Application macros 107
Motor potentiometer macro
This macro provides a cost-effective interface for PLCs that vary the speed (output
frequency) of the motor using only digital signals. To enable the macro, set the value
of parameter
).
For the parameter default values, see section
Default values with different macros
on
page
. If you use other than the default connections presented below, see section
Default I/O connections
X1A
1
SCR
Signal cable shield (screen)
2
AI1
Not in use by default. 0…10 V
3
GND
Analog input circuit common
4
+10V
Reference voltage: +10 V DC, max. 10 mA
5
AI2
Not in use by default. 0…10 V
6
GND
Analog input circuit common
7
AO
Output frequency value
: 0…20 mA
8
GND
Analog output circuit common
9
+24V
Auxiliary voltage output: +24 V DC, max. 200 mA
10 GND
Auxiliary voltage output common
11 DCOM
Digital input common
12 DI1
Stop (0) / Start (1)
13 DI2
Forward (0) / Reverse (1)
14 DI3
Output frequency reference up
1)
15 DI4
Output frequency reference down
1)
16 DI5
Constant speed 1:
parameter
X1B
17 ROCOM
Relay output 1
No fault [Fault (-1)]
18 RONC
19 RONO
20 DOSRC
Digital output, max. 100 mA
No fault [Fault (-1)]
21 DOOUT
22 DOGND
max. 500 ohm
2)
1)
If DI3 and DI4 are both active or inactive, the
output frequency reference is unchanged.
The existing output frequency reference is
stored during stop and power down.
2)
360 degree grounding under a clamp.
Tightening torque: 0.4 N·m (3.5 lbf·in).
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