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Chapter 6 - Pump control application
POWERXL DM1 SERIES VARIABLE FREQUENCY DRIVES
MN040049EN
—September 2021 www.eaton.com
Table 36. Pump application default I/O connection (continued).
DM1 PRO
External wiring Terminal Short name Name
Default setting
Description
Res
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
1
DI1
Digital input 1
Run forward
Starts the motor in the forward direction.
2
DI2
Digital input 2
Run reverse
Start the motor in the reverse direction.
3
DI3
Digital input 3
External fault
Triggers a fault in the drive.
4
DI4
Digital input 4
Fault reset
Resets active faults in the drive.
5
CMA
DI1 to DI4 common
Grounded
Allows for sourced input.
6
A
RS-485 signal A
—
Fieldbus communication (Modbus RTU, BACNet).
7
B
RS-485 signal B
—
Fieldbus communication (Modbus RTU, BACNet).
8
AI1+
Analog input 1
0 - 10 V
Voltage speed reference (programmable to 4 mA to 20 mA).
9
AI1-
Analog input 1 ground
—
Analog input 1 common (ground).
10
GND
I/O signal ground
—
I/O ground for reference and control.
11
AO1+
Analog output 1
Output frequency
Shows output frequency to motor 0 - 60 Hz (4 mA to 20 mA).
12
GND
I/O signal ground
—
I/O ground for reference and control.
13
10 V
10 Vdc reference output
10.3 Vdc +/- 3%
10 Vdc reference voltage.
14
24 V
24 Vdc control output
24 Vdc In/Out
Control voltage input/output (100 mA max.).
15
STO_com
Safe torque common
—
Safe torque Off common.
16
STO2
Safe torque Off 2
—
Safe torque Off 2 input.
17
STO1
Safe torque Off 1
—
Safe torque Off 1 input.
18
R1NO
Relay 1 normally open
Run
Changes state when the drive is in the run state.
19
R1CM
Relay 1 common
20
R1NC
Relay 1 normally closed
21
R2NO
Relay 2 normally open
Fault
Changes state when the drive is in the fault state.
22
R2CM
Relay 2 common
Notes:
The above wiring demonstrates a SINK configuration. The SW2 position 1 is set to ON. If a SOURCE configuration is desired, wire 24 V to CMA and close the inputs to
ground. When using the +10 V for AI1, SW2 position 2 set to ON.
AI1+ support 10 K potentiometer.