Advantages - GE AF-600 FP Design And Installation Manual

Application Set-up Examples
Hand Off Auto (HOA), without the use of the drive keypad
To have a HOA system with an external 0–10 V potenti-
ometer for the hand reference and a 4–20 mA signal for
the auto reference, 2 set-ups should be used. In this
example, set-up 1 is used for the hand mode and set-up 2
for the auto mode. Analog input 53 is used for the hand
reference (0–10 V potentiometer) and analog input 54 for
the auto reference (4–20 mA) 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, two numbers are
shown, e.g., 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 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 K-11 Edit Set-up to [9] Active Set-up. This is
recommended because then the active set-up will
always be the set-up that is edited. If you prefer,
you can also ignore this and manually control
what set-up you want to edit through parameter
K-11.
4. Set 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.
5. Set F-01 Frequency Setting 1 to Analog input 53
(hand mode).
6. Copy set-up 1 to set-up 2. Set K-51 Set up Copy to
[2] Copy to set-up 2. Now set-up 1 and 2 are
identical.
7. 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 K-12
This Set-up Linked to to [2] set-up 2.
8. Change to set-up 2 by setting input 27 ON (if
parameter K-11 is [9]) or by setting K-11 Edit Set-
up to set-up 2.
9. Set F-01 Frequency Setting 1 to Analog input 54
(auto mode). If you want different settings in
hand and auto mode, like different accel/decel
ramps, speed limits etc., you can now program
AF-600 FP Design and Installation Guide
Table 6.10 HOA

6.3 Advantages

6.3.1 Why use an adjustable frequency
drive for controlling fans and pumps?
An adjustable frequency drive takes advantage of the fact
that centrifugal fans and pumps follow the laws of propor-
tionality for such fans and pumps. For further information,
see the text and figure The Laws of Proportionality.
6.3.2 The Clear Advantage - Energy Savings
The very clear advantage of using an adjustable frequency
drive for controlling the speed of fans or pumps lies in the
electricity savings.
Compared to alternative control systems and technologies,
an adjustable frequency drive is the optimum energy
control system for controlling fan and pump systems.
DET-768A
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.
Function
E-01 Terminal 18
Digital Input
E-03 Terminal 27
Digital Input
* = Default Value
Notes/comments:
GE 30mm HOA Cat# (1)
104PSG34B & (3) CR104PXC1
Parameters
Setting
[8] Start*
[23[ Set-up
select bit 0
6
6-5
6