Twin Pot With Encoder And Toggle Switches. Steered Wheel Without Mechanical Limitation: One Shot Installation Procedure - Zapi EPS-AC0 SWs&ENC User Manual

Step16 Procedure is finished. Don't forget to turn the special adjustment DEBUG
Step17 Carry out the complete set-up procedure (see 10.1).
9.3 Twin Pot with Encoder and Toggle switches. Steered wheel without
mechanical limitation: one shot installation procedure
This procedure is relative to the connecting drawings Figure 5-2. It is valid also for
application with electrically limited angle (as for the present case) provided that, the
steered wheel may rotate for a full revolution without mechanical limitations (i.e.
without end strokes). It describes the step by step installation procedure to get the
prototype working in manual mode: to raise the AUTC function it is necessary to
make the complete set-up procedure (see topic 10).
For every truck released on the field, the correct installation set-up is already known
(as it was determined from the test on the prototype) and so no installation
procedure is required except for the quick set-up (see the quick set-up 10.2).
Carry out the procedure in the following order.
Step1 Connect the AC motor phases in such a way the phase references U, V, W
Step2 In the SET MODEL menu set the SYSTEM CONFIG setting to LEVEL 1 to
Step4 Set the FEEDBACK DEVICE to OPTION #4 to specify your feedback
Step5 Set option ENCODER CONTROL to OFF.
Step6 Set special adjustment DEBUG OUTPUT to level 11 and recycle the key.
Step7 Connect the encoder. The encoder supply is between CNB#4 (5 Vdc in the
Step8 Recycle the key and try to steer. If an alarm BAD ENCODER SIGN occurs,
Step9 Perform the procedure to acquire the motor resistance (see 12.2).
Step10 If the motor runs well without glitches, it is possible to stays with ENCODER
Step11 Verify the steered wheel rotates in the correct direction according to the
To get the system properly working it is necessary to set the encoder counting for a
whole steered wheel revolution together with the specification of the toggle switches
arrangement (one or two toggle switches and their succession inside a complete
steered wheel revolution). These setting are SET ENC AT 360 and AUX FUNCTION
11 respectively. When no mechanical limitation exists on the steered wheel, the
AEMZP0EA - EPS-AC0 SWs&ENC - User Manual
OUTPUT to level 15 if never done before.
on the steering motor correspond to the terminals references (U, V, W) on
the eps-ac0.
steer in closed loop with a twin pot in manual mode. Turn off and on the key
in order the setting is acquired.
solution is an encoder in the motor shaft together with one or two toggle
switches. Switch off the key after the change.
(With this operation, some diagnosis are inhibited so inconsistent actions of
the steering system are possible. Be prudent).
24/36V version; 13V in the 36/48V version) and CNA#11 (GND): the two
channels are CNB#8 (CHA) and CNB#7 (CHB).
swap CHA (CNB#8) with CHB (CNB#7). Then recycle the key and verify the
reading ENC SPEED in the tester menu is consistent with the reading
FREQUENCY in the tester menu. Consistent means that ENC SPEED and
FREQUENCY must have the same sign and a close value. If ENC SPEED
is not close to FREQUENCY, the encoder resolution is wrong and it will be
not possible to work with ENCODER CONTROL to ON (a different SW is
needed in this case).
CONTROL to OFF; otherwise, turn ENCODER CONTROL to ON.
hand wheel. If it isn't, swap CPOC1 (CNA#9) with CPOC2 (CNA#8).
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