ELECTRICAL SPECIFICATIONS - Standard Model Smart-Arms
2 Absolute Rotary Encoders - Standard Equipment for X & Y Feedback (horizontal position coordinates) |
| Power Supply |
Operating Voltage |
10.8 - 26.4 VDC * |
| Current Consumption |
70mA max. each encoder (x2) |
| * To be supplied by Class II source |
| Fastener Location Accuracy |
0.25" R (6.4mm) with 10 Bit Input |
| Encoder Accuracy |
~10.5 Arc Minutes with 10 Bit Input |
| Output |
Output Type |
NPN open collector |
| Output Logic |
Negative logic (active low) |
| Residual Voltage |
0.4V min. |
1.5V max. |
| Sinking Current |
16mA (x2) |
32mA (x2) |
| Load Power Supply Voltage |
DC 35V or less |
| Short-circuit Protection |
Not Protected |
| Resolution |
1024 |
| Flying Leads |
Number of Cables & Conductors |
7mm ø cables (x2) with 12 color-coded conductors and 1 ground shield in each (see Pin-Out below) |
| Wire Size & Length |
26 Awg ea. conductor x 55" long cables (from tool arm rear pivot) |
| Wire Pin-Out |
Wire Color |
Connection |
Note; The sheild wire (GROUND) is not connected to the encoder body. The encoder body is connected to the 0V line through the capacitor.
Use Gray Code Card with a PLC or convert Gray Code to binary numbers. |
| Blue |
O VDC |
| Brown |
+12/24 VDC |
| Black |
bit 0 (20) |
| Red |
bit 1 (21) |
| Orange |
bit 2 (22) |
| Yellow |
bit 3 (23) |
| Green |
bit 4 (24) |
| Purple |
bit 5 (25) |
| Gray |
bit 6 (26) |
| White |
bit 7 (27) |
| Black/White |
bit 8 (28) |
| Red/White |
bit 9 (29) |
| Shield |
GROUND |
ENVIRONMENTAL CONDITIONS for ENCODERS |
| Ambient Temperature |
Operating: -10 to 70° C |
| Storage: -25 to 85° C |
| Ambient Humidity |
25 - 85% RH (no condensation) |
| Protection Construction |
IEC Standard IP65 |
| (Dust-proof, Splash-proof type) |
| Smart-Arm medium-duty encoders are designed and built for industrial environments. However, as you would with any precision industrial electronics, avoid excessive and unnecessary shock and impact to encoders. Encoders are manufactured by KOYO Electronics CO, LTD, Japan. |
SPECIFICATIONS on VPF (Vertical Position Feedback)
Model # Suffix = VPF (example; EL815-SA-VPF) |
| VPF provides an optional 3rd or "Z" axis on Smart-Arms by adding a LRT (Linear Resistive Transducer) to the ETA float cylinder. |
| Control Required- 0-10 VDC Analog Inputs up to 12 Bit Resolution |
| Total Cylinder Stroke |
2-1/2 inches (63.5 mm) |
| Total Torque Arm Vertical Travel |
17-1/2 inches (445 mm) |
| Signal Input |
10 VDC |
| Position Repeatability at Fastener Tool using 12 Bit Resolution |
< 0.025" (.65 mm) EX option slightly less accurate |
| Variable Resistance |
~ 1 KΩ per inch (2.5 KΩ total) |
| Linearity |
± 1% of Cylinder Stroke |
| Resolution |
Infinate |
| Input Impedance Required |
1 Mohm |
| life expectancy |
~ 10,000,000 cycles |
ENVIRONMENTAL CONDITIONS for VPF |
| Compressed Air Quality |
Clean, Dry, Non-lubed Air |
| Air Filtration |
5 Microns |
| Ambiant Temperature |
0° - 200° F |