Powtran PB200 Series, Operating Manual, Page: 11 / 27

Chapter 2 Technical specifications and installation
7
Frequency
inverter
Brake unit
+ - + -
RB1 RB2
+ -
RB1 RB2
Brake resisto
r
Host
Slave
COM PIO
COM PIO
(F0.06=0)
(F0.06=1)
TA
TB
TC
TA
TB
TC
Brake resisto
r
Brake unit
Figure 2-6:Figure multi-brake units parallel connection diagram
NOTE:
1. The connection cable of frequency inverter and brake unit shall be twisted with two lines,
the longest of which shall not exceed 5m
2. The distance of the connection between the brake resistor and brake unit should less than
10m, should use heat-resistant wires.
3. +/P+ is the positive end of DC BUS in the frequency inverter, -P- is the negative end.
4. Output relay TA/TB/TC,TA-TC normally open and TB-TC close. Relay drive
ability. :normally close 3A/AC 250V,normally open.5A/AC 250V.
5. Wrong connection of main circuit will cause damage of brake unit and frequency inverter.
6. Please do not touch the brake unit when it is working, to avoid scald.
2-5-1. Brake unit main circuit terminal and making circuit terminal
1
、
Main circuit terminal
RB1 RB2 （+）（-）
Figure 2-5. Brake unit main circuit terminal
Terminal mark Function instruction
(+) Connect the positive terminal of the inverter DC BUS.
(-) Connect the negative terminal of the inverter DC BUS.
RB1
、
RB2
External connect brake resistor terminal
PE Brake unit ground terminal
2. Control circuit terminal
COM PIO
TA TB TC
Figure 2-6. Control circuit terminal
Terminal mark Function instruction
COM
Brake unit control circuit ground.
PIO
Brake units work in parallel in input or output terminal, when multi brake
unit used in parallel, send control signal through the terminal that braking
unit can run simultaneously.
TA/TB/TC
Fault output terminals, when braking unit failure, send out fault alarm
signal. TA - TC for normally open and TB - TC closed