| Type |
Ø50mm shaft type multi-turn absolute rotary encoder |
| Model |
EPM50S8-1013-B-S-24 |
EPM50S8-1013-B-PN-24 |
| Resolution |
Single-turn |
1024-division (10-bit) |
| Multi-turn |
8192-revolution (13-bit) |
| Rotation limit when power off*1 |
±90° |
| Electrical specification |
| Output |
Output code |
24-bit, Binary 2 code |
Binary 2 code |
| Control Output |
SSI (Synchronous Serial Interface) Line driver
[Low]-Sink current: Max. 20mA, Residual voltage: Max. 0.5VDC-
[High]-Sink current: Max. -20mA, Output voltage: Min. 2.5VDC- |
Parallel NPN open collector output
Sink current: Max. 32mA,
Residual voltage: Max. 1VDC- |
| Output signal |
Single-turn data, Multi-turn count, OVF alarm*2 |
| Output logic |
— |
Negative logic output |
| Response time (rise/fall) |
— |
Max. 1μs
(cable: 2m, I sink = 32mA) |
| Input frequency |
Input signal |
Single-turn data reset *3, Multi-turn count reset *4, Direction, Clear |
| — |
Latch |
| Input level |
0-1VDC- |
| Input logic |
Low active, Open or High for common use |
| Input Time |
Single-turn data reset *3, Multi-turn count reset *4, Direction, Clear: Over 100ms |
| — |
Latch Over 500μs |
| SSI clock input |
Input level |
5VDC-±5% |
— |
| Input frequency |
100kHz to 1MHz |
— |
| Max. response frequency |
— |
50kHz |
| Power supply |
12-24VDC ±5% (ripple P-P: max. 5%) |
| Current consumption |
Max. 150mA
(disconnection of the load) |
Max. 100mA
(disconnection of the load) |
| Insulation resistance |
Over 100MΩ (at 500VDC megger between all terminals and case) |
| Dielectric strength |
750VAC 50/60Hz for 1 minute (between all terminals and case) |
| Connection |
Axial/Radial cable type (cable gland) |
| Mechanical specification |
Starting torque |
Max. 70gf·cm (0.0069N·m) |
| Moment of inertia |
Max. revolution*5Max. 40g·cm 2 (4×10 -6 kg·m 2 ) |
| Shaft loading |
Radial: 10kgf, Thrust: 2.5kgf |
| Max. revolution*5 |
3,000rpm |
| Vibration |
1.5mm amplitude at frequency of 10 to 55Hz (for 1 min) in each X, Y, Z direction for 2 hours |
| Shock |
Approx. Max. 50G |
| Environment |
Ambient temperature |
-10 to 70 °C, storage: -25 to 85 °C |
| Ambient humidity |
35 to 85%RH, storage: 35 to 90%RH |
| Protection structure |
Axial cable type: IP64 (IEC standard),
Radial cable type: IP50 (IEC standard) |
| Cable |
Ø6mm, 10-wire, 2m, Shield cable
(AWG28, core diameter: 0.08mm, number of cores: 19, insulator diameter: Ø0.8mm) |
Ø6mm, 17-wire× 2, 2m, Shield cable
(AWG28, core diameter: 0.08mm, number of cores: 17, insulator diameter: Ø0.8mm) |
| Accessories |
Bracket, coupling |
| Weight *6 |
Approx. 409g (approx. 324g) |
Approx. 560g (approx. 475g) |
*1: It calibrates the multi-turn counts by comparing single-turn data before/after power off without counting multi-turn counts when power is off. It shall be used on the condition that no overrated revolution occurred since proper multi-turn data may not be available if any revolutions occurred over ±90° from the position when power is off.
*2: OVF alarm is ON when multi-turn count is out of counting range (0 to 8191 revolution).
*3: Single-turn data will be reset as [0] when single-turn data reset is input.
*4: Multi-turn count will be reset as [0 revolution] when multi-turn count reset is input.
*5: In case of Parallel type model, Make sure that Max. response revolution should be lower than or equal to max. allowable revolution when selecting the resolution.
[Max. response revolution (rpm) = Max. response frequency|Resolution × 60 sec]
*6: The weight includes packaging. The weight in parenthesis is for unit only.
*Environment resistance is rated at no freezing or condensation. |