Characteristics of the Variable Speed Controller Inputs
(Original Document)
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General
The auxiliary inputs of the variable speed controller are supplied by the same supply as the auxiliary input/outputs. This is not monitored by the module, but any loss in voltage less than 5 V on a CTRL_VAR input can signal to the processor a fault with the variable speed controller.
Illustration:
Table of Characteristics
Table of electrical characteristics:
Electrical characteristics
Symbol
Value
Units
Nominal voltage
One
24
V
Voltage limits (1)
(ripple included)
U1
Utime (*)
19 to 30
34
V
V
Nominal current
In
8
mA
Input impedance (at Un)
Re
3
kΩ
Voltage for "OK" state
Uon
≥11
V
Current at Uon (11 V)
Ion
> 3,5
mA
Voltage for "Error" state
Uoff
< 5
V
Current at "Error" state
Ioff
< 1,5
mA
Immunity OK --> Error
toff
1 to 4
ms
Immunity at Error --> OK
ton
1 to 4
ms
Dielectric rigidity with the ground connection
1500 Veff 50/60 Hz per min
IEC 1131 compatibility with sensors
Type 1
Logic type
Positive (sink)
(*) Utime: maximum permitted voltage for 1 hour in every 24 hour period.