P- / Q-encoder

The following data are typical guidelines and can therefore deviate for the specific motor.

Encoder type

Technical description

Manufacturer /
designation
P

Heidenhain

ECI 1118

ECI 1319

ECI 119

Resolution: 18 / 19 bit/revolution 2)

Measuring principle: inductive, permanent magnets ( )
Protocol: EnDat 2.2 light

Electronic type plate ( )
Q Heidenhain
EQI 1130
EQI 1331

Resolution: 18 / 19 bit/revolution 2)

Measuring principle: inductive ( )

Protocol: EnDat 2.2 light

Electronic type plate ( )
2) depends on motor size

 

Output signal EnDat 2.2 light

The EnDat protocol transfers digital data between an encoder and the evaluation electronics according to the RS485 specification. The absolute positions are transferred synchronously to the cycle signal (CLOCK ) specified by the evaluation electronics.

EnDat 2.2 has an expanded command set compared to EnDat 2.1. The command set of EnDat 2.1 is a component of EnDat 2.2.

EnDat 2.2 light means, that the encoder supports EnDat 2.2, which is used only with the commands of EnDat 2.1 from the AMK controller.

Output signal (SIN/COS track)

Signal sequence depicted for clockwise turning of the motor shaft with direction of view toward the A bearing side of the shaft.

2,5 V
Technical data of the encoders
Data

P-encoder

Q-encoder

ECI 1118

ECI 1319

ECI 119

EQI 1130

EQI 1331
Voltage supply

VDC

5 ±5 %

4.75 - 10

5 ±5 %

5 ±5 %

4.75 - 10
Current consumption without load (5 V)

mA

120

80

135

145

90
Mechanically permitted speed

1/min

15000

15000

6000

12000

12000

Analog signals (SIN/COS)
Analog resolution

Per./rotation

16

32

32

16

32
Signal level

VSS

1 ±0.2

1 ±0.2

Offset

V

2.5 ±0.5

2.5 ±0.5

Absolute position values

Signal characteristic

 

RS485

RS485
Digital resolution

Pos./rotation

262144
(18 Bit)

524288
(19 Bit)

524288
(19 Bit)

262144
(18 Bit)

524288
(19 Bit)
Rotations

 

1

4096 (12 Bit)

Output circuit

Z0 = 120 Ω