Powtran PB200 Series, Operating Manual, Page: 6 / 27

Chapter 1 Inspection and safety precautions
2
1-2.
.Safety precautions
Safety precautions in this manual are divided into the following two categories:
Danger: the dangers caused by failure to perform required operation, may result in
serious injury or even death;
Caution:the dangers caused by failure to perform required operation, may result in
moderate injury or minor injury, and equipment damage;
Process Type
Dangerous
● Only well-trained personnel are allowed to use this unit.
● Fix the screw when connecting, or the loose connection will lead fire or creepage.
● Grounding terminal should be reliable grounding braking unit, or get an electric
shock risk.
●Do not touch the brake unit, the internal spares and printing board after the brake unit
is connected, otherwise it will lead to electric shock. There is high voltage direct
current inside.
●Don't let the cable damage from weight hanging and over load, or get an electric
shock risk.
●The unit and brake resistor should be installed on the medium with flame retardancy
(such as metal), away from combustible material, otherwise may cause fire
●Please check the wiring is correct before operation. Please confirm whether the input
DC voltage and brake unit voltage same level; Whether Input terminal (+, -) and
resistance terminal (RB1, RB2) connection position is correct; And check the
peripheral circuit of the connected to the drive for short circuit phenomenon, whether
the line is fastening, otherwise cause damage of drive.
●Please check whether master-slave choice and voltage grade Settings are correct.
●During the running, do not touch any spares inside.
●The repairs and maintenance task can be performed only when the inverter bus
voltage is lower than DC 36V, Power off more than ten minutes.Otherwise, the
residual charge from capacitor would cause personal injury!
Attention
● Do not use any brake unit and brake resistor lack of or with damaged spares.
●Do not touch the internal spares for there are CMOS spares on the control card of the
brake unit. Otherwise it will damage the spares.
●When many pieces brake units installed in parallel when used in the same case, please
install the fan or other cooling device.
●Ensure the right setting of brake unit and brake resistor.
●Do not make voltage resistance test on the brake unit, or it will lead semiconductor
spares damaged in the main circuit of the brake unit.
●Braking resistor should be temperature protection and other protection, if the brake
resistance keep hot which caused by the failure of the brake unit. fever, necessary to
isolate itself, does not automatically isolation caused any accident not be burdened
by Powtran.
●Please refer to the content in the manual when analyze and manage the fault of the
brake unit. Any modification to the brake unit is not allowed otherwise the life
harm and property loses will not be burdened by Powtran.
●This product is the accessories of the inverter, if it is used improperly which would
not only do damage to itself but also to the inverter. Please pay much attention to
this.
●Only the well-trained personnel are allowed to use this unit, and such personnel must
read through the parts of this manual relating to the safety, installation, operation and
maintenance before using the unit. The safe operation of this unit depends on correct
transport, installation, operation and maintenance.
Note: When brake unit work with powtran inverter,powtran will responsible for quality, If the
brake unit work for other project, Please make your own insurance related domestic property
insurance, in order to get better compensation from insurance company.