Mitsubishi Electric MELSEC-LD77MS2 User Manual page 65

Serial absolute synchronous encoder specifications
Item
Model name
Ambient temperature
Resolution
Transmission method
Direction of increasing addresses
Protective construction
Permitted speed at power ON
Permitted speed at power OFF
(Note-2)
Permitted axial loads
Runout at input shaft tip
Start friction torque
Recommended coupling
Permitted angular acceleration
Vibration resistance
Shock resistance
Internal current consumption [A]
Mass [kg]
Connecting cable [m(ft.)]
Communications method
Transmission distance
(Note-1): When "o-ring" is required, please purchase separately by customers.
(Note-2): If it exceeds a permitted speed at power OFF, a position displacement is generated.
Specifications
Q171ENC-W8
-5 to 55°C (23 to 131°F)
4194304PLS/rev
Serial communications
(Connected to MR-J4-B-RJ)
CCW (viewed from end of shaft)
Dustproof/Waterproof
(IP67: Except for the shaft-through portion.)
Radial load : Up to 19.6N, Thrust load : Up to 9.8N
0.02mm(0.00079 inch) or less,
(15mm(0.59 inch) from tip)
0.04N•m (20°C (68°F))
Bellows coupling
5G (50 to 200Hz)
50G (11ms or less)
Q170ENCCBL_M
(_Cable length : 2 (6.56), 5 (16.40), 10 (32.81),
20 (65.62), 30 (98.43), 50 (164.04))
Differential driver/receiver
Up to 50m (164.04ft.)
2 - 5
Chapter 2 System Configuration
(Note-1)
3600r/min
500r/min
2
40000rad/s
0.2
0.6