Bulletin No. ZBG/ZHG-D
Drawing No. LP0739
Released 02/15
Tel +1 (717) 767-6511
Fax +1 (717) 764-0839
www.redlion.net
MODELS ZBG AND ZBH STANDARD DUTY ENCODER (Replaces MODEL RPGB)
MODEL ZHG HEAVY DUTY ENCODER (Replaces MODEL RPGH)
CURRENT SINK OUTPUTS
HIGH PULSE PER REVOLUTION (PPR) RATES
Up to 1200 PPR for fine, high-resolution counting or precision speed
measurement from slow shaft speeds.
QUADRATURE OUTPUT
For position measurement, bi-directional counting and in systems with
backlash counting requirements.
AVAILABLE WITH MS AND M12 CONNECTORS
MODEL ZHG - HEAVY-DUTY SEALED HOUSING
(Replaces Model RPGH)
MODEL ZBG and ZBH - FOR GENERAL
INDUSTRIAL SERVICE (Replaces Model RPGB)
The units contain an L.E.D. light source and a photo sensor that scans a shaft-
mounted, slotted disc. An internal pulse-shaping amplifier circuit delivers a
rectangular pulse signal from the current sinking output in response to the passing
slots as it rotates. They can be direct-coupled to a machine shaft by means of a
flexible-bellows, spring, or rubber sleeve type coupling that allows for axial and
radial misalignment. They can also be coupled with light instrument timing-belts.
Timing-belt drives also allow convenient gear-up or gear-down speed ratio
changes that can be useful for obtaining non-standard PPR rates.
These heavy duty units feature a heavy cast aluminum housing with 1/4"
thick aluminum cover plates and 0-ring seals. Heavy duty bearings are double-
sealed and allow radial shaft loading of 40 lbs (18 Kg).
A 1/2" (12.7 mm) NPT Conduit entry permits signal wiring to be run via flex-
conduit to an internal terminal block. Electrical characteristics are identical to
those for the Model ZBG. Terminal board markings correspond to the Pin-Out
identification of the ZBG.
DIMENSIONS In Inches (mm)
DIMENSIONS In inches (mm)
MS TYPE CONNECTOR,
6-PIN, #14S-6P-6 or M12 CONNECTOR, 8-PIN
BOTTOM VIEW
FRONT VIEW
6-32 THD .25" DEEP ON
2 (50.8) DIA. BOLT CIRCLE
(BOTH SHAFT ENDS & BOTTOM)
3
.095
(2.41)
(76.2)
2.25
(57.15)
.974 MAX.
(24.7)
.375 (9.5) DIA. SHAFT
.750 (19) LONG, BOTH ENDS
6 (152.4)
3 (76.2)
2.25 (57.15)
2.25 (57.15)
1/4" - 20 THD, 1/2" DEEP ON 2" (50.8) DIA.
BOLT CIRCLE 4 HOLE PATTERN,
FRONT AND BOTTOM
TOP VIEW
1/2" NPT
CONDUIT
THD
.375 DIA. SHAFT
.75 LONG, 303
STAINLESS STEEL
REMOVE THIS SIDE
COVER TO EXPOSE
TERMINAL STRIP
3 (76.2)
RIGHT SIDE VIEW (COVER REMOVED)
6
5
4
3
2
1
N.C.
N.C.
DATA
DATA
COMMON
B
A
(QUAD)
ONLY
+5 to +28VDC
1