CHAPTER 12: GROUPS 4, 5 AND 6—SET LIMITS AND RELAYS

GROUP 5: FUNCTIONS 0–7—LM1/LM2 SET LIMITS

Table 12–5: Group 5: Functions 0–7

LM1

LM2

 

 

SWITCH 1

 

 

 

SWITCH 2

 

SWITCH 3

 

VALUE

LED

LED

 

ABOVE/BELOW

 

 

 

RELAY 1

 

RELAY 2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ON

OFF

Digit Up-trigger above value

 

Digit Up-enabled

Digit Up-enabled

 

0-9999

Digit Down-trigger below value

 

Digit Down-disabled

Digit Down-disabled

 

0-9999

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

OFF

ON

Digit Up-trigger above value

 

Digit Up-enabled

Digit Up-enabled

 

0-9999

Digit Down-trigger below value

 

Digit Down-disabled

Digit Down-disabled

 

0-9999

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Table 12–6: Group 5: Example for Function 0

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

LM1

 

LM2

SWITCH 1

 

SWITCH 2

 

SWITCH 3

 

VALUE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ON

 

OFF

Digit Up

 

 

Digit Up

 

Digit Down

0120

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

OFF

 

ON

Digit Down

 

 

Digit Down

 

Digit Up

0090

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Thus, if Kilowatts exceed 120 W, LM1 is triggered and Relay 1 is tripped.

If the Kilowatts fall below 90 W, LM2 is triggered and Relay 2 is tripped.

Special Cases

FREQUENCY: FUNCTION 4 contains a permanent decimal after the second digit. The highest and lowest level limits that can be programmed are 99.99 and 00.00, respectively.

POWER FACTOR: FUNCTIONS 3 and 6 contain a permanent decimal after the first digit.

The highest and lowest limits that can be programmed are 1.000 and 0.000, respectively.

EPM 5300 SERIES ADVANCED POWER METERS – INSTRUCTION MANUAL

12–95

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GE EPM 5350, EPM 5200, EPM 5300 Special Cases, Group 5 Functions, Group 5 Example for Function, Digit Up Digit Down 0120