Connectable to any general analog-output encoder. Input impedance: 120 ω 1 Vp-p voltage differential input
Max. response frequency 140 kHz for any number of divisions selected
Switch-selectable number of divisions:40, 80, 100, 120, 160, 200, 240, 400, 480, 500, 800, 1000, 1600, 2000, 3200, 4000
Compensation: DC offset, gain and phase
Power supply: 5 V DC (4.5 to 5.5 V) for MJ820; 12 V to 24 V DC (11V to 32V) for MJ821
Compatible with Magnescales linear scales SH12 and SL700 series with PL101

Specifications

Model	MJ820	MJ821
Power supply voltage	DC5 V (DC4.5 to 5.5 V)	DC12 to 24V (DC11 to 32 V)
Power consumption	3 W
Input power supply rise time	100 ms
Surge current (10ms)	4A or less (with 5 V)	3A or less (with 12 V)
Power supply reverse connection prevention	Fuse
I/F input/ output circuit	Voltage-differential line driver/ receiver complying with EIA-422 (SN75C1167 or equivalent)
Communication protocol	Dedicated Fanuc serial interface protocol
Encoder input signal	1Vp-p (Max.1.2Vp-p) impedance 120 ω TYP
Selectable division settings	4000, 3200, 2000, 1600, 1000, 800, 500, 480, 400, 240, 200, 160, 120, 100, 80, 40
Maximum response frequency for encoder input	140 kHz
Alarms	"1" is sent to a designated flag at time of speed alarm and level warning All LEDs flash at the time of compensated data backup error
Operating temperature and humidity range	0 to 55 °C (no condensation)
Storage temperature and humidity range	-20 to 65 °C (20 to 90%RH)
Mass	380 g
Accessories	Power supply plug...1 (MJ821 only) Connector cap...1 Supplement...1 Binding band...1 (MJ821 only) Ferrite core...1 Mounting screws (4 x 10)...2