP
PROTECT
-020
℃
(-4 ˚F)
If temperature is lower than the set value, the compressor
will not start, reporting temperature is too low.
START
PASSWORD
0000
The controller will start the compressor only by entering
this password. When set to 0000 no password is required.
5.3. Technical Parameters and functions
1. Digital input/output: 9 Digital inputs; 10 digital relay outputs.;
2. Analog inputs: (2) PT100 temperature sensor inputs, (2) 4
～
20mA; two groups of three phase
current inputs (CT)
；
3. Input voltage: three phase, 460V/220V
；
4. Controller power supply: 220V, 50/60Hz, 12VS (20VA recommended)
；
5. Measurement range displayed:
Oil temperature: -20
～
150
℃
(-58
～
302
℉
); accuracy: ±1
℃
.
Air temperature: -20
～
150
℃
(-58
～
302
℉
)
；
accuracy: ±1
℃
.
Running time: 0
～
999999 hours.
Current: 0
～
999.9 A.
Pressure: 0
～
1.60MPa (0
～
232 Psi). Accuracy: 0.01Mpa.
6. Phase-sequence protection: Response time ≤2s.
7. Motor protection: This controller has five basic protection functions for main and fan motors:
Block protection: When current reaches from 4 to 8 times the set current after finishing
starting, response time ≤0.2s.
Short circuit protection: When current reaches above 8 times the set current, response
time ≤0.2s.
Phase loss protection: In case of any phase loss, operation time equals set time.
Unbalance protection: When current difference of any two phase reach the set value,
operation time equals set time.
Overload protection: Operates with a time delay according to overload factors and
operation time shown in the following table:
