9000 SERIES - CONTACTLESS JOYSTICKS
PRODUCT DESCRIPTION
GENERAL DESCRIPTION
The 9000 Series is ideal for those applications that demand proportional control with the lowest possible profile below
the panel. Developed from the proven 7000 Series, the 9000 Series employs the same, highly proven, contactless,
inductive sensing and circuitry. The mechanics have been radically improved to reduce the below-panel depth to a world
class 35mm sub-panel or 31mm drop-through. This joystick offers self-centering, omni-directional functionality, and
utilises the exclusive ‘locking cam’ system to rigidly secure the highly repeatable mechanism around the precision ground
steel operating shaft. High precision air wound coils are mounted directly onto the SMT circuitry, delivering enviable accuracy
whilst further minimising the installed depth of the joystick.
CIRCUITRY
The 9000 Series joystick operates by passing a oscillating current through a drive coil, directly mounted at the lower
end of the operating lever, and immediately above the four sensing coils. When the shaft and drive coil moves away
from the centre, the signals detected in each opposing pair of coils increase nominally in proportion to deflection. The
phase of those signals determine the direction. Synchronous electronic switches followed by integrating amplifiers provide
DC signals directly equivalent to those of potentiometer joysticks, but with fixed output impedance and free of wiper noise
and track wear.
DUAL DECODE
Designed for use in the most safety-critical applications, the 9000 Series incorporates comprehensive internal
monitoring circuitry whereby output signals are continually compared with separately generated ‘mirror signals’. In
the unlikely event of an internal fault, the dual decode system will generate a separate fault signal, enabling the
controller to fail-to-safe. The dual decode system is a complete internal self-monitoring system, providing a far higher
standard of protection. An additional,‘away from centre’ signal is also available whenever required. Although the
monitoring of the joystick is fully internal, the inverse ‘mirror signals’ can be available as external outputs where the
monitor function is incorporated within the controller circuitry.
GUIDED FEEL
The 9000 Series may also be specified with guided feel. A joystick with guided feel moves more readily towards the poles
( N, S, E and W ) and whilst it can still move away from the poles, the force required to do so is greater. Unless specified
otherwise, joysticks are supplied as standard without guiding. This standard configuration allows the user to move the
joystick anywhere within the limiter with the same force and without any bias.
FUNCTIONAL OPTIONS
The 9000 Series can be configured in three different modes -
Orthoganol, standard signals
- Replicating that of a potentiometer
Deliberate signal mixing
- Ideal for those applications whereby the method of steering is by controlling two motors. For
example one motor uses X+Y signals and the other uses X-Y signals. This mixing is achieved by internally orientating the
signals at 45 degrees to normal. Typical applications may be twin propeller boats, tracked vehicles, or wheelchairs.
Deliberate signal interaction
- Enables reduction in one signal as the other increases. This option is particularly beneficial
where it is undesirable to maintain full forward speed while turning and vice versa.
Note: The company reserves the right to change specifications without notice.
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870045v8
9000 SERIES - CONTACTLESS JOYSTICKS
PRODUCT CONFIGURATION
STANDARD OPTIONS
The 9000 Series is available with a range of standard options, to specify your joystick, simply choose one option from
each column. An example is shown below.
9
S
A
20
R
C
6
2
00
SERIES
9000
(9)
SENSING
Mixed
(M)
Interacting
(Q)
Standard
(S)
DECODING
Single
Decode
(A)
Dual Decode
Dual Outputs
(M)
Dual Decode
Separate Fault &
Centre Detect
(W)
Dual Decode
Fault Detect
(X)
Dual Decode
Combined Fault &
Centre Detect
(Y)
Dual Decode
Centre Detect
(Z)
GAIN
20%
(+/- 10%)
(10)
40%
(+/- 20%)
(20)
66%
(+/- 33%)
(33)
80%
(+/- 40%)
(40)
100%
(+/- 50%)
(50)
LIMITER
Single Axis
(A)
Cross
(C)
Diamond
(D)
Round
(R)
Square
(S)
X Type
(X)
HANDLE
Round
(C)
Cylindrical
(D)
Conical
(E)
Conical
(G)
Push Button Tactile
(J)
Push Button Tactile
(M)
Push Button Soft Touch
(N)
Third Axis + Push Button
(P)
Skirted
(Q)
Third Axis
(R)
Third Axis - Knurled
(Y)
BEZEL
Not supplied
(0)
Circular
(4)
Square
(6)
GAITER
Gloss Finish
(2)
Standard
(5)
MODIFIER
None
(00)
Guided Feel
(20)
BEZEL OPTIONS
For drop in mounting, please specify bezel option 6. For sub-panel mounting, no bezel is necessary, unless the gaiter is
required to seal to the face of the panel in which case bezel option 4 should be specified.
SPRINGING
As standard 9000 Series are offered sprung to centre. The standard spring force requires 1.3N (nominally) to off-centre the
joystick. The 9000 Series may be specified with a lighter spring (1N), or a stronger spring (1.6N)
Note: Forces quoted are subject to exact joystick configuration and are provided as a guide only. Owing to the size and weight
of handle type P it is supplied as standard with a strong spring.
DUAL DECODE INTERFACE
For optimum performance of the centre detect and fault detect signals, Apem recommend the signals are “pulled high” via
an input resistor of typically 22k, on the controller circuitry.
CENTRE TAP REFERENCE
All 9000 Series output a centre tap reference as standard. This reference is set within the joystick at 50% of Vcc (+/-1%).
For optimum accuracy the wipers should be read relative to the centre tap.
NON STANDARD
Further non standard options including custom handles or special limiters are available. Please refer to Apem for further
details.
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870045v8
9000 SERIES - CONTACTLESS JOYSTICKS
PRODUCT SPECIFICATION
TECHNICAL SPECIFICATION
All parameters and dimensions shown maybe subject to specification, please refer to Apem for details.
Life Cycles
: >10 Million Operations
: +/-10% of Vcc to +/-50% of Vcc
Signal Swing
: +/-1%
Output at Centre
Signal Ripple
: <1% of Output
ESD Immunity
: >12kV - Correctly Installed
RFI Rejection
: >40v/m - Correctly Installed
Body Material
: Glass Reinforced ABS
: 5mm
Shaft Diameter
Gimbal Pivot
: Acetal and Hardened Steel
: 90 Grams
Weight
Temperature Range : -20°C to +55°C
Max Load to Shaft - Vertical : 75Kg (Momentary)
Supply Voltage
Output Signal Tolerance
Output Impedance
Supply Current
RFI Rejection
Preferred Load
Shaft Material
Other Materials
Gaiter
Above Panel Seal
Max Load to Shaft - Horizontal
Operating Lever Deflection
: 4.75V Min to 15V Max
: +/-10% of Output
: 1.8K +/-1%
: Typically 10mA
: >20V/m - Bare Joystick
: >10K
: Stainless Steel
: Brass, Acetal, Nylon
: Neoprene
: IP65
: 25Kg (Momentary)
: +/-18°
NEAR EQUIVALENT CIRCUIT
+Ve Supply
Z Axis Output
Y Axis Output
0V Supply
Centre Tap
Reference
X Axis Output
x2
Push Button
Dual Decode
CABLE SPECIFICATION
Cable information may be subject to specification, please refer to Apem for details.
14/0.12
Red
Blue
Green
Orange
Brown
- Fourteen strands of 0.12mm diameter tinned annealed copper wire PVC insulated to a nominal OD of 1mm.
: 0V
: +Vcc
Black
: X Axis Wiper
Yellow : Y Axis Wiper
: Centre Tap Reference
Purple : Z Axis Wiper
: Centre Detect, or Combined Fault & Centre Detect
White : Fault Detect
Grey
: Mirror of Y Axis
: Mirror of X Axis Wiper
7/0.127 - Seven strands of 0.127mm diameter tinned copper wire ETFE insulated, to a nominal OD of 0.7mm
Orange : Push Button
All 9000 Series are supplied with 150mm of twisted cable harness, with tinned ends.
Connectors may be fitted upon request.
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870045v8
Embedded System
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