Emerson EVH Series, Installation Manual

Page: 32 / 52

32
Factory-Set Control Terminal Functions
I/O Connection
External Wiring Pin Signal Name Signal Default Setting Description
1 +10V Ref. Output Voltage - 10VDC Supply Source
2 AI1+
a
Analog Input 1 0-10V Voltage Speed Reference (Programmable to 4-20mA)
3 AI1- Analog Input 1 Ground - Analog Input 1 Common (Ground)
4 AI2+
a
Analog Input 2 4-20mA Current Speed Reference (Programmable to 0-10V)
5 AI2- Analog Input 2 Ground - Analog Input 2 Common (Ground)
6 GND I/O Signal Ground - I/O Ground for Reference and Control
7 DIN5 Digital Input 5 Preset Speed B0 Sets frequency output to Preset Speed 1
8 DIN6 Digital Input 6 Fire Mode Enables drive into Fire Mode
9 DIN7 Digital Input 7\TI+ Bypass Start Enables drive into Bypass mode waiting for drive start
10 DIN8 Digital Input 8\TI- Force Auto Input forces drive into Auto Control place
11 CMB DI5 to DI8 Common Grounded Allows source input
12 GND I/O Signal Ground - I/O Ground for Reference and Control
13 24Vo +24VDC Output - Control voltage output (100mA Max)
14 DO1 Digital Output 1 Ready Shows the drive is ready to run
15 24Vo +24VDC Output - Control voltage output (100mA Max)
16 GND I/O Signal Ground - I/O Ground for Reference and Control
17 AO1+ Analog Output 1 Output Frequency Shows Output frequency to motor 0 - 60Hz (4-20mA)
18 AO2+ Analog Output 2 Motor Current Shows Motor current of motor 0-FLA (4-20mA)
19 24Vi +24VDC Input - External control voltage input
20 DIN1 Digital Input 1 Run Forward Input starts drive in forward direction (start enable)
21 DIN2 Digital Input 2 Run Reverse Input starts drive in reverse direction(start enable)
22 DIN3 Digital Input 3 External Fault Input causes drive to fault
23 DIN4 Digital Input 4 Fault Reset Input resets active faults
24 CMA DI1 to DI4 Common Grounded Allows source input
25 A RS-485 Signal A/+ - Fieldbus Communication (Modbus, BACnet)
26 B RS-485 Signal B/- - Fieldbus Communication (Modbus, BACnet)
27 R3NO Relay 3 Normally Open Fault Relay output 3 shows VFD is Faulted
28 R1NC Relay 1 Normally Closed Bypass Run Relay output 1 shows VFD is in a bypass run state
29 R1CM Relay 1 Common
30 R1NO Relay 1 Normally Open
31 R3CM Relay 3 Common Fault Relay output 3 shows VFD is Faulted
32 R2NC Relay 2 Normally Closed Run Relay output 2 shows VFD is in a drive run state
33 R2CM Relay 2 Common
34 R2NO Relay 2 Normally Open
Notes
- The above wiring demonstrates a SINK configuration. It is important that CMA and CMB are wired to
ground (as shown by dashed line). If a SOURCE configuration is desired, wire 24 V to CMA and CMB
and close the inputs to ground. When using the +10 V for AI1, it is important to wire AI1—to ground (as
shown by dashed line). If using +10 V for AI1 or AI2, terminals 3, 5, and 6 need to be jumpered
together.
- AI1+ and AI2+ block that it can support 10K potentiometer.
i
Re
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