DOLD MINISTART UG 9256/804 Translation Of The Original Instructions

Power Electronics
MINISTART
Smart Motorstarter with autom. phase sequence correction
UG 9256/804, UG 9256/807
Product Description
The smart motorstarter UG 9256/804 and UG 9256/807 is used to provide
always a clockwise phase sequence and to start asynchronous motors.
Independent of the the phase sequence on the input it will always provide
clockwise sequence on the output to the motor. The unit also protects the
motor against phase failure and motor overload.The relays of the reversing
circuit switch without current. This provides a long electrical life. To reduce
the motor starting current and protect the drive, the motor starter is
equipped with a fixed soft start function.
Function diagram
U
L1/L2/L3
Clockwise or anticlockwise phase sequence
L1/L3/L2
UH
A1+/A2
R
LED_R
I
e
Motor
current
T1/T2/T3
Always clockwise
11-14
Ready
11-12
LED.ON
LED.ERR
t p
t = Overload response time according to
p
characteristic class 10A or 5
All technical data in this list relate to the state at the moment of edition. We reserve the right for
technical improvements and changes at any time.
Overload failure
Translation
of the original instructions
Your Advantages
• Up to 4 functions in one unit
- Providing clockwise phase sequence at the motor connection terminals
- Phase failure detection
- Motorprotection Class 10 A, Class 5
- Softstart
• Galvanic mains separation by forcibly guided contacts
contact opening min. 0.5 mm (UG 9256/807)
• 66 % less space
• Simple and time-saving commissioning as well as user-friendly
operation through setting via potentiometer on absolute scale
• Hybrid relay combines benefits of relay technology with
non-wearing semiconductor technology
• High availablility by
- Temperature monitoring of semiconductors
- High withstand voltage up to 1500 V
- Load free relay reversing function
Features
• According to UL 60947-4-2, IEC/EN 60947-4-2
• To reverse the rotary field
• For 3-phase motors with rated motor current from
I 0.1 A ... 0.5 A or 0.5 ... 2 A or 1.5 A ... 9 A
e
• 1 potentiometer für setting of rated motor current
• 3 LEDs for status indication
• Reversing with relays without current, switching with thyristor
• Galvanic separated 24V-inputs for clockwise
• Reset button on front
• Connection facility for external reset button
• Relay indicator output for operation
• Galvanic separation between control circuit and power circuit
• Galvanic separation of motor terminals from mains voltage in off state
or fault condition (UG 9256/807)
t
• Width 22.5 mm
t
Approvals and Markings
t
Canada / USA
Application
- Conveyor systems with preferred direction of rotation
- Actuating drives in process controls with preferred direction of rotation
t
t
t
t
t
M11397
1
*
)
* 9 A-variants
)
18.11.24 en / 907A