The model RG optical shaft encoder features rugged construction and flexible mechanical configurations making it ideally suited for many industrial shop-floor environments. Output pulses are generated when a shatter-proof optical disk internally mounted on the encoder shaft and having the specified output pattern is read by 1, 2, or 3 opto-sensors depending on the number of outputs required. The matched LED and opto-sensor pairs, compensation circuitry and rugged aluminum housing assure continuous, reliable operation in industrial environments over a 0° to 70° C temperature range.
The electrical outputs are designed to be compatible with most instruments, electronic counters, PLC's and other similar industrial motion control devices. Optional differential line driver outputs allow for longer cable runs (hundreds of feet) and higher electrical noise immunity.
Features and Options:
Size 22.5 housing
Resolutions up to 2400 CPR
Dual or triple output models with any combination of CPR on each output
Cable: Pre-wired 10' (3m) shielded cable, or optional connector with cable. (other lengths are available)
No. of Pins
2 Not available as a side connector.
NPN or PNP transistor outputs:
A B C D E
Common +vdc Output Z Output A Output B
Black Red Brown* White Green
*Output Z is green if Ouput B is not used.
Line Driver Outputs:
A B C D E F - -
F D A H B I C J
Common +vdc Output A Output A Output B4 Output B4 Output Z Output Z
Black Red White Blue2 Green Brown Yellow3 Orange3
1Only used if A, B, and Z are required. 2Output A is green if Output B is not used. 3Output Z is green and Output Z is brown if Outputs B and B are not used. 4These are Outputs Z/Z if B/B are not used.
5 12 or 15 24 7 to 20 ("SR" supply voltage) 12 to 27 ("12R" supply voltage) 8 to 30 ("8-30" supply voltage)
R Values2,3 (Kohms)
1 2.2 3.3 2.2 3.3 3.3
1Others available on special order 2See output circuit figure 1 below 3R is removed for open collector Current: 50 ma max (no load) 100 ma max (line driver) Ripple: 2% max Regulation: ±5% Reverse polarity protected
Operating temperature: 0° to 70°C
Pulse rate: 0 to 30 kHz
Counts per Revolution: 1 to 2400
Output Circuit (Figure 1; specify when ordering): Current sinking NPN transistor with pull-up resistor (50 ma max) Current sinking NPN open collector (50 ma, 30 vdc max) Current sourcing PNP with pull-down resistor (50 ma max) RS422 differential line driver (MC3487 device; must be ordered with 5, 5R or 8-30 Supply Voltage)
Output Waveshape: (See Figure 2) Square wave; outputs A and B are 50/50 duty cycle nominal; output Z (index output) is approximately the width of one cycle on outputs A or B Pulse symmetry(A): 180° ±30% Pulse interval jitter(B): 30% max Quadrature(C): 90°±30% max Phase jitter (D): 30% max Index pulse (E)
Wheels & Couplings Information
Here is a listing of the suggested Measuring Wheels & Shaft Couplings. For more information, please click on the part number.