PSTX170-600-70 – ABB PSTX Series Softstarter, 60 HP / 45 kW @ 240V, 125 HP / 90 kW @ 480V, 150 HP / 110 kW @ 600V, 3 Phase Input, 3 Phase Output, Control Voltage: 100 – 250 VAC, IP20, 169 Amps

The PSTX series is a highly advanced softstarter perfected by the engineering team of ABB. It brings reliability in the form of protective features and introduces new functionalities with this softstarter. Motor control on the PSTX softstarter is also improvised for enhanced reliability.   System integrators will find the PSTX series softstarters an ideal option for water treatment applications. Not only water treatment systems are dependent on a functional of the water pump, but the harsh environment it operates in demand a reliable softstarter like the PSTX series.   By using the PSTX series of softstarters, common issues of water treatment processes can be alleviated. For instance, water hammering that physically affect the lifespan of pumps and pipes is addressed by the PSTX torque control feature using a feedback loop.   Facilities located in cold climates can benefit from PSTX series softstarters motor heating capability. This unique feature enable the motor to remain warm and dry without spinning it. Besides this, expenses incurred in clearing clogged pumps can also be minimized with the softstarter’s intelligence pump cleaning feature.   To keep the motor intact, the PSTX series softstarters also boast self-protective mechanisms. The PSTX softstarters are integrated with electronic overload protection mechanisms that can be configured according to the application requirement. When operated in bypass mode, the motor is adequately protected from the softstarter’s thermal protection feature.   With the PSTX series softstarters in place, facilities managers will have the peace of mind that the water treatment system will be operated efficiently and reliably.   Key features of the PSTX series softstarters.

• Three-phase controlled
• Operational voltage: 208-690 V AC
• Wide rated control supply voltage: 100-250 V, 50/60 Hz
• Rated operational current: 30…1250 A (inside delta: 2160 A)
• Coated circuit boards
• Torque control for excellent control of pumps.

 

PSTX170-600-70 PSTX Series Features

1. PSTX170-600-70 Pump Protective Mechanism

The PSTX series softstarters are engineered to mitigate various circumstances that could affect the lifespan of the motor. It can reliably detect a clogged or jammed pump and protect the motor from overheating. A dry pump will trigger built in under current or power factor protective mechanism.

2. PSTX170-600-70 Ease Of Installation

Installation of the PSTX series softstarters is simplified with the aid of the detachable keypad. Without opening the panel door, technicians can configure, control and monitor the motor easily from a series of buttons and display. The HMI supports up to 15 different languages, ensuring it’s user-friendly for the international clients.

3.  PSTX170-600-70 Reliable In Harsh Environment

The PSTX series softstarters will lay any worries about operating in harsh conditions to rest. Besides supporting a wide main voltage range of 208-600V, its internal circuit board is coated to prevent the effect of corrosion, dust and moisture. The softstarter’s detachable keypad is also rated with IP66, which assure reliability amidst dust and water exposure.

4. PSTX170-600-70 Modbus RTU

Remote monitoring and control is possible with the PSTX series softstarters. It has a built-in Modbus-RTU module that allowed RS485 connection between the softstarter and a host controller. This allows parameters to be downloaded or uploaded between both equipment.

PSTX170-600-70 Other PSTX Series Features

1. PSTX170-600-70 Technical Data

• 24 V output : 24 V ± 5% Max 250 mA
• Rated insulation voltage, Ui : 600 V / 690 V
• Rated operation voltage, Ue : 208-600 / 690 V, 50 / 60 Hz
• Rated supply voltage,Us : 100-250 V, 50 / 60 Hz
• Voltage tolerance : +10% to -15%
• Rated frequency : 50 / 60 Hz
• Frequency tolerances : ± 10%
• Rated impulse withstand voltage:
  • 6 kV Operation circuit ;
  • 4 kV Control and supply circuit
• Relay outputs : 3 programmable
• Number of controlled phases : 3
• Inputs : Start, stop, 3 programmable inputs (Digital I/O: In0, In1, In2), temperature sensor input.
• Outputs : Relay outputs: K4 K5 K6
• Output relay performance : 250 V AC, Ith = 5A, Ie = 1.5A (AC-15)
• Analog output : 4-20 mA, 0-20 mA, 0-10 V, 0-10 mA
• PTC input :
  • 2825 ohm ± 20% switch off resistance ;
  • 1200 ohm ± 20% switch on resistance
• Cooling system : Fan
• Recommended fuse : 6 A Delayed
• Control supply circuit : MCB use C characteristics
• Communication : 3 Fieldbus ports, Extension I/O
• Communication protocols : DeviceNet / Profibus DP / Modbus / EtherNET/IP / Modbus TCP/ Profinet

 

2. PSTX170-600-70 Technical data for external keypad

• Status indicating LEDs
  • Ready: Green
  • Run: Green
  • Protection: Yellow
  • Fault: Red
• Ambient temperature
  • Storage: -25 °C to +70 °C (-13 °F  to 158 °F)
  • Operation: -25 °C to +60 °C (-13 °F to 140 °F)
• Degree of protection : IP66
• UL approval :
  • Type 1
  • Type 4X
  • Type 12

 

3. PSTX170-600-70 Available Start Functions

• Voltage start ramp
• Torque start ramp
• Full voltage start ramp

 

4. PSTX170-600-70 Available Stop Functions

• No ramp
• Voltage stop ramp
• Torque stop ramp
• Dynamic brake

 

5. PSTX170-600-70 Internal I/O

• 5 Digital inputs
• 3 Relay output
• 1 Analog output

 

6. PSTX170-600-70 Extension I/O (Option)

• 8 Digital input
• 4 Relay output
• 1 Analog output

 

7. PSTX170-600-70 Supported Fieldbus Types

• Modbus-TCP
• Modbus-RTU
• DeviceNet
• Profibus
• EtherNet/IP
• Profinet