SANKEN ELECTRIC : Inverter

SAMCO-vm05 Series (SHF/SPF, SBT)

Software Functions

Control algorithms for various types of applications are provided as standard, and through the provision of software customized to customer requirements, each inverter can be used as a dedicated inverter that precisely meets system needs.

Function	Applications	Purpose	Description
Rating selection function	SBT, general industry	Selection of optimal rating	In the 200 V type SBT series, 150%/minute for the H mode and 120%/minute for the P mode can be selected based on the overload capacity. Select the rating according to the motor capacity and load status.
Upgrade function	Special applications	Function expansion	Control software can be upgraded according to special applications and requests.
Communication function	General industry	Centralized monitoring control	RS-232C and RS-485 serial communication functions are provided as standard.
Frequency setting	General industry	Frequency range extension	A wide output frequency range from 0.05 to 600 Hz can be set (V/f mode).
Terminal board step setting	General industry	Digital frequency setting from remote location	The frequency can be gradually raised and lowered with the up and down control input terminals.
Multifunctional input terminal	General industry	Multi-functionalization of terminal board input function	The contact input terminals for 8 channels can be allocated to multiple multifunctional input terminals.
Multifunctional output terminal	General industry	Multi-functionalization of terminal board output function	The open collector output terminals for 3 channels can be allocated to multiple multifunctional output terminals.
Multifunctional relay output	General industry	Multi-functionalization of relay output	Relay output of various statuses, in addition to during alarms can be performed.
Analog output	General industry	Monitor and sequential operation	Two channels of analog output of 0 to 10 V are provided, enabling the selection of frequency, current, voltage, and other data.
Frequency counter output	General industry	Frequency connection with upper-level controller	Counter outputs proportional to the inverter output frequency can be output up to 10 times to any 3-channel open-collector output terminal.
Analog input	General industry	Loading of command value and feedback values	Command values such as frequency and pressure, and various feedback signals can be input with analog signals of 0 to 5 V, 10 V, and 4 to 20 mA.
Analog input filter	General industry	Reduction of peripheral devices	A power supply of 24 VDC, 150 mA max. can be provided to external peripheral devices.
User-supplied power supply	General industry	Reduction of peripheral devices	A power supply of 24 VDC, 150 mA max. can be provided to external peripheral devices.
User default function	General industry	Improvement of operability and maintainability	The setting value of the status following function code adjustment data verification can be saved as an initial value.
Changed data display function	General industry	Improvement of operability and maintainability	The changed function code number and data contents can be displayed sequentially.
Copy function	General industry	Improvement of operability	The current function code adjustment data can be copied via the operation panel.
Constant-time inching function	Circular weaving machines, machine tools	Improvement of position accuracy	Even if the operation switch-on time differs according to the operator, constant-time operation is performed, for improved position accuracy. (Minimum operation time function)
I/O open-phase detection function	General industry	Improvement of protection functions	Protection is performed by detecting open phases for inverter input and output. The availability of functions can also be selected.
V/f separation function	Winders	Free torque control	The inverter output frequency and voltage can be freely changed and the V/f ratio type and complete separation type can be selected for the load.
Free V/f pattern	Lifts, elevators	Free torque control	In addition to linear V/f patterns, two intermediate points can be freely set.
Cooling fan lock detection	Small-capacity machines, general	Improvement of protection functions	Protection is performed for small-capacity equipment by detecting the cooling fan lock status. Moreover, the availability of on/off control for the cooling fan can be selected.
Set frequency gain function	Winders	Fine adjustments of sequential operation	To perform sequential operation of multiple inverters, the interlocking ratio of each inverter can be adjusted, for example, with a variable resistor.
Energy saving control	Air conditioning, pumps	Maximum efficiency operation	Energy-saving operation that maximizes motor efficiency is performed using the energy-saving function, V/f automatic energy-saving function, sensorless vector control automatic energy saving function.
PID control operation	Air conditioning, pumps	Automatic process control	Automatic process control according to various control factors such as speed, flow amount, and pressure is enabled through PID control.
PID, V/f switch operation	Air conditioning, pumps	Automatic/ manual switching	Feedback control through PID and open loop control with V/f constant control can be switched with a control terminal input signal. This is effective for switching during production and adjustments, and during preparations.
Vector, V/f switch operation	Conveyers	Operation mode switching	Sensorless vector control and V/f constant control can be switched with the control terminal input signal. This is effective for switching during production and adjustments, and during preparations.
Multi-speed operation	General industry	Variable speed	Depending on the combination of control input terminals, variable speed operation of up to 8 different speeds is possible.
Acceleration-deceleration switc h operation	General industry	Variable acceleration/ deceleration time	Depending on the combination of control input terminals, the acceleration/deceleration time toward the set frequency can be switched between up to 4 levels.
Figure S acceleration/ deceleration operation	Lifts, elevators	Shock-less acceleration/ deceleration	The speed at acceleration/deceleration start, intermediate time, and acceleration/deceleration end can be freely adjusted with a curve (figure S). This function is ideal for shock-less operation, such as for elevators and conveyor belts.
Operation signal hold function	General industry	Operation with one-shot connection signal	Continuous operation is possible even if using operation signal contacts by using, for example, a one-shot momentary switch.
Simple scheduled operation	General industry	Scheduled operation following the set pattern	Scheduled operation is performed with up to 7 patterns for which frequency, time, acceleration/deceleration time, operation direction, etc., have been set in advance.
Disturbed operation	Spinning machinery	Variable speed according to bobbin diameter	Alternate operation is performed during the setting time for high-speed frequency and low-speed frequency. Modulation can be added to the high and low frequencies. It is suitable for the easy bobbin winding of weaving machines.
Carrier frequency	General industry	Noise reduction	The inverter output switching carrier frequency can be freely adjusted. This function is effective for reducing motor noise and other mechanical noises, as well as leak current.
Unstable phenomena removal function	Extruding machines and the like	Current ripple elimination	This function reduces output current instability that tends to occur in the case of low frequency or light load.
Monitor display	General industry	Status monitoring	This function displays the frequency, current, voltage, load factor, etc., on the operation panel LEDs. Moreover, when no unit display is selected, statuses such as feedback frequency, fin temperature, and direct current voltage, can be displayed.
Current control function	General industry	Improvement of protection functions	This function automatically performs acceleration in the optimum acceleration time in order to reduce the overcurrent during inverter acceleration to the set value.
Overvoltage stall prevention function	Machine tools	Improvement of protection functions	This function automatically adjusts the deceleration curve to reduce the regeneration voltage during inverter deceleration. Function availability can also be selected.
Momentary power failure restart function	Air conditioning, pumps	Trip-less operation	Following power recovery after a momentary power failure, shock-less restart is automatically performed through a scooping-up operation.
Momentary drop compensation function	Winders, inertial load	Trip-less operation	Using this function, the inverter is placed in the regeneration status through deceleration, the chronic energy on the load side is effectively used, and the time until a trip is considerably lengthened, in order to suppress undervoltage trips upon occurrence of a momentary power failure.
Scooping-up operation	Fans, inertial load	Trip-less operation	Even when the inverter operation command is set to on with the motor in the freewheel-spinning status, the number of motor rotations and the rotation direction are detected, and shock-less start is performed from the current rotating speed. If the rotation direction differs from the command, deceleration is performed after scooping-up, and acceleration is performed again in the command direction.
Auto alarm recovery function	Air conditioning, pumps	Trip-less operation	Even if the inverter stops abnormally, the inverter starts again automatically following analysis of the abnormality. Upon restart, scooping-up operation is performed for shock-less operation.
Alarm details readout	General industry	Anomaly analysis	The inverter alarm stop history is saved for up to five occurrences. Anomaly analysis can be done from the operation panel.
Constant pressure feedwater system control	Pumps	Constant feedwater pressure control for multiple pumps	A constant pressure feedwater system combining multiple pumps can be built by installing an SWS option board. A periodic switching function for extending pump life, and a pump selection function provided through control terminals whose maintainability has been improved, are provided.
Winding control	Winders	Constant tension, wide speed range winder, feeding control	Control of winders, feeders, rewinders, etc., supporting a wide range of line speeds for a constant tension is possible without a dedicated controller, through dedicated winding patterns and a dedicated dancer correction control function.
Position control	Machine tools	Point-to-point control, continuous path control	Speed control and position control are enabled by mounting the SB-PG option board and performing feedback of the speed detected by the PG speed sensor. In the case of position control, by directly setting the travel distance from the operation panel, point-to-point control is enabled even when there is no command pulse.
Current output function	General industry	Current monitoring, sequential operation	By mounting the SAS option board, current output proportional to inverter output frequency is performed with 4 to 20 mA. A gain of up to 20 times can be set.