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12–94 EPM 5300 SERIES ADVANCED POWER METERS – INSTRUCTION MANUAL
GROUP 5: FUNCTIONS 0–7—LM1/LM2 SET LIMITS CHAPTER 12: GROUPS 4, 5 AND 6—SET LIMITS AND RELAYS
12.5 Group 5: Functions 0–7—LM1/LM2 Set Limits
GROUP 5 contains LM1 and LM2 set limit values for all power functions. This allows the user
to program limits for the following functions: Kilowatt, Kilovar, Kilovolt-ampere, Power
Factor, Frequency, negative Kilovar, negative Power Factor, and negative Kilowatt.
There are 3 switches to set with limits:
1. Switch 1: Sets the limit to trip either above or below the Limit Value.
2. Switch 2: Sets whether Relay 1 will trip when the condition occurs.
3. Switch 3 :Sets whether Relay 2 will trip when the condition occurs.
After the switches are set, the limit value should be programmed (see table in section 12.4).
MAX/MIN
LIMITS
KVAR
PF
KW
KVA
FREQ
KWH
KVAH
AC VOLTS
AC AMPS
POWER
NC
B
A
MAX
MIN
A
N
B
N
C
N
A
B
B
C
C
A
LM2
LM1
NEXT
PHASE
VOLTS
AMPS
POWER
USE VOLTS TO
TOGGLE BETWEEN
LM1 AND LM2.
THE LIMIT VALUE
SINCE THIS IS GROUP 5, FUNCTION 0,
FROM LEFT TO RIGHT: SET LIMIT
AND TRIP RELAY 2
THE KW ANNUNCIATOR
ABOVE/BELO W , TRIP RELAY 1
GLOWS
Table 12–4: Group 5 Programming Format for Limit Condition
Group and Function Number Function
50. LM1/LM2 Set Limits for Kilowatt
51. LM1/LM2 Set Limits for Kilovar
52. LM1/LM2 Set Limits for Kilovolt-ampere
53. LM1/LM2 Set Limits for Power Factor
54. LM1/LM2 Set Limits for Frequency
55. LM1/LM2 Set Limits for Negative Kilovar
56. LM1/LM2 Set Limits Negative Power Factor
57. LM1/LM2 Set Limits for Negative Kilowatt
5E. Exit Programming GROUP 5