Siemens 7UG0 User manual

1
s
Operating Instructions
Automatic Power Factor Controller Relay
7UG0572-1GT21
7UG0
IEC 60947-5-1
Please read and understand these instructions before installing,
operating, or maintaining the equipment.
DANGER
Hazardous voltage can cause death or serious injury.
Disconnect power before working on equipment.
CAUTION
Reliable functioning of the equipment is only ensured
with certied components.
Overvoltage category III
(Refer IEC 60947-1)
NOTICE
This product has been designed for environment A. Use of this product
in environment B may cause unwanted electromagnetic disturbances in
which case the user may require to take adequate mitigation measures.
Technical Data
Designation 7UG0572-1GT21
Type Automatic Power Factor Controller
Operating range 50 to 440 VAC (L-L)
30 to 250 VAC (L-N)
AC Network 3Φ4W / 3Φ3W / 2Φ2W/ 1Φ2W
Display parameters Power Factor
Control Supply 90 to 250 VAC, 50/60Hz
Power consumption 15VA
Frequency range 50/60Hz
Operating temperature 0°C to 60°C
Humidity upto 95% ,without moisture
condensation
Alarm mode (relay output) Over voltage, Under voltage, Over
Compensate, Under Compensate, CT
Polarity error
Trip indication Alarm relay turns ON and ALARM
LED blinks
No. of relay outputs 12
(Additional 1 for Alarm)
Rated current of relay outputs
(@250VAC)
5A* (AC12), 1A (AC15)
CT Burden 20 mohms
Switching program Automatic / Linear / Rotational
Mounting Panel mounting
SCPD for relay output (For
Short circuit current of 1kA as
per IEC 60947-5-1)
6A, gL, HRC fuse
* 5A AC12 rating is for individual relay contact. If multiple relays are ON,
relay AC12 rating will be limited to 1.2A @ 250V.
LED Indications
LED Description
Capacitor Banksthat areON.
Indicates controller is in AUTO mode.
Indicates controller is in MANUAL mode.
No fault condition present.
Fault condition occurred
[Press OK key to display trip parameter]
This will take place when user will press OK key in
fault condition. Trip parameters will be displayedfor
3sec each.
AUTO
AUTO
ALARM
ALARM
ALARM
Note : On occurrence of any new fault condition ALARM LED starts
blinking again & on pressing OK key all trip parameters will be displayed
for 3sec each

2
Terminal connections
7UG057..
0.5 Nm
Solid
1 x (0.75 to 2.5) mm2
2 x 0.5 to 2 x 1.5 mm2
Stranded with end sleeve
1 x (0.5 to 2.5) mm2
2 x (0.5 to 1.5) mm2
Wiring Diagram
3 Phas e-4Wire
3 Phas e-3Wire
1 Phas e-2Wire
2 Phas e-2Wire
Note :• ForN/W selection 2P2W voltage(V)applied between V1 &V2and connect CT forl1[Do notuse V3,Nl2&l3 terminal]
LL
•ForN/W selection 1P2W voltage(V)applied between V1 &Nand connect CT forl1[Do notuse V2,V3, l2 &l3terminal]
LN
Control Supply
Control Supply
Control Supply
Control Supply
K1
K12
K1
K12
K1
K12
K1
K12
Note: The distance between APFC and external Current transformer should be kept as
short as possible. Use shielded cable or twisted pair cable between APFC and Current
transformer for long distance (Greater than 1m).

3
Front Panel Description
Configuration
Ke y Description
Press&
Press
Press
Press
Press
Press&
For3sec to enteror exit
from theconfiguration menu.
For increment
Fordecrement
To save thesettingand
move on to next page
To go back
For3sectoenter
in Test Mode
Note :Test mode checksall therelayspresent
in productsequentially.
OK
OK
ESC
ESC
Configuration Menu
Main Menu Leve lSub Menu
PRES S + KEY S f or 3 s ec. to enter or exit from conf iguration menu.
Installation
Passw ord
(PW1)
Te chnical
Passw ord
(PW2)
Pass wo rd
Change
Pass word
Ye s / No
Change
Password
Ye s / No
New
Password
New
Password
CT Primary
CT Primary
CT
Secondary
CT
Secondary
Network
Selection
Network
Selection
Phase
Compensation
Phase
Compensation
Nominal
Voltage
Nominal
Voltage
Thresh old
Voltage
Thresh old
Voltage
Auto
Initialization Ma x
Relay No.
Mode Switching
Program
Target
P. F
Step Time Discharge
Time Control
Sensitivity
Setting Low
Current
Setting
Auto
Initialization Max
Relay No.
Mode Switching
Program
Ta rget
P. F
Step Time Discharge
Time Control
Sensitivity
Setting Low
Current
Setting
No Voltage
Over Voltage
Over Voltage
Setting
Under Voltage
Under Voltage
Setting Over
Compensation
Under
Compensation
CT Polarity
Error
Hysteresis
Voltage Hysteresis
Power Factor
Factory
Default
Bank 1
Bank 9
Bank 2
Bank 10
Bank 3
Bank 11
Bank 4
Bank 12
Bank 5
Bank 6
Bank 7
Bank 8
•After entering into PW1, sub menu of LE-1 will be selected.
•To scroll through sub menu press incrementordecrement key.
•After entering into PW2, all levels can be accessed.
•Press ESC Keytochangethe level. Different level can be selected by pressing increment &decrement Key.
NOTE: LE-3 will be prompted only
when mode is settomanualin LE-1.
Note :Appearance of shaded menus dependent on selection of other parameters.
OK
()
Serial Number Description
PressESC ()keyfor 10sec. to display8digitserialnumber.
Example:Sr. No. 12345678
Press
ESC
keyfor 10sec.
Displays 1234 for3sec.
After3sec. displays 5678 for3sec.
ESC
ESC
Note: The distance between APFC and external Current transformer
should be kept as short as possible. Use shielded cable or twisted pair
cable between APFC and Current transformer for long distance (Greater
than 1m).

4
Level1
Displa y Description Default Value Range Condition
PSWD Passward 10(PW1);
11(PW2) 0000 - 9999
C.PWD Change Password No No /Yes
N.PWD NewPassword 00000 to 9999
Thisoption
will be
prompted
only when
C.PWD
settoYES.
CT.P CT Primary 5A
5A
5to 9999A
1to 9999
(CT.S=1)
5to 9999
(CT.S=5)
CT.S CT Secondary 1A /5A
NETW Network Selection 3P4W 1P2W / 2P2W /
3P3W / 3P4W
PCMA Phase
compensation 0º 0º, 90º, 120º,
210º, 240º, 330º
Only for
1P2W /2P2W
VOLT NominalVoltage 240V (L-N)
415V (L-L) 50V-440V
V.TH Voltage Threshold 0% 0% to 100%
A.INT Auto Initialization YesNo /Yes
RLY Max RelayNumbers 12 1to12
MODE Mode Auto
Auto
Auto /MANL
SwitchingProgram
SWPG
Automatic(AUTO)
Linear(LINR)
Rotational (ROTN)
T.PF Targeted P. F1.000-0.800 to 0.800
STP.TStep Time 5s 1s to 999s
1s to 999s
DIS.T Discharge time
(Reconnection time) 180s
60%C.SNS
L.CUR
C/K Setting
LowCurrentSetting 0
55% to 100%
0% to 50%
•Auto-Initialization(A.INT) is workingatbest, under stable load conditions.
Auto-Initialization (A.INT) worksonly with capacitorbanks andnot withreactors.
If V.TH value is settozero, A.IN will be done only at powerON.
(A.INT) will be update 'NO' automaticallyin configue afterAuto
Reauto - Initialization will be donebyonlychanging( A.INT) -YES in configue
Recommended that number of relays nottobechanged during normal operation
If doneso, restartthe unit.
Recommended to restartthe unit if Switching program(SWPG)ischanged
duringnormal operation forproper functionalityi
naccordance withthe chosen
control mode.
•
•
•
•
•
•
Note:
No voltage
Level2
Displa y Description Default Value Range Condition
N.VLT ON
ON
OFF
ON /OFF
ON /OFF
ON /OFF
O.VLT Over voltage
OV.S Over voltagesetting 260V (L-N)
460V (L-L)
50 - 277V (L-N)
85 - 480V (L-L)
This option
will be
prompted
only when
O.VLToption
is ON.
Undervoltage
U.VLT
UV.S Undervoltagesetting 190V (L-N)
340V (L-L)
50 - 240V (L-N)
85 - 415V (L-L)
This option
will be
prompted
only when
U.VLToption
made ON.
O.CMP Over compensation ON
ON
ON
ON /OFF
ON /OFF
ON /OFF
U.CMP Undercompensation
CT.ER CT Polarity error
H.VLT
H.PF
DFLT
Hysteresisvoltage
Hysteresispower factor
Factory Default
2
1
No
1% to 10%
1% to 5%
No /Yes
Level3
Display Description Default Value Range Condition
RL.01
RL.02
RL.03
RL.04
RL.05
RL.06
RL.07
RL.08
RL.09
RL.10
RL.11
RL.12
Bank 1
Bank 2
Bank 3
Bank 4
Bank 5
Bank 6
Bank 7
Bank 8
Bank 9
Bank 10
Bank 11
Bank 12
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
ON/OFF
ON/OFF
ON/OFF
ON/OFF
ON/OFF
ON/OFF
ON/OFF
ON/OFF
ON/OFF
ON/OFF
ON/OFF
ON/OFF
Prompted
onlyif
MODE
is setto
MANUAL
•When condition of Low Current occurs,the displayof controller will show the
'CURR'
•Low current setting is applicable fornoload conditiononly. (i.e.minimum load)&
to be done at no load condition on site.
•NoVoltage Alarm deactivation time is 90 sec.
Note:
Mounting APFC: Cable and Cover termination:
# Response time for relay is 3-5 sec.

a) Manual switching (MANL)
b) Rotational switching (ROTN)
c) Automatic switching (AUTO)
d) Linear switching (LINR)
When this switching programis selected, the capacitor steps are controlled manuallybythe user.
This switching programis based on rotational first-in-first-out sequence. This option will automatically switchin and out the capacitors according to the
targeted power factor, sensitivity setting and there-connection time setting.
This automatic switching program uses intelligent switching sequence. The step switching sequence is notfixed and theprogram automatically selects
the most appropriatesteps to switchinor out in order to achieve shortest reaction time with minimum number of steps.
In this switching sequence it worksin lastinfirst out mode. This option will automatically switchin and out the capacitors according to thetargeted
power factor, sensitivity setting and there-connection time setting.
User Guide
Siemens Ltd. Product development is a continuous process. Consequently
the data indicated in this Leaet is subject to change without
prior notice. For latest issue contact our sales ofces.
Disposal
Siemens product are environment friendly, which predominantly
consist of recyclable materials.
For disposals we recommend disassembling and separation into
following materials:
METALS: Segregate into Ferrous & Non Ferrous types for recycling
through authorised dealer.
PLASTICS: Segregate as per material type for recycling through
authorised dealer. Because of the long lifetime of Siemens
products the disposal guidelines may be replaced by other national
regulations when taking the product out of service.
The local customer care service is available at any time to answer
disposal-related questions
Customer Care Toll free no. 1800 209 0987 Email: [email protected] Order No. A5E41790585A
Phase-Angle Setting
Voltage
CT
Phase-Angle
L1-N
L1
0º
L2-N
L2
0º
L3-N
L3
0º
L3-N
L2
120º
L2-N
L1
120º
L1-N
L3
120º
L1-L2
L3
90º
L3-L1
L2
90º
L2-L3
L1
90º
L1-L2
L1
330º
L3-L1
L3
330º
L2-L3
L2
330º
L3-N
L1
240º
L1-N
L2
240º
L1-L2
L2
210º
L3-L1
L1
210º
L2-L3
L3
210º
L2-N
L3
240º
Dimensional Drawing (mm)
Panel Cutout (in mm)
138
138
Outline Dimensions (in mm)
144
136.5
144
550
Side
view
Frontbezel