Product Manual

CU331SP variable frequency drive
SQ, SQE, CU 331, and SP
10
45
Setting the analog input 54
The contact A54 is positioned behind the control panel
and is used for setting the signal type of the analog
input.
The factory setting of the inputs is voltage signal "U".
This setting must be changed to "I" prior to starting the
CU331SP. Be sure the power supply is switched off.
Remove the control panel to set the contact. See fig.
38.
Fig. 38 Setting contact A54 to current signal "I"
Terminal key
The RS-485 screen must be connected to frame.
Access to signal terminals
All signal terminals are behind the terminal cover of the
CU331SP front. Remove the terminal cover as shown
in fig. 39.
Fig. 39 Access to signal terminals
Fig. 40 Signal terminals
Fitting the conductor
1. Remove the insulation at a length of 0.35 to 0.40
inches (9 to 10 mm).
2. Insert a screwdriver with a tip of maximum 0.015 x
0.1 in (0.4 x 2.5 mm) into the square hole.
3. Insert the conductor into the corresponding round
hole. Remove the screwdriver. The conductor is
now fixed in the terminal.
Fig. 41 Fitting the conductor into the signal terminal
TM05 5803 3912
Terminal Type Function
12 +24 V out Supply to sensor
18 DI 1 Digital input, start/stop
20 GND Common frame for digital inputs
55 GND Common frame for analog inputs
54 AI 2 Sensor input, sensor 1, 0/4-20 mA
61 RS-485 GND Y GENIbus, frame
68 RS-485 A GENIbus, signal A (+)
69 RS-485 B GENIbus, signal B (-)
UI
A54
TM03 9004 2807
TM03 9025 2807TM03 9026 2807