Softstart UK Contents Contents 1. 2. About This Manual ...............................................................................................................3 Caution Statements .............................................................................................................4 2.1. 2.2. 2.3. Electrical Shock Risk ............................................................................................................................................
Contents Softstart UK 11.2. 11.3. Trip Messages .................................................................................................................................................... 57 General Faults .................................................................................................................................................... 60 12.1. 12.2. 12.3. 12.4. Communication Modules ..............................................................................................
Softstart UK 1. About This Manual About This Manual The examples and diagrams in this manual are included solely for illustrative purposes. The information contained in this manual is subject to change at any time and without prior notice. In no event will responsibility or liability be accepted for direct, indirect or consequential damages resulting from the use or application of this equipment. WARNING Indicates a hazard that may cause personal injury or death.
Caution Statements 2. Softstart UK Caution Statements Caution Statements cannot cover every potential cause of equipment damage but can highlight common causes of damage.
Softstart UK 3. 3.1.
Specifications 4. 4.1. Softstart UK Specifications Model Code LV-DS – – – Control voltage C1 = 110-120 VAC or 220-240 VAC Mains voltage V7 = 380 ~ 690 VAC Bypass B = internally bypassed C = non-bypassed Nominal current rating 4.2. • Current Ratings Contact your local supplier for ratings under operating conditions not covered by these ratings charts. Current Ratings for Bypass Operation 80 A : AC-53b 3.
Softstart UK Specifications Inside delta connection LV-DS-0023B LV-DS-0043B LV-DS-0050B LV-DS-0053B LV-DS-0076B LV-DS-0097B LV-DS-0100B LV-DS-0105B LV-DS-0145B LV-DS-0170B LV-DS-0200B LV-DS-0220B LV-DS-0255B LV-DS-0255C LV-DS-0350B LV-DS-0360C LV-DS-0380C LV-DS-0425B LV-DS-0430C LV-DS-0500B LV-DS-0580B LV-DS-0620C LV-DS-0650C LV-DS-0700B LV-DS-0790C LV-DS-0820B LV-DS-0920B LV-DS-0930C LV-DS-1000B LV-DS-1200C LV-DS-1410C LV-DS-1600C • AC53b 3.0-10:350 AC53b 3.5-15:345 AC53b 4.0-20:340 AC53b 4.
Specifications Softstart UK Inside delta connection LV-DS-0255C LV-DS-0360C LV-DS-0380C LV-DS-0430C LV-DS-0620C LV-DS-0650C LV-DS-0790C LV-DS-0930C LV-DS-1200C LV-DS-1410C LV-DS-1600C • AC53a 3-10:50-6 AC53a 3.5-15:50-6 AC53a 4-20:50-6 AC53a 4.
Softstart UK Dimensions and Weights C D A B AB D C E 08718.E 4.3.
Specifications 4.4. Softstart UK Specifications Supply Mains voltage (L1, L2, L3) ........................... 380 VAC ~ 600 VAC (± 10%) (in-line or inside delta connection) .................................................................. 380 VAC ~ 690 VAC (± 10%) (earthed star supply system only) Control voltage (A4, A5, A6) .............................. 110 ~ 120 V AC or 220 ~ 240 V AC (+ 10% / -15%), 600 mA Mains frequency ............................................................................
Softstart UK 5. 5.1. Installation Installation Physical Installation 2 1/L 1 3/ L 2 5/ L3 2/T 1 4/ T 2 6/ T3 1/L 1 3/ L 2 5/ L3 2/T 1 4/ T 2 6/ T3 3 1/L 1 2/T 1 2 3/L 2 B 4/T 2 1 5/ L3 6/T 3 1/ L 1 3/L 2 5/ L3 4 5.2. 1 LV-DS-0023B ~ LV-DS-0220B: Allow 100 mm (3.94 inches) between soft starters. LV-DS-0255B ~ LV-DS-1000B: Allow 200 mm (7.88 inches) between soft starters. LV-DS-0255C: Allow 100 mm (3.94 inches) between soft starters. LV-DS-0360C ~ LV-DS-1600C: Allow 200 mm (7.
Installation Control Wiring The LV-DS has three fixed inputs for remote control. These inputs should be controlled by contacts rated for low voltage, low current operation (gold flash or similar). 3 2 1 1 Two-wire control 2 Three-wire control 54 54 54 3 Four-wire control A A 55 55 55 A Start 56 56 56 B Stop B B A B 57 57 57 C Reset C C C 58 58 58 CAUTION Do not apply voltage to the control input terminals. controlled with potential free contacts. 08721.B 5.3.
Softstart UK 5.6. Installation Power Terminations NOTE For personnel safety, the power terminals on models up to LV-DS-0105B are protected by snap-off tabs. When using large cables, it may be necessary to break off these tabs. NOTE Some units use aluminium busbars. When connecting power terminations, we recommend cleaning the surface contact area thoroughly (using an emery or stainless steel brush) and using an appropriate jointing compound to prevent corrosion.
Installation 5.7. • Softstart UK Power Input and Output Configurations Internally Bypassed Models (LV-DS-0023B~LV-DS-1000B) Models LV-DS-0023B ~ LV-DS-0220B have power inputs at the top of the unit and outputs at the bottom of the unit. Internally bypassed models LV-DS-0255B ~ LV-DS-0425B have output busbars at the bottom of the unit and input busbars at both the top and bottom of the unit. The AC supply can be connected 'Top in, Bottom out' or 'Bottom in, Bottom out'.
Softstart UK 5.8. Installation Schematic Diagrams Internally bypassed models Non-bypassed models 1/L1 2/T1 3/L2 4/T2 5/L3 6/T3 1/L1 * 2/T1 * 4/T2 * 6/T3 L1B 3/L2 L2B 5/L3 L3B PE PE A4 A4 A5 13 1 14 A6 A6 21 A 40 + 4 41 24 VDC 200 mA A 22 24 VDC 200 mA 33 54 55 + 4 40 + 34 + 56 57 58 58 64 64 3 65 2 3 Control voltage Remote control inputs Motor thermistor input Relay outputs Analog output 24 VDC output 08725.B 08724.
Power Circuits 6. 6.1. • Softstart UK Power Circuits Motor Connection LV-DS soft starters can be connected to the motor in-line or inside delta (also called three-wire and six-wire connection). When connecting in inside delta, enter the motor full load current (FLC) for parameter 1A. The LV-DS will automatically detect whether the motor is connected in-line or inside delta and will calculate the correct inside delta current level.
Softstart UK • Power Circuits In-line installation, non-bypassed KM1 F1 1/L1 2/T1 3/L2 4/T2 KM1 F1 Main contactor (optional) Semiconductor fuses (optional) KM1 F1 Main contactor Semiconductor fuses (optional) M 3 5/L3 6/T3 E 13 14 KM1 • Inside delta installation, internally bypassed KM1 F1 1/L1 2/T1 3/L2 4/T2 U1(1) U2(4) M V1(2) 3 W1(3) 5/L3 V2(5) W2(6) 6/T3 E 13 04479.
Power Circuits Softstart UK CAUTION When connecting the LV-DS in inside delta configuration, always install a main contactor or shunt trip circuit breaker. • Inside delta installation, non-bypassed KM1 F1 1/L1 2/T1 3/L2 4/T2 KM1 F1 Main contactor Semiconductor fuses (optional) U1(1) U2(4) V1(2) W1(3) 5/L3 M 3 V2(5) W2(6) 6/T3 04483.C 13 14 KM1 CAUTION When connecting the LV-DS in inside delta configuration, always install a main contactor or shunt trip circuit breaker. 6.2.
Softstart UK Power Circuits NOTE Fuse selection is based on a 400% FLC start for 20 seconds in conjunction with standard published starts per hour, duty cycle, 40°C ambient temperature and up to 1000 m altitude. installations operating outside these conditions, consult your local supplier. These fuse tables contain recommendations only. the selection for your particular application.
Power Circuits Softstart UK Model SCR I2T (A2S) Supply Voltage (< 440 VAC) LV-DS-0350B 202000 315FM* LV-DS-0360C 320000 –– LV-DS-0380C 320000 400FMM* LV-DS-0425B 320000 400FMM* LV-DS-0430C 320000 –– LV-DS-0500B 320000 450FMM* LV-DS-0580B 781000 500FMM* LV-DS-0620C 1200000 630FMM* LV-DS-0650C 1200000 630FMM* LV-DS-0700B 781000 630FMM* LV-DS-0790C 2530000 –– LV-DS-0820B 1200000 –– LV-DS-0920B 2530000 –– LV-DS-0930C 4500000 –– LV-DS-1000B 2530000 –– LV-DS-1200C 4500000 –– LV-DS-1410C 6480000 –– LV-DS-1600C
Softstart UK • Power Circuits Ferraz Fuses - North American Style (PSC 690) Model SCR I2t (A2s) Supply Voltage (< 440 VAC) LV-DS-0023B 1150 A070URD30XXX0063 LV-DS-0043B 8000 A070URD30XXX0125 LV-DS-0050B 10500 A070URD30XXX0125 LV-DS-0053B 15000 A070URD30XXX0125 LV-DS-0076B 15000 A070URD30XXX0160 LV-DS-0097B 51200 A070URD30XXX0200 LV-DS-0100B 80000 A070URD30XXX0200 LV-DS-0105B 125000 A070URD30XXX0315 LV-DS-0145B 125000 A070URD30XXX0315 LV-DS-0170B 320000 A070URD30XXX0315 LV-DS-0200B 320000 A070URD30XXX04
Power Circuits Softstart UK Model LV-DS-0620C LV-DS-0650C LV-DS-0700B LV-DS-0790C LV-DS-0820B LV-DS-0920B LV-DS-0930C LV-DS-1000B LV-DS-1200C LV-DS-1410C LV-DS-1600C • 1200000 1200000 781000 2530000 1200000 2530000 4500000 2530000 4500000 6480000 12500000 Ferraz Fuses - AJT Model 22/64 SCR I2t (A2s) Supply Voltage (< 440 VAC) 6.9URD33D11A1000 6.9URD33D11A1000 6.9URD33D11A0900 6.6URD33D11A1400 6.9URD33D11A1100 6.9URD33D11A1250 6.6URD33D11A1400 6.
Softstart UK 7. 7.1. Operation Operation The Keypad 1 2 1 3 2 3 4 5 4 5 6 6 7.2. Four-line display for status and programming details. LOCAL/REMOTE: Toggle between Local and Remote control STATUS: Open the status displays and scroll between different status screens GRAPHS: Open the performance graphs and scroll between different graph screens LOGS: Open the logs Soft starter local control buttons: START: Start the motor STOP: Stop the motor RESET: Reset a trip (Local mode only).
Operation • Softstart UK Programmable screen The LV-DS's user-programmable screen can be configured to show the most important information for the particular application. Use parameters 10B to 10E to select which information to display. • Ready 0000 hrs Motor Temperature The temperature screen shows which motor data set is in use, and the temperature of both motors as a percentage of total thermal capacity.
Softstart UK Operation The STOP button on the keypad is always enabled. Control via the serial communication network is always enabled in local control mode, and can be enabled or disabled in remote control mode (parameter 6B Comms in Remote). Control via the serial communication network requires an optional communication module. • Using the Soft Starter to Control a Motor To soft start the motor, press the START button on the keypad or activate the Start remote input.
Operation • Softstart UK Adaptive Control for Starting In an adaptive control soft start, the LV-DS adjusts the current in order to start the motor within a specified time and using a selected acceleration profile. CAUTION Adaptive Control cannot start the motor faster than a direct on-line (DOL) start. If the start ramp time (parameter 2D) is shorter than the motor's DOL start time, starting current may reach DOL levels.
Softstart UK • Operation Kickstart Kickstart provides a short boost of extra torque at the beginning of a start, and can be used in conjunction with current ramp or constant current starting. Kickstart can be useful to help start loads that require high breakaway torque but then accelerate easily (for example flywheel loads such as presses). 6 Current (%motor full load current) 2 7.6.
Operation • Softstart UK Adaptive Control for Stopping In an adaptive control soft stop, the LV-DS controls the current in order to stop the motor within a specified time and using a selected deceleration profile. Adaptive Control can be useful in extending the stopping time of low inertia loads. NOTE Adaptive control does not actively slow the motor down and will not stop the motor faster than a coast to stop. To shorten the stopping time of high inertia loads, use brake.
Softstart UK • Operation Brake Brake reduces the time the motor requires to stop. During braking an increased noise level from the motor may be audible. This is a normal part of motor braking. When brake is selected, the LV-DS uses DC injection to slow the motor. LV-DS braking: • Does not require the use of a DC brake contactor • Controls all three phases so that the braking currents and associated heating are evenly distributed through the motor.
Operation 7.7. Softstart UK Jog Operation Jog runs the motor at reduced speed, to allow alignment of the load or to assist servicing. The motor can be jogged in either forward or reverse direction. The maximum available torque for jog forward is approximately 50%~75% of motor full load torque (FLT) depending on the motor. The torque when the motor is jogged in reverse is approximately 25% to 50% of FLT.
Softstart UK 8. Programming Menu Programming Menu The Programming Menu lets you view and change programmable parameters that control how the LV-DS operates. To open the Programming Menu, press the MENU/ENTER button while viewing the status or graph screens. To navigate through the Programming Menu: or button. • to scroll through parameter groups, press the • to open a submenu, press the ENTER button. • to view the parameters in a group, press the ENTER button.
Programming Menu 8.1. 32/64 Softstart UK Quick Setup The Quick Setup Menu makes it easy to configure the LV-DS for common applications. The LV-DS selects the parameters relevant to the application and suggests a typical setting, and you can adjust each parameter to suit your exact requirements. Always set parameter 1A Motor Full Load Current to match the motor's nameplate full load current. The suggested value is the starter's minimum full load current.
Softstart UK 8.2. Programming Menu Standard Menu The standard menu provides access to commonly used parameters, allowing the user to configure the LV-DS as required for the application.
Programming Menu 8.3. 34/64 Softstart UK Extended Menu The Extended Menu provides access to all the LV-DS's programmable parameters.
Softstart UK Programming Menu Default Setting 7 Relay Outputs 7A Relay A Function 7B Relay A On Delay 7C Relay A Off Delay 7D Relay B Function 7E Relay B On Delay 7F Relay B Off Delay 7G Relay C Function 7H Relay C On Delay 7I Relay C Off Delay 7J Low Current Flag 7K High Current Flag 7L Motor Temperature Flag 8 Analog Output 8A Analog Output A 8B Analog A Scale 8C Analog A Maximum Adjustment 8D Analog A Minimum Adjustment Current (% FLC) 4-20 mA 100% 0% 9 Auto-Reset 9A Auto-Reset Action 9B Maximum
Programming Menu 8.4. • Softstart UK Parameter Descriptions 1 Motor Details NOTE Parameter 1B determines the trip current for motor overload protection. The default setting of parameter 1B provides Motor Overload Protection: Class 10, Trip Current 105% of FLA (full load amperage) or equivalent. 1A – Motor FLC Range: Description: Model dependent Matches the starter to the connected motor's full load current. current (FLC) rating shown on the motor nameplate.
Softstart UK Programming Menu 2F – Kickstart Time Range: Description: 0 – 2000 milliseconds Sets the kickstart duration. Default: 0000 milliseconds A setting of 0 disables kickstart. CAUTION Kickstart subjects the mechanical equipment to increased torque levels. couplings can handle the additional torque before using this feature. Ensure the motor, load and 2G – Excess Start Time Excess start time is the maximum time the LV-DS will attempt to start the motor.
Programming Menu • Softstart UK 3 Secondary Start/Stop See the Primary Start/Stop parameters for parameter details. 3A – Start Mode-2 Options: Description: Constant Current (default) Adaptive Control Selects the soft start mode. 3B – Current Limit-2 Range: Description: 100% - 600% FLC Default: 350% Sets the current limit for constant current and current ramp soft starting, as a percentage of motor full load current.
Softstart UK • Programming Menu 4 Protection Levels 4A – Current Imbalance Range: Description: 10% - 50% Default: Sets the trip point for current imbalance protection. 30% 4B – Phase Sequence Options: Description: Any Sequence (default) Positive Only Negative Only Selects which phase sequences the soft starter will allow at a start. During its pre-start checks, the starter examines the sequence of the phases at its input terminals and trips if the actual sequence does not match the selected option.
Programming Menu • Softstart UK 5 Protection Delays 5A – Restart Delay Range: Description: 00:01 - 60:00 (minutes:seconds) Default: 10 seconds The LV-DS can be configured to force a delay between the end of a stop and the beginning of the next start. During the restart delay period, the display shows the time remaining before another start can be attempted.
Softstart UK Programming Menu 6D – Input A Function Options: Description: Motor Set Select (default) The LV-DS can be configured with two separate sets of motor data. To use the secondary motor data, parameter 6D must be set to 'Motor Set Select' and 53, 55 must be closed when a start command is given. The LV-DS checks which motor data to use at a start, and will use that motor data for the entire start/stop cycle. Input Trip (N/O) Input A can be used to trip the soft starter.
Programming Menu • Softstart UK 7 Relay Outputs 7A – Relay A Function Options: Off Main Contactor (default) Relay A is not used. The relay closes when the LV-DS receives a start command, and remains closed as long as the motor is receiving voltage. Run The relay closes when the starter changes to run state. Trip The relay closes when the starter trips (see parameter 16A to 16M). Warning The relay closes when the starter issues a warning (see parameter 16A to 16M).
Softstart UK • Programming Menu 8 Analog Output The LV-DS has an analog output, which can be connected to associated equipment to monitor motor performance. 8A – Analog Output A Options: Current (% FLC) (default) Motor Temp (%) Motor kW (%) Motor kVA (%) Motor pf Current as a percentage of motor full load current. Motor temperature as a percentage of the motor's thermal capacity. Measured motor kilowatts, as a percentage of maximum kW. Measured motor kilovolt amperes, as a percentage of maximum kVA.
Programming Menu Softstart UK NOTE If the starter is manually reset, the resets counter will return to zero. 9C – Reset Delay Groups A&B Range: Description: 00:05 - 15:00 (minutes:seconds) Default: 5 seconds Sets the delay before resetting Group A and Group B trips. 9D – Reset Delay Group C Range: Description: • 5 - 60 (minutes) Default: Sets the delay before resetting Group C trips.
Softstart UK Programming Menu 10I – Mains Reference Voltage Range: Description: 100 – 690 V Default: 400 V Sets the nominal mains voltage for the keypad's monitoring functions. This is used to calculate motor kilowatts and kilovolt amperes (kVA) but does not affect the LV-DS's motor control or protection. 10J – Display A or kW Options: Description: • Current (default) Motor kW Selects whether the LV-DS will display current (amperes) or motor kilowatts on the main monitoring screen.
Programming Menu Softstart UK 15E – Shorted SCR Action Options: Description: 3-Phase Control Only (default) PowerThrough Selects whether the soft starter will allow PowerThrough operation. For critical applications this allows the soft starter to control the motor with two-phase control, if the soft starter is damaged on one phase. PowerThrough only operates after the soft starter has tripped on "Lx-Tx Shorted" and has been reset.
Softstart UK • Programming Menu 16 Protection Action CAUTION Defeating the protection may compromise the starter and motor, and should only be done in the case of emergency. 16A~16M – Protection Action Options: Description: Trip Starter (default) Warn and Log Log Only Selects the soft starter's response to each protection. • • • • • • • • • • • • • 8.5. 8.6.
Programming Menu 8.7. • Softstart UK Setup Tools Setup Tools includes maintenance options to configure the LV-DS's date and time, reset the thermal models or load a standard parameter set. To access the Setup Tools, open the Programming Menu then select Setup Tools. Set Date and Time To set the date and time: 1. Open the Setup Tools. 2. Scroll to the date/time screen. 3. Press the ENTER button to enter edit mode. 4. Press the ENTER and EXIT buttons to select which part of the date or time to edit.
Softstart UK 9. 9.1. 9.2. 9.3. Logs Menu Logs Menu The Logs Menu provides information on events, trips and starter performance. Press the LOGS button to open the Logs Menu. To navigate through the Logs Menu: • to open a log, press the ENTER button. • to scroll through the entries in each log, press the and buttons. • to view details of a log entry, press the ENTER button. • to return to the previous level, press the EXIT button. • to close the Logs Menu, press LOGS.
Application Examples 10. Softstart UK Application Examples 10.1. Installation with Main Contactor The LV-DS is installed with a main contactor (AC3 rated). Control voltage must be supplied from the input side of the contactor. The main contactor is controlled by the LV-DS Main Contactor output, which by default is assigned to Output Relay A (terminals 13, 14).
Softstart UK Application Examples 10.2. Installation with Bypass Contactor The LV-DS is installed with a bypass contactor (AC1 rated). The bypass contactor is controlled by the LV-DS Run Output which by default is assigned to Output Relay B (terminals 21, 22, 24).
Application Examples Softstart UK 10.3. Emergency Run Operation In normal operation the LV-DS is controlled via a remote two-wire signal (terminals 56, 57). Emergency Run is controlled by a two-wire circuit connected to Input A (terminals 53, 55). Closing Input A causes the LV-DS to run the motor and ignore certain trip conditions.
Softstart UK Application Examples 10.4. Auxiliary Trip Circuit In normal operation the LV-DS is controlled via a remote two-wire signal (terminals 56, 57). Input A (terminals 53, 55) is connected to an external trip circuit (such as a low pressure alarm switch for a pumping system). When the external circuit activates, the soft starter trips, which stops the motor.
Application Examples Softstart UK 10.5. DC Brake with External Zero Speed Sensor For loads which may vary between braking cycles, there are benefits in using an external zero-speed sensor to interface with the LV-DS for brake shut-off. This control method ensures that the LV-DS braking will always shut off when the motor has reached a standstill, thus avoiding unnecessary motor heating.
Softstart UK Application Examples 10.6. Soft Braking For applications with high inertia and/or a variable load, the LV-DS can be configured for soft braking. In this application the LV-DS is employed with forward run and braking contactors. When the LV-DS receives a start signal (pushbutton S1), it closes the forward run contactor (KM1) and controls the motor according to the programmed primary motor settings.
Application Examples Softstart UK 10.7. Two Speed Motor The LV-DS can be configured for control of dual speed Dahlander type motors, using a high speed contactor (KM1), low speed contactor (KM2) and a star contactor (KM3). NOTE Pole Amplitude Modulated (PAM) motors alter the speed by effectively changing the stator frequency using external winding configuration. Soft starters are not suitable for use with this type of two-speed motor.
Softstart UK 11. Troubleshooting Troubleshooting 11.1. Protection Responses When a protection condition is detected, the LV-DS will write this to the event log and may also trip or issue a warning. The soft starter's response depends on the Protection Action setting (parameter group 16). Some protection responses cannot be adjusted by the user. These trips are usually caused by external events (such as phase loss) or by a fault within the soft starter.
Troubleshooting Display Frequency Heatsink overtemperature High Level High Pressure Input trip Instantaneous overcurrent Internal fault X L1 phase loss L2 phase loss L3 phase loss L1-T1 shorted L2-T2 shorted L3-T3 shorted Softstart UK Possible cause/Suggested solution The mains frequency has gone beyond the specified range. Check for other equipment in the area that could be affecting the mains supply, particularly variable speed drives and switch mode power supplies (SMPS).
Softstart UK Display Motor overload Motor 2 overload Motor Connection Tx Motor thermistor Troubleshooting Possible cause/Suggested solution The motor has reached its maximum thermal capacity. Overload can be caused by: • The soft starter protection settings not matching the motor thermal capacity • Excessive starts per hour • Excessive throughput • Damage to the motor windings Resolve the cause of the overload and allow the motor to cool.
Troubleshooting Display Time-overcurrent Undercurrent Unsupported option (function not available in inside delta) Vibration Alarm VZC Fail Px Softstart UK Possible cause/Suggested solution The LV-DS is internally bypassed and has drawn high current during running. (The 10A protection curve trip has been reached or the motor current has risen to 600% of the motor FLC setting.) Related parameters: None The motor has experienced a sharp drop in current, caused by loss of load.
Softstart UK Symptom The soft starter does not control the motor correctly during starting. Motor does not reach full speed. Erratic motor operation. Erratic and noisy motor operation. Soft stop ends too quickly. Adaptive Control, brake, jog and PowerThrough functions not working. After selecting Adaptive Control the motor used an ordinary start and/or the second start was different to the first. PowerThrough does not operate when selected.
Accessories 12. Softstart UK Accessories 12.1. Communication Modules LV-DS soft starters support network communication via easy-to-install communications modules. starter can support one communications module at a time. Available protocols: Ethernet (Profinet, Modbus TCP, Ethernet IP), Profibus, DeviceNet, Modbus RTU, and USB. Each soft 12.2. Remote Control Panel (RCP) A remote mounted keypad can be installed with the LV-DS.
Softstart UK 13. Busbar Adjustment Procedure Busbar Adjustment Procedure The busbars on non-bypassed models LV-DS-0360C ~ LV-DS-1600C can be adjusted for top or bottom input and output as required. 09275.B NOTE Many electronic components are sensitive to static electricity. Voltages so low that they cannot be felt, seen or heard, can reduce the life, affect performance, or completely destroy sensitive electronic components.
Busbar Adjustment Procedure Softstart UK NOTE If moving the input busbars, the current transformers (CTs) must also be reconfigured. 1. Label the CTs L1, L2 and L3 (L1 is leftmost when looking from the front of the starter). Remove the cable ties and unscrew the CTs from the bracket. 2. Move the CT bracket to the top of the starter. Position the CTs for the correct phases, then screw the CTs to the bracket.
