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Catalogue IG Servomotor Brochure

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serva dinamici

Model Numbering system:

IG 34 A S

64 - EC 2000 - S

" ~l--

Feedback Option

EX = Encoder only

HX = Halls only

HE = Halls+Encoder

EC = Encoder with

commutation tracks

I—Voltage Gradient

Refer To Voltage Gradient Availability Table

NEMA

17 23 34 42

Motor Stade Length ■

Housing Option

F = Flying Leads ⁶S = Shielded Cable⁷B = Brake ⁷ ⁸

Encoder Resolution (ppr) '

1. NEMA 17 is only available In F housing

2. Refer to Dimensions for the exact length and shaft options

3. Keyway shaft is provided only on NEMA 23, 34 and 42 Servomotors

4. Consult factory for available resolution

5. The F & B housings are rated IP40 while the S housings are rated IP55. Optional IP64 is available on S housing

6. The F housing option comes with 18 inches flying leads

7. The S or B housing option comes with 36 inches shielded cable

8. The S or B housing options are only available on NEMA 34 and 42 Servomotors

Shaft ²'2-

Imperial: Metric:

S = Smooth X = Smooth

F = Flat Y = Flat

K = Keyway Z = Keyway

Voltage Gradient Availability for the IG Servomotor:

Voltage Constant K_E

130

180

260

360

(V/kRPM)

Frame

IG 17

IG 23

Size

IG 34

IG 42

Motor Performance Curves:

There are two cases to select a motor:

Case I: The bus voltage (Vbus) and torque (T) are known.

The speed is related to the torque and bus voltage according to the following formula:

(1)

where

- b+4bF-

4ac

a = KE +

I 60 )

n -

IG Torque Speed Curve

2TRK

b--

R² - V_b„

c —

Case II: The bus voltage (Vbus) and speed (n) are known.

The torque is related to the speed and bus voltage according to the following formula:

-Z-

(2)

where

_R2 _| (l000nnPLY I 60 )

f + Jf² - 4eg

e -

2RK_En

g = ke n² - v²_m

Speed (krpm)

Definitions of Symbols

n is the motor speed, krpm.

Vbus is the bus voltage, VDC.

Ke is the voltage constant, V/krpm.

Kt is the torque constant, Nm/Amp (peak).

T is the torque, Nm.

P is the number of poles. For IG motors, P=8. R is the motor resistance, Ohm L is the motor inductance, Henry. ©is equal to 3.14

I I Intermittent duty zone

I I Continuous duty zone

Tp : Peak stall torque

Tcs : Continuous stall torque

nm : No load speed at the bus voltage, Vbus

Note: While using Eq. (1) and Eq. (2) you must use values with the above specified units.

100001-00A