nader NDW3 Series Manual page 23

3.3 Controller Panel Description
■ NWK21/NWK31 Controller
NWK21/ NWK31 Controller Panel Description
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Note: 1. Dot box is the controller with a voltage displaying function, and it is not displayed if there is no such voltage
displaying function;
2. Tx, Rx is only used for internal testing in the company.
Internal & confidential file
文件编号:NDT2920213
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第 23 页 共 149 页
1. Rated current sign
2. N-phase and A, B, C phases voltage indicators in
order
3. Three-phase voltage and frequency value
display screen
4. Three-phase current, N-phase current indicators
5. Three-phase electric current display screen
6. Load monitoring signals 1 and 2 operation
indicators
7. Long time delay and short time delay
protection operation indicators
8. Setup, query indicators
9. 5 operation buttons
10. Unused temporarily
11. Test, storage indicators
12. Instantaneous, N-phase current or self-
diagnosis operation indicators
13. Unbalance, ground current protection
operation indicators
14. Unbalance rate, current, time and I2t (inverse
time limit) indicators in order
15. Frequency, power, voltage and power factor
indicators in order
16. Rx, Tx, fault and alarm indicators in order
文件版本:17