External Hand Off Auto Example - GE AF-650 GP Operating Instructions Manual

Installation

3.5.5 External Hand Off Auto Example

Hand Off Auto (HOA), without the use of the Drive keypad
To have a HOA system with an external 0-10V potenti-
ometer for the hand reference and a 4-20mA signal for the
3 3
auto reference, 2 set-ups should be used. In this example
we use set-up 1 for the hand mode and set-up 2 for the
auto mode. We use analog input 53 for the hand reference
(0-10V potentiometer) and analog input 54 for the auto
reference (4-20mA) and digital input 27 for the set-up
selector. Please ensure that the analog inputs have the
correct dip settings (A-53 [U] and A-54 [I]).
In the upper right corner of the keypad you can see 2
numbers – like 1(1). The number outside the parenthesis is
the active set-up and the number inside the parenthesis is
the set-up which will be edited. Default will always be 1(1).
Make sure you edit set-up 1.
1. Make all the parameter changes you need, that
will be common for auto and hand mode, like
motor parameters etc.
2. Set par. K-10 Active set-up to [9] Multi Set-up. This
parameter change is needed to be able to
change set-up from an external source, like a
digital input.
3. Set par. K-11 Edit Set-up to [9] Active Set-up. This
is recommended because then the active setup
will always be the set-up that is edited. If you
prefer you can also ignore this and manually
Illustration 3.25 GE 30mm HOA Cat# (1) 104PSG34B & (3) CR104PXC1
48
AF-650 GP High Power Operating Instructions
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10.
If you want different settings in hand and auto mode, like
different accel/decel ramps, speed limits etc. you can now
programme them. You just have to make sure you edit the
correct set-up. Set-up 1 is Hand mode and set-up 2 is Auto
mode.
External Hand-Off-Auto Selector Switch Wiring
control what set-up you want to edit through
par. K-11.
Set par. E-03 Terminal 27 Digital Input to [23] Set-
up select bit 0. When terminal 27 is OFF, set-up 1
(hand) is active, when it is ON, set-up 2 (auto) is
active.
Set par. F-01 Frequency Setting 1 to Analog input
53 (hand mode).
Ensure par. C-30 Frequency Command 2 and par.
C-34 Frequency Command 3are both No Function.
This is good practice to make sure no other
references are added.
Copy set-up 1 to set-up 2. Set par. K-51 Set up
Copy to [2] Copy to set-up 2. Now setup 1 and 2
are identical.
If you need to be able to change between hand
and auto mode while the motor is running you
will have to link the 2 set-ups together. Set par.
K-12 This Set-up Linked to to [2] set-up 2.
Change to set-up 2 by setting input 27 ON (if par.
K-11 is [9]) or by setting par. K-11 Edit Set-up to
set-up 2.
Set par. F-01 Frequency Setting 1 to Analog input
54 (auto mode).