Detailed Description of the Parameters
.
86 | CTW900
The internal value AIx’ is the result of the following equation:
Example: AIx = 5V, Offset = –70 % and Gain = 1.000:
A value of AIx’ = –2 V means that the motor will spin in the reverse direction with a reference in module equal to
2V, in case the analog input function is configured for “Speed Reference”. For the Torque Current Limitation, the
values are considered only in module, and for the function “Current Auxiliary Reference”, negative values are
considered as 0.0 %.
In the case of the filter parameters (P0235, P0240, P0245 and P0250), the value set corresponds to the RC
used to filter the signal read at the input.
P0233 – Input AI1 Signal
P0243 – Input AI3 Signal
Adjustable Range:
0 = 0 to 10 V/ 20 mA
Factory Setting:
0
1 = 4 to 20 mA
2 = 10 V/ 20 mA to 0
3 = 20 to 4 mA
P0238 – Input AI2 Signal
P0248 – Input AI4 Signal
Adjustable Range:
0 = 0 to 10 V/ 20 mA
Factory Setting:
0
1 = 4 to 20 mA
2 = 10 V/ 20 mA to 0
3 = 20 to 4 mA
4 = –10 V to +10 V
Properties:
CFG1
Groups of
01 PARAMETER GROUPS or 07 I/O CONFIGURATION
Access via HMI:
32 Analog Inputs
........
32 Analog Inputs
........
Description:
Those parameters configure the signal type (if current or voltage) that will be read in each analog input, as well
as its variation range. See the details regarding this configuration in Table 7.7 and Table 7.8.
Table 7.7
– DIP Switches related to the analog inputs
Parameter
Input
Switch
Location
P0233
AI1
S1.4
Control Board CC900
P0238
AI2
S1.3
Control Board CC900
P0243
AI3
S3.1
IOB
P0248
AI4
S3.1
IOA
Table 7.8
– Configuration of the analog input signals
P0233, P0243
P0238, P0248
Input Signal
Switch Position
0
0
(0 to 10) V / (0 to 20) mA
Off / On
1
1
(4 to 20) mA
On
2
2
(10 to 0) V / (20 to 0) mA
Off / On
3
3
(20 to 4) mA
On
-
4
(-10 to +10) V
Off
When current signals are used in the inputs, the switch corresponding to the desired output must be set in the
“ON” position.