SC903NN-001-01 CNC servo controller

Description

SC903NN-001-01 CNC servo controller

SC903NN-001-01 CNC servo controller

The drive is capable of direct line operation. All units are fully isolated and do not require external isolation transformers. Also, the inrush current on the connection to the line is internally limited to a safe level for the drive. There are no voltage selection or ranging switches required to operate within the specified voltage input ranges. It is the responsibility of the user to supply appropriate fuses or circuit breakers in the J1 AC Power motor power lines to comply with local electrical codes.

The control input power required depends on the option card plugged in and the load on user +5 Vdc. It should be between 15 and 30 Watt. The ac input motor power depends on output power and the losses in the power stage. The control power input has a single UL/CSA rated fuse in line with one of the ac line inputs.

Position Loop
Maximum Stable Bandwidth > 100 Hz
Update Period 1 mSec
Position Range 0 to ± 32768 Rev
Position Error Range 0 to ± 4500 Rev
Command Resolution 2-16 Rev = 0.33 arc min
Position Loop Compensation Parameters
KPP Range 0 Hz to > 150 Hz
KPP Resolution 16 bit
KVFF Range 0 to 199.9%
KVFF Resolution 16 bit

General
Max Delay Ac Line To Control Supply On 0.75 Sec
Max Delay Ac Line To Fully Operational 2.0 Sec
Fully operational by “A” of
“PACSCI” LED status message

MOTOR POWER
SC9x2/3 7.5 mm Pluggable TB
SC9x4 7.62 mm Fixed TB
SC9x5 DIN Rail Fixed TB

Although DCS adopts advanced technology and powerful functions, there are still many problems in practical applications, including design, installation, operation, management, and maintenance. Data shows that unit trips caused by thermal control protection malfunctions due to DCS (including DEH) account for a large proportion of all thermal control protection malfunctions, and there is a growing trend with the widespread application of DCS. In 2001, there were a total of 41 thermal control protection malfunctions for units above 100 MW in our province, of which 19 were caused by DCS, accounting for 46.3% of the total thermal control protection malfunctions; In 2002, among the 24 thermal control protection malfunctions that caused unit trips, the DCS cause was 13, accounting for 54.2% of the total thermal control protection malfunctions; In 2003, among the 44 thermal control protection malfunctions that caused unit trips, the DCS cause was 25, accounting for 56.8% of the total thermal control protection malfunctions. Currently, the power supply is tight, and analyzing and solving various problems that arise in the application of DCS is particularly important for ensuring the safety and economic operation of units.

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