Field of Application

• Alignment of Rail MiniCoders GEL 244 K, KN, KM
• Testing of various encoders with sinusoidal outputs
• Floating measuring

Function

With the testing device the sine and cosine wave signals of the encoder are checked for admissible signal levels.

The 3½-digit LC display (background lightened) displays the following measurands:

• amplitude of sine and cosine track (voltage)
• offset values of both signal tracks (voltage)
• phase deviation between signal tracks with respect to 90° (degree)
• correct function of reference track (voltage)

Changing the measurement range is effected by means of the laterally installed push button (with each actuation the measurement range is scrolled down). The active range is indicated by the respective LED.

Connections

The encoder is to be wired to a 10-pole terminal strip (screw contacts) and to be connected to the testing device (unique orientation). Voltage supply to the testing device is effected either via the included mains adapter (5 V, stabilized) or by means of a 5 V supply connected to a 2-pole terminal strip.

Technical Data

• Operating voltage -    5 VDC ± 5%
• Supply current without sensor -    ≤ 100 mA
• Operating temperature -    +10 … +40 °C
• Frequency range -    0.1 … 4 kHz
• Dimension (WxHxD) -    84´157´30 mm
• Weight excl. mains adapter -     200 g

Measuring error of testing device:

• Amplitude (peak to peak) Tracks A and B -     ± 2% (0.1…2 kHz)
• Amplitude (zero peak) Track N -    ± 10% (0.1…2 kHz)
• Offset Tracks A, B, N -    ± 0.2%
• Phase mismatch relative to 90° -    ± 0.2°

Measuring units and tolerances (admissible range):

• Amplitude (peak to peak) Track A -     0.800 … 1.100 V_PP
• Amplitude (peak to peak) Track B -    0.800 … 1.100 V_PP
• Offset Track A -   -0.060 … +0.060 VDC
• Offset Track B -    -0.060 … +0.060 VDC
• Phase mismatch relative to 90° between Tracks A and B -    -5.00 … +5.00 degree
• Amplitude (zero peak) Track N -    ≥ 0.200 V
• Offset Track N -    -0.400 … - 0.100 VDC

Connection Diagram

Measurements (assembly errors):

Amplitude Track A: 0.800 … 1.100 V_PP







Amplitude Track B: 0.800 … 1.100 V_PP








Offset Track A: -0.060 … +0.060 VDC







Offset Track B: -0.060 … +0.060 VDC








Phase Track A to Track B (deviation from 90°):



-5.00 … +5.00 degree


Zero mark

Measuring of the reference track (N) – amplitude and offset – for monitor purposes only. For correction the zero mark must be adjusted mechanically.

Amplitude (zero peak) Track N: > 0.200 V

Offset Track N: -0.400 … -0.100 VDC