69
13.
13.
13.
13. Setpoint
Setpoint
Setpoint
Setpoint Alarm
Alarm
Alarm
Alarm
1
1
1
13
3
3
3.1
.1
.1
.1 General
General
General
General Description
Description
Description
Description
PMAC770 provides setpoint alarm for all parameters. It supports monitor 2
parameters at the same time.
There are 2 setpoint types: Over-limit and Under-limit. Users can set the limit as per
requirement.
13.2
13.2
13.2
13.2 Setpoint
Setpoint
Setpoint
Setpoint Object
Object
Object
Object
PMAC770 can monitor 27 kinds of parameters, as below:
Object
Object
Object
Object
Param
Param
Param
Parame
e
e
eter
ter
ter
ter
Voltage
Va, Vb, Vc, neutral voltage, average phase voltage,
Vab, Vbc, Vca, average line voltage
Current
Ia, Ib, Ic, neutral current, average current
Power factor
PFa, PFb, PFc, PFtot
Frequency
Frequency
Power quality
Voltage unbalance,
Phase A voltage THD
Phase B voltage THD
Phase C voltage THD
Phase A current THD
Phase B current THD
Phase C current THD
Null
No object
HRW Limited
Ph +852 2546 7402 - Fax +852 2546 7403 - [email protected] - www.hrw.hk