Chroma 64180 User manual

Programmable AC Power Source 6560/6590 User’s Manual
Programmable
AC Power Source
64180/64270/65180/65270
User’s Manual
Edition
August 2003

General Information
1. General Information
1.1 Introduction
Chroma AC source model 64180/64270/65180/65270 are designed to get larger 3-phase AC
power. They are assembled by 3 units of nowaday model 6460/6490/6560/6590. Each unit is
used as one phase output. This manual only describes the installation, operation and theory
specially for 64180/64270/65180/65270 programmable AC source. The detail specification and
operation, please refer to the user’s manual of 6460/6490 or 6560/6590.
1.2 Description
For model 64180/64270/65180/65270 AC sources, although the model name and appearance are
looked almost the same with 6460/6490/6560/6590, the inner F/W and connected cables are
different. There is one Master and two Slaves in the three units of 64180/64270/65180/65270.
It is impossible to use individual unit as totally the same as 6460/6490/6560/6590. The Master
unit can be used individually, but the slaves only can used with the Master together.
In order to help users to operate 64180/64270/65180/65270 AC sources as conveniently as
possible, Chroma offers a softpanel. It is a easy-use remote control interface. Users can
operate on the computer with GPIB interface.
1.3 Key Features
zLocal operation from the front panel keypad
zRemote operation via GPIB interface
zEasy-use softpanel software

Programmable AC Power Source 6560/6590 User’s Manual
1.4 Specifications
Model 64180/64270/65180/65270 are assembled by 3 units of nowaday model
6460/6490/6560/6590. The detail specification and operation, please refer to the user’s manual
of 6460/6490 or 6560/6590.
1.5 Names of Parts
1.5.1 The Front Panel
64180/65180

General Information
64270/65270
Figure 1-1 The Front Panel

Programmable AC Power Source 6560/6590 User’s Manual
1.5.2 The Rear Panel
64180/65180

General Information
64270/65270
Figure 1-2 The Rear Panel

Calibration Procedure
F-2-1
2. Installation
2.1 Preparation for the Use
Although Chroma AC source model 64180/64270/65180/65270 are assembled by 3 units of
nowaday model 6460/6490/6560/6590, the F/W and connecting cables are different. Chroma
has install the 64180/64270/65180/65270 F/W before shipping by your order. And the
accessories includes connecting cables and input breaker.
Before begins the instrument must be connected with an appropriate AC line input. As the
instrument is cooled by fans intelligently, it must be installed in an area with sufficient space for
air circulation. It should be used in an area where the environment temperature does not exceed
40°C.
2.2 Requirements of Input Power
2.2.1 Ratings
Input Voltage Range: 190-250 VLL, 3 phases 4 wires ∆, or
329-433 VLL, 3 phases 5 wires Y
Input Frequency: 47-63 Hz
Max. Current/Phase: 64180/65180 : 50 A
64270/65279 : 70A
aCaution
The AC source can be damaged if it is operated at an input voltage that is beyond its configured
input range.

Programmable AC Power Source 6560/6590 User’s Manual
F-2-2
2.2.2 Input Connection
The input terminal block is located on the instrument rear panel. The power cord must be rated
at least for 85°C. The power line input must have a current rating, which is greater than or
equal to the maximum current rating of the AC source.
aCAUTION
There are two input voltage rating models, one is 380 VLL3 phases 5 wires (Y), and the other is
220 VLL 3 phases 4 wires (∆). Be careful to verify the model you have, and make sure that the
main voltage is suitable for the model.
See Figure 2-1 and do the following steps one by one:
1. Remove the safety cover from the back of AC source.
2. Open the line clamp on the safety cover, and screw on the power cord to the instrument
through the cable gland.
3. Position the power cord, and tighten the cable gland to secure the clamp.
4. Connect the ac lines to the terminal blocks of the AC source as Figure 2-2 shows.
5. If you need to connect the load to AC source, please refer to section 2.4 for output
connection.
6. Slip the safety cover over the ac input terminal strip, and secure the cover with two screws.
+WARNING
To protect operators the wire connected to the GND terminal must be connected to the ground.
Under no circumstances shall this AC source be operated without an adequate ground connection.
Installation of the power cord must be done by a professional in accordance with local electrical
codes.

Calibration Procedure
F-2-3
Figure 2-1 6460/6490/6560/6590 220 3∼∆ Input Connection
Figure 2-2 6460/6490/6560/6590 380 3∼Y Input Connection
For Model 64180/65180, because 6460/6560 only use two of the three phases for its input power,
for the phase current balance concern, we strongly suggest the user to connect the three phase
equally to the three units input as following :
For 3-phase main power, the three phase marked : R, S, T, N and Ground
R --> Connect to Master L1, Slave 1 L2, and Slave 2 L3.
S --> Connect to Master L2, Slave 1 L3, and Slave 2 L1.

Programmable AC Power Source 6560/6590 User’s Manual
F-2-4
T --> Connect to Master L3, Slave 1 L1, and Slave 2 L2.
N --> Connect to Master, Slave 1 and Slave 2 N/GND.
G --> Connect to Master, Slave 1 and Slave 2 Safety GND terminal.
+NOTICE
Because the three 64180/64270/65180/65270 can power on normally only when these three AC
sources be turned on almost at the same time. We strongly suggest the user to use an external
three phase breaker to switch on/off the main power in stead of their own power switch.
2.3 Output Connection
The output terminal block is located in the rear side of AC source. Load connection to the AC
source is done at the output terminals. To meet the safety requirements the wires to the load
must use gauges large enough to prevent from overheating while carrying the output current.
It can only output one phase when 6490/6590’s F/W is installed for 64270/65270. So, there is
only one-phase connecting in this case.
Figure 2-4 6590 One-Phase Output Connection

Calibration Procedure
F-2-5
Figure 2-5 6560 One-Phase Output Connection
Model 64180/64270/65180/65270’s output configuration is Y type three-phase structure.
The Master output port ( ϕ1, ϕ2, ϕ3 ) makes “ R “ of the three phase.
The Slave 1 output port ( ϕ1, ϕ2, ϕ3 ) makes “ S “ of the three phase.
The Slave 2 output port ( ϕ1, ϕ2, ϕ3 ) makes “ T “ of the three phase.
The Master, Slave 1, Slave 2 output port ( COM ) makes “ N “ .
Master (ϕ1, ϕ2, ϕ3) Slave1(ϕ1, ϕ2, ϕ3 )
R S
R
N S
Master(COM)
Slave1(COM) T
Slave 2 ( COM )
N
T
Threephase
Slave2(ϕ1, ϕ2, ϕ3 ) Output

Programmable AC Power Source 6560/6590 User’s Manual
F-2-6
+NOTICE
What you program at each unit’s display is the “ Phase voltage “. You have to multiply it by
1.732 to get the Line – Line voltage.
When the user want get phase voltage larger than 300V, he may use SERIES mode of 6460/6560.
Be very careful that the SERIES and PARALLEL mode output connection are totally different.
Figure 2-6 6560 Series Output Connection (Note: VLOAD=2×Vset)
Output voltage is ( ϕ1, ϕ2 ) to ( COM ) for each 6560 cause ϕ1 and ϕ2 are short inside in
PARALLEL mode. But output voltage is from ( ϕ1 ) to ( ϕ2 ) when in SERIES mode. And the
output voltage is Double the programmed voltage on the display. So for SERIES mode :
The Master output port ( ϕ1 ) makes “ R “ of the three phase.
The Slave 1 output port ( ϕ1 ) makes “ S “ of the three phase.
The Slave 2 output port ( ϕ1 ) makes “ T “ of the three phase.
The Master, Slave 1, Slave 2 output port ( ϕ2 ) makes “ N “ .
For VLL 380 V at series mode, you have to program 380/2/1.732 = 109.7 at the master display.

Calibration Procedure
F-2-7
AWG No. Capacity
1AWG No. Capacity 1
14 25A 8 60A
12 30A 6 80A
10 40 A 4 105 A
Table 2-1 The Characteristics of AWG (American Wire Gauge) Copper Wire
1. The capacity is based on the ambient temperature of 30°C with conductor rates at 60°C.
2.4 Signal Cable Connection
Please refer to 64180/64270/65180/65270 Install Manual.
2.5 The Procedures of Power-on and Power-off
+WARNING
Before turning on the instrument, all protective earth terminals, extension cords, and devices
connected to the instrument must be connected to a protective ground. Any interruption in the
protective grounding will cause a potential shock hazard that might injure people.
Because the three 64180/64270/65180/65270 can power on normally only when these three AC
sources be turned on almost at the same time. We strongly suggest the user to use an external
three phase breaker to switch on/off the main power in stead of their own power switch. So,
turn on the power switches on the front panel of every unit before turn on the input breaker.
The AC source will do a series of self-tests every time it is turned on.
If any failure is detected on a certain item, an “NG” will be shown at the right side of that item
and beep. It takes about eight seconds to complete the routines of self-test.
When the user want turn off the AC source, do not turn off the power switches on the front panel
of every unit. Please turn off the external three phase breaker to switch off the main power.

Programmable AC Power Source 6560/6590 User’s Manual
F-3-8
3. Local Operation
The AC source 64180/64270/65180/65270 can be configured to operate in local or remote mode.
The operation in remote mode through a remote GPIB interface will be described in Chapter 6
Remote Operation. This chapter describes the operation in local mode through the keypad on
the front panel for data entry and test. The AC source is configured for local operation when
turned on.
3.1 Introduction
The AC source provides a user-friendly programming interface to use the keypad on the front
panel. 64180/64270/65180/65270 are assembled from 3 units of 6460/6490/6560/6590.
Because the connecting don’t include data transfer, some parameters setting need to operate on
every unit. The LCD display of each unit is a little different because we define one of them as
Master, and the others are Slave. The Master will send some signals to Slaves for proper control.
In order to get correct operating, the user must follow a certain setting procedure.
3.2 Output Setting
There are many output setting parameters in order to get right output voltage. It includes
voltage, frequency…etc. They are on main operation menu or CONF or SETUP page.
Please refer the following to set the right value.
LNOTICE
In order to properly control the 3 units of AC souce, they have been set and fixed which is Master
or Slave unit before shipping. Users can press SETUP softkey on main manu page, then press
SYSset to see the Machine Set.
LWARNING
The Machine Set for to be Mater or Slave have been fixed. Please not change it.

Calibration Procedure
F-3-9
3.2.1 Setting Output Voltage, Frequency
After you have powered on the AC source, and accomplished the self-test (or exited from any
other menu by pressing QUIT), the LCD of Master unit will display a main operational menu on
the screen as below:
The line where the cursor stays indicates the AC source is waiting for the voltage value input.
Users can easily set voltage for every phase in individual LCD display. There is no frequency
setting in the main operational menu of Slaves. Users only need key-in Frequency setting in the
Master. The Slaves will follow the frequency setting of Master.
There are two range of voltage output 150V and 300V for each phase. Users can change the
range in SET UP to fit their application condition. But to set the same range for every phase is
recommended. Please refer to 6460/6490 or 6560/6590 user’s manual for more detail.
V=_ 0.0 F = 60.0 Vout = Immed
LIST

Programmable AC Power Source 6560/6590 User’s Manual
F-3-10
3.2.2 Setting the Output Transition Phase
The AC source can control the transition angle of the output waveform on the setting of Sync.
source=phase. Users can easily set the angle by moving cursor to the setting position. When
Sync. Source = Immed means the transition angle is not defined, the value depends on the time
point the commend executes immediately. But to set a proper phase is recommended.
LNOTICE
The AC source allows you to program different phase from 0 to 359.9 in the step of 0.1 degree.
V=_ 0.0 F = 60.0 Vout = Immed
LIST
V=220.0 F = 50.0 Vout = Immed
LIST
Sync. Source = phase value = 90

Calibration Procedure
F-3-11
In order to get a right transition angle when output voltage for 3 phase, users should set right
phase value that is relative to phase angle between Master and Slaves. Please refer the
following example : Set the transition output “phase” of Master (ϕ1)to 90 degrees, when the
Slaves ϕ2, ϕ3phase angle to Master are 120 and 240 degree.
The Master’s setting (ϕ1): Sync. Source = phase phase = 90.0
The Slave’s setting (ϕ2) : Sync. Source = phase phase = 210.0 (90 + 120 = 210 )
The Slave’s setting (ϕ3) : Sync. Source = phase phase = 330.0 (90 + 240 = 330 )
3.2.3 The Phase Angle of Phases
Normally, the phase angle between each phase is 120 degree for 3-phase AC power. In order to
simulate 3-phase unbalance, users can change phase angles easily on 64180/64270/65180/65270.
Uses can change phase angle on Slave units by pressing CONFIG softkey for setting. Then
press MORE softkey to go to next page. Move cursor to Set Phase Shift, then, users can
change the phase angle between Master and Slave.
Remote sense = OFF
GPIB address = 30 MORE

Programmable AC Power Source 6560/6590 User’s Manual
F-3-12
3.2.4 The Execution of Output
You can press the soft key RUN in the main menu of Master, to enable the execution of output of
3 phases. When you press RUN, the LCD will change from “Output status=PAUSE” to “Output
status =RUN”, and the command string of the original “RUN” will change to “PAUSE” (Press
the soft key PAUSE to disable output when output is in “RUN”).
V=220.0 F = 50.0 Vout = Immed
LIST
Sync. Source = phase value = 90
Phase Status = ON
Waveform A =SINE
B=SINE
Set Phase Shift = 120.0