Cut Sheet

“W”
CONNECTOR OPTIONS
REF
SIGNAL
BLACK
RED
GREEN
VIOLET
BLUE
BROWN
ORANGE
YELLOW
WHITE
“A”, “B”, “C”, “D”
F
D
A
H
B
I
C
J
G
COM
+V
ØA
ØA
–
ØB
ØB
–
Z
Z
–
DIFFERENTIAL TWO PHASE WIRING
LINE DRIVER (Output Option 1)
+5 TO +28 VOLTS
= MARKER
CASE GND*
(SEE LINE DRIVER
SPECIFICATIONS)
“W”
REF
SIGNAL
“A”, “B”, “C”, “D”
RED
GREEN
BLACK
WHITE
D
A
F
G
+V
SIG
COM
CASE GND*
“W”
REF
SIGNAL
“A”, “B”, “C”, “D”
RED
GREEN
BLUE
BLACK
WHITE
D
A
B
F
G
+V
ØA
ØB
COM
CASE GND*
SINGLE ENDED TWO PHASE WIRING
SINGLE ENDED SINGLE PHASE WIRING
SIGNAL CODING TABLE
CONNECTOR OPTIONS
SIGNAL CODING TABLE
CONNECTOR OPTIONS
SIGNAL CODING TABLE
WIRING INSTRUCTIONS
B
e sure to remove power before wiring the HS25A Encoder.
Be sure to ground the cable shield(s): It can be connected to case
g
round at the encoder, or grounded at the receiving device, but
should not be grounded on both ends.
If necessary, case ground can also be provided through
aseparate wire. Be certain not to ground the case ground wire if
t
he encoder is already grounded by mechanical mounting. (The
standard antirotation arm kits provide insulating washers)
The HS25A encoder can be wired for single phase or two-phase
operation, either with or without complements, with or without
m
arkers. See connector options and wiring diagrams.
CAUTION
When wiring for differential applications (A,A
–
,B,B
–
,Z,Z
–
), A and
A
–
should be wired using one twisted, shielded pair; B and B
–
should be in a second pair, etc. Failure to use complementary
pairs (say, using A and B in a twisted pair) will reduce noise
immunity significantly.
For encoder output that correctly reflects the direction of rotation,
proper phasing of the two output channels is important. Phase A
channel leads phase B channel for clockwise shaft rotation as
viewed from the back (non-mounting side) of the encoder for
standard phasing options (“A”, “C”, & “W”). Follow instructions
under corrective installation as needed to reverse the direction of
output or purchase HS35M with reverse (Dynapar HS35) phasing
(
options “B”, “D”).
C
ORRECTIVE ACTION FOR PHASE REVERSAL
If Encoder Direction is Reversed:
1) Remove power.
2) Exchange wires on cable, either at encoder cable end, or at
speed controller end (but NOT both):
a.) Single Ended 2 Phase Wiring (see wiring diagram)
E
xchange A and B at the user end of the wires.
b.) Differential 2 Phase Wiring (see wiring diagram)
Exchange either A with A
–
in the phase A pair OR B with B
–
in
the phase B pair but NOT both.
3) Apply power.
4) Verify encoder feedback is correct, using hand rotation of
shaft, or jog mode of the speed controller.
Interconnecting cables specified in the wire selection chart are
based on typical applications. Refer to the “Wiring Diagrams”
below for suggested cable types. General electrical requirements
are: stranded copper, 22 thru 16 gauge, each wire pair
individually shielded with braid or foil with drain wire, 0.05 uF
maximum total mutual or direct capacitance, outer sheath
insulator, 1,000 ft. max.
Open Collector Line Driver Output Option 2 requires pull up
resistors from each active output to a +V reference.
For Connector Option “W”, unused connections must be in-
sulated to prevent accidental contact.
* NOTE: Connecting Case Ground is optional and is not
recommended for use in 0.75" shaft applications
(no shaft insulating insert).
WIRING DIAGRAMS
BELDEN
2 PAIR
3 PAIR
4 PAIR
3 CONDUCTOR
TYPICAL WIRE SELECTION CHART
for 18 AWG, multiple pair, individually shielded
9368
9773 or 9369
9388
9365
5620B1802
6445
6444
5640B1801
ALPHA