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MT Magnetic Linear Encoder

The MT Series magnetic linear encoders are non-contact type with a measuring length up to 50 meters (164 ft).

The encoder is used to convert linear displacement of essential machine components into electrical signals providing information about the value and direction of the displacement.

The encoder consists of metal based magnetic band MP, reading head and protective steel cover CV. The length of magnetic band could be up to 50 meters. These can be supplied with external zero signal actuator (magnet), which allows usage one of many reference marks made on magnetic band.

Zero signal actuator is not necessary when the magnetic band with reference marks made according customer requirements (MP200Z) is used. Encoders can also be supplied with protective aluminium support SP (instead of protective cover CV), which is mounted on machine for magnetic band protection.

The MT series magnetic encoder comes in two (2) output signal versions:

• MT-F - Square-wave signals, with integrated subdividing electronics for interpolation.

• MT-AV - Sinusoidal signals, with amplitude approx. 1 Vpp, which require external subdividing electronics.

MECHANICAL DATA

Version	MT-F	MT-AV
Max. traversing speed	-	12 m/s
Measuring length (ML)	up to 50 m. (max. 20 m. with MP500)	up to 50 m. (max. 20 m. with MP500)
Repeatability	± 1 increment	± 1 increment
Max. measuring frequency	300 kHz	-
Power supply	(5...28) DC ± 5 % V	(5...28) DC ± 5 % V
Current consumption without load	60 mA max	90 mA max
Current consumption with load	140 mA max (with 5 V and R = 120 Ω); 115 mA max (with 12 V and R = 1.2 kΩ); 90 mA max (with 28 V and R = 1.2 kΩ)	110 mA max (for 5 V and R = 120 Ω)
Phase shift between signals	90° ± 5°	90° ± 5°
Protecion (IEC 529)	IP67	IP67
Operating temperature	0...+50°C	0...+50°C
Storage temperature	+20...+80°C	+20...+80°C
Permissible humidity	100 % non condensing	100 % non condensing
Permissible vibration (55...2000 Hz)	300 m/s²	300 m/s²
Permissible shock (11 ms)	1000 m/s²	1000 m/s²
Output signal shape	Square-wave TTL pulses	Sine-wave
Output signals	6 - two main + one zero signal and their complementary	Two main + one zero (square-wave pulse)
Output scheme	Line driver (push-pull optional)	Line driver; push-pull
Weight of reading head	40 g	40 g
Standard cable length	2 m	2 m
Max. cable length of head	10.0 m	10.0 m
Max. cable length of encoder (2 m of head + adapter)	100.0 m	100.0 m
Electrical protections	from inversion of power supply polarity; from short circuit on output port	from inversion of power supply polarity; from short circuit on output port