Step 5—Standard Parameter List
12
Variable Speed Drives Series III
LIT-12012996—April 2018
www.johnsoncontrols.com
Control I/O Configuration
●
Run 240 Vac and 24 Vdc control wiring in separate conduit
●
Communication wire to be shielded
Table 7. Analog Signals/Galaxy I/O Interface
Notes
1
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—ground (as shown by dashed line). If using +10 V for AI1 or AI2, terminals 3, 5, and 6 need to be jumpered together.
2
AI1+ and AI2+ support 10K potentiometer.
External
Wiring
1
Pin
Signal
Name
Signal
Default
Setting
Description
1
+10V
Ref. Output Voltage
—
10 Vdc Supply Source
2
AI1+
2
Analog Input 1
0–10V
Voltage Speed Reference (Programmable to 4 mA to 20 mA)
3
AI1–
Analog Input 1 Ground
—
Analog Input 1 Common (Ground)
4
AI2+
2
Analog Input 2
4 mA to 20 mA
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
Bypass Start (TI–)
Enables drive into Bypass mode waiting for drive start
10
DIN8
Digital Input 8
Force Auto (TI+)
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
24V
+24 Vdc Output
—
Control voltage output (100 mA max.)
14
DO1
Digital Output 1
Ready
Shows the drive is ready to run
15
24Vo
+24 Vdc Output
—
Control voltage output (100 mA 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 0–60 Hz (4 mA to 20 mA)
18
AO2+
Analog Output 2
Motor Current
Shows Motor current of motor 0–FLA (4 mA to 20 mA)
19
24Vi
+24 Vdc 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, SA Bus)
26
B/–
RS-485 Signal B
—
Fieldbus Communication (Modbus, BACnet, SA Bus)
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
Re
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