Yaskawa SERVO DRIVE Industrial Servopack 3-PHASE 6 HP 200-230 V SGDB-60ADS-SY44

Yaskawa SERVO DRIVE Industrial Servopack 3-PHASE 6 HP 200-230 V SGDB-60ADS-SY44

Product number: SGDB-60ADS-SY44
Description: SGDB-60ADS-SY44 is an Drives-AC Servo manufactured by Yaskawa
Drive Type: SGDB AC Servo Drive
Rated Output: 6.0kW
Supply Voltage: 200V
Model: With multiple position control functions
Applicable Motor Series: SGMG/SGM
Option Specifications: None
Modification: None

The SGDB Sigma Series Servopacks are Amplifiers for the Sigma Series of AC Servos. Designed for applications requiring multi-drives, the SGDB can be used for speed control, torque control, and position control. A digital operator can be used to set parameters for a Servopack.

Features
230VAC Three-Phase Input Power
Accepts an Analog Voltage Speed Reference
Three Internally Set Speeds
Compact Design
Easy Operation

Do not assume 75 percent flow equals 75 percent load. For fans and pumps, the load varies as the
cube of the fan or pump speed.
100 percent flow: 100 horsepower X 1.003
= 100 horsepower.
75 percent flow: 100 horsepower X 0.753
= 42.2 horsepower
50 percent flow: 100 horsepower X 0.503
= 12.5 horsepower
Calculate new Energy Consumption at each flow level with ASD:
100 hp
--------- X 0.746 = 81 kW X 2 hours/day X 7 days/week X 52 weeks/yr = 58,968 kWh
0.92
42.2 hp
--------- X 0.746 = 34.2 kW X 12 hrs/day X 7 days/week X 52 weeks/yr = 149,386 kWh
0.92
12.5 hp
--------- X 0.746 = 10.1 kW X 6 hrs/day X 7 days/week X 52 weeks/yr = 22,058 kWh
0.92
Total Energy Use: 58,968 + 149,386 + 22,058 = 230,412 kWh
Yearly electric cost with the ASD:
34.2 kW X $5/month X 12 months = $2052.00
230,412 kWh/year X 0.04/kWh = $9,216.48
Total: $11,268.48
Yearly Electric Cost Savings: $28,477.20 - $11,268.48 = $17,178.72
Simple payback: ASD Cost: $15,000 installed
$15,000
------------- = approximately 0.87 years or 10.5 months
$17,178.72
Installation of the ASD makes sense as long as it will last at least 0.87 years. This ASD was rated
with a service life of 50,000 hours.
20 hours/day X 7 days/week X 52 weeks/year = 7280 hours/year operation.
50,000 hours
-------------- = 6.9 years average life in this operation
7,280 hours

Firstly, the reluctance of the iron paths is very much less than the air paths which they have replaced, so the total Xux produced for a givenMMF is very much greater. (Strictly speaking therefore, if the MMFs and cross-sections of the coils in Figures 1.6 and 1.7 are the same, many more Xux lines should be shown in Figure 1.7 than in Figure 1.6, but for the sake of clarity similar numbers are indicated.) Secondly, almost all the Xux is conWned within the iron, rather than spreading out into the surrounding air. We can therefore shape the iron parts of the magnetic circuit as shown in Figure 1.7 in order to guide the Xux to wherever it is needed. And Wnally, we see that inside the iron, the Xux density remains uniform over the whole cross-section, there being so little reluctance that there is no noticeable tendency for the Xux to crowd to one side or another.

Before moving on to the matter of the air-gap, we should note that a question which is often asked is whether it is important for the coils to be wound tightly onto the magnetic circuit, and whether, if there is a multi-layer winding, the outer turns are as eVective as the inner ones.
The answer, happily, is that the total MMF is determined solely by the number of turns and the current, and therefore every complete turn makes the same contribution to the total MMF, regardless of whether
it happens to be tightly or loosely wound. Of course it does make sense for the coils to be wound as tightly as is practicable, since this not only minimises the resistance of the coil (and thereby reduces the heat loss)
but also makes it easier for the heat generated to be conducted away to the frame of the machine.

OTHER SUPERIOR PRODUCTS