OEM PBZ-300 User manual

rev 1.06 / 2021 08 11
PBZ-300 / PBZ-500
capacitor charging power supplies
User manual
Warning! This equipment may be dangerous.
Please read the entire user manual carefully before using the product.
Important note. Module is sensitive to the reverse polarity applied
to the output. If you aren’t sure of your application,
please contact the manufacturer for the details.

Description / Appearance
PBZ-300 and PBZ-500 capacitor charging modules are high-frequency switch-mode converters,
which transform low voltage DC input to the regulated high voltage DC output to charge
capacitors.
Input voltage is 24V DC for PBZ-300 and 48V DC for PBZ-500. The maximum output voltage
level (VMAX) could be chosen from 300V to 4000V at the moment of order. Higher output
voltages are available upon request.
Output power is up to 400W and 700W for PBZ-300 and PBZ-500 respectively.
By default modules are optimized for partial discharge applications. Complete discharge
modifications are available on request.
Power supplies are forced-air cooled with built-in fans.
By default, all interfaces are analogue. Digital interfaces are available on request.

Connectors, pins, interface signals
INTERFACE: 13 pin mixed D-SUB connector of 13W3 type
24V DC (48V DC) power and all the control signals are to be connected here.
PIN (color)
DESIGNATION
DESCRIPTION
A1 (yellow/green)
GND
Module can be protectively grounded via
this pin
A2 (red)
24V DC (48V DC)
DC power supply should be connected here
A3 (black)
DC RETURN
1, 2 (transparent)
N/C
-
3 (orange)
HV Program
DC voltage applied between pins 3 and 4
sets up the output high voltage level
Calibration is linear, 10V between pins 3
and 4 corresponds to VMAX at the output
4 (blue)
HV Program
Return
Return of HV Program signal
In order to improve high voltage stability
HV Program Return isn’t connected to the
common ground of Interface
5 (green)
N/C
-
6 (violet)
Fault
5V TTL if fault occurred, 0V elsewise.
Fault state is set in the case of overheating.
7 (blue/white)
Enable
Pin 7 should be pulled to the ground to
enable the output. Output is disabled while
TTL high level is applied to pin 7 or pin 7 is
left unconnected
To use power supply in stand-alone regime,
pin 7 can be short-circuited with one of
Interface return pins (e.g. pin 10)
8 (white)
HV Monitor
Output voltage monitor
Calibration is linear, 10V on pin 8
corresponds to VMAX at the output
9, 10 (black)
GND
(Interface return)
Return of all Interface signals (Enable, HV
Monitor, Fault) except HV Program
Warning! Because of safety reasons we highly recommend to use low voltage
power supply with DC output galvanically insulated from AC input (insulation strength
4000VAC, 2500VAC or 1500VAC is selected in dependence on your application).

HV OUTPUT: 2-pin or 3-pin proprietary connector by OEM Tech
By default PBZ-300 (PBZ-500) is supplied with positive output polarity (P).
Negative output (N), floating output (F) and bipolar output (B) are available on request.
Pin layouts in dependence on modification are given in the table below:
PIN (color)
Modification
P
N
F
B
Number of
Pins
2
3
HV–(blue)
-
-V
HV Negative
-V/2
GND (black)
GND
GND
-
GND
HV+ (red)
+V
-
HV Positive
+V/2
“V”is output voltage amplitude
MOUNTING AND GROUNDING:
Power supply is to be mounted with 4pcs M4 screws (M4x10 or shorter).
Grounding policy
By default all grounds of PBZ-300 (PBZ-500)
(HV OUTPUT ground, 24V DC or 48V DC return and Interface return)
are interconnected inside the power supply and connected to the module’s chassis.
Other grounding policies are possible on request.
Warning! Power supply enclosure is to be
protectively grounded using provided M4 grounding thread.
COOLING:
Module is forced-air cooled with the built-in fans. No additional cooling is required.

Safety
Warning! This equipment produces high voltages that can be very dangerous.
Be careful around the equipment.
Assemble the entire setup before powering up the device.
•Power supply enclosure is to be protectively grounded via provided grounding stud.
•Use low voltage power supply with DC output galvanically insulated from AC input
(insulation strength 4000VAC, 2500VAC or 1500VAC is selected in dependence on your
application)
•Do not connect / disconnect output cables while driver is turned on
•Do not operate with disconnected load
•Avoid casual contacts of personnel with output cables and with the load
•Do not turn the power supply on if it was already damaged with water, chemicals,
mechanical or electrical shock
•Do not self-repair the power supply, there are no user-serviceable parts inside
Operations
1Ensure 24V DC (48V DC) power supply is off
2Connect PBZ-300 (PBZ-500) to the load and to 24V DC (48V DC)
power supply. Do not apply DC power until the setup is completely
assembled
3Disable PBZ-300 (PBZ-500) (pin 7 of Interface)
4Set HV Program to 0V (pins 3 and 4 of Interface)
5Apply 24V DC (48V DC) power to PBZ-300 (PBZ-500)
6Set HV Program to the desired value (pins 3 and 4 of Interface)
7Enable PBZ-300 (pin 7 of Interface)

Specifications
ELECTRICAL
PBZ-300
PBZ-500
Input
Input voltage (DC)
24 V
48 V
Input current
<20 A
<18 A
HV Output
Output polarity
Positive by default (negative polarity, floating
and bipolar outputs are available on request)
Maximum output voltage (VMAX)
300V, 500V, 700V, 1000V, 2000V, 4000V
or other (user selectable in 300V-4000V range)
Nominal output power
(complete discharge modifications, can be
achieved in regime 0-100% of VMAX, rated
input voltage, 25 °C)
300 J/s
500 J/s
Nominal output power
(partial discharge modifications, can be
achieved in regime 70-100% of VMAX,
rated input voltage, 25 °C)
400 W
700 W
Output power deratings
Output power is derated when:
-operating voltage is lower than 70% of VMAX (PD
modifications)
-operating voltage is lower than VMAX (CD
modifications)
-ambient temperature is higher than 25 °C
-input voltage is below minimum rated voltage
Voltage stability
<0.5%
Voltage ripple/hysteresis
<0.5%
Efficiency
More than 85%
Protections
From overheating
Environment
Operation temperature
+10...+40 °C
Storage temperature
-20...+60 °C
Humidity
90%, non-condensing

MECHANICAL
Size (LxWxH)
See dimensional drawing below
Weight
<1,0 kg

How to order?
PBZ-[BT]-300-XXXX-YY-Z or PBZ-[BT]-500-XXXX-YY-Z, where:
-BT means bench-top version (option)
-XXXX means maximum output voltage –user selectable from 300V to 4000V (300V,
500V, 700V, 1000V, 2000V, 4000V are the most standard modifications)
-YY means discharge type modification –CD for complete discharge modification, PD
for partial discharge modification; if YY is not specified PD modification will be
supplied
-Z means output polarity –P for positive, N for negative, F for floating output, B for
bipolar output (three leads output). By default modifications with positive output are
supplied
Examples:
P/n
Description
PBZ-300-500V-PD-P
Embedded version, 24V DC input
Maximum output voltage 500V
Partial discharge modification
Maximum output power 400W
Positive output polarity
PBZ-500-4000V-CD
Embedded version, 48V DC input
Maximum output voltage 4kV
Complete discharge modification
Maximum output power 500J/s
Positive output polarity
PBZ-BT-300-4000V-CD-B
Bench-top version, 100-240V AC input
Maximum output voltage 4kV
Complete discharge modification
Maximum output power 300J/s
Bipolar output
Other VMAX are available on request.

Dimensions

Bench-top version
Bench-top version of PBZ-300 with 100-240VAC input is also available.
Bench-top version of PBZ-500 with 100-240VAC input is available on request.