ACH580 Installation, Operation and Maintenance Manual
39
ACH580-01 Installation
Default control connections for the HVAC default
Terminal sizes:
1. R1…R5: 24…14 AWG (0.2…2.5 mm
2
): Ter24V, DGND, DCOM, B+, A-, DGND, Ext. 24V
2. 26…16 AWG (0.14…1.5 mm
2
): Terminals DI, AI, AO, AGND, RO, STO
3. R6…R9: 26...14 AWG (0.14…2.5 mm
2
) (all terminals)
4. Tightening torques: 0.4 lb-ft (0.5…0.6 N•m)
HVAC default direct I/O control
Input Signals
Output signals
•
Analog frequency/speed reference (AI1)
•
Analog output AO1: Output frequency
•
Start/stop selection (DI1)
•
Analog output AO2: Motor current
•
Constant speed/frequency selection (DI3)
•
Relay output 1: Damper control
•
Start interlock 1 (DI4)
•
Relay output 2: Running
•
Relay output 3: Fault (-1)
Not
es:
1)
Ground the outer shield of the cable 360 degrees under the grounding clamp on the grounding shelf for
the control cables.
2)
Connected with jumpers at the factory.
3)
Only frames R6…R11 have terminals 40 and 41 for external 24 V AC/DC input.
X1
Reference voltage and analog inputs and outputs
1
SCR
Signal cable shield (screen)
2
AI1
Output frequency/speed reference
: 0 to 10 V
3
AGND
Analog input circuit common
4
+10V
Reference voltage 10 V DC
5
AI2
Actual feedback:
0 to 20 mA
6
AGND
Analog input circuit common
7
AO1
Output frequency:
0 to 10 V
8
AO2
Motor current:
0 to 20 mA
9
AGND
Analog output circuit common
X2 & X3
Aux. voltage output and programmable digital inputs
10
+24V
Aux. voltage 24 V DC, max. 250 mA
11
DGND
Aux. voltage output common
12
DCOM
Digital input common for all
13
DI1
Stop (0)/Start (1)
14
DI2
Not configured
15
DI3
Constant frequency/speed selection
16
DI4
Start interlock 1 (1 = allow start)
17
DI5
Not configured
18
DI6
Not configured
X6, X7, X8
Relay
outputs
19
RO1C
Damper control
250 V AC / 30 V DC
2 A
20
RO1A
21
RO1B
22
RO2C
Running
250 V AC / 30 V DC
2 A
23
RO2A
24
RO2B
25
RO3C
Fault (-1)
250 V AC / 30 V DC
2 A
26
RO3A
27
RO3B
X5
Embedded fieldbus
29
B+
Embedded fieldbus, EFB (EIA-485)
30
A-
31
DGND
S4
TERM
Termination switch
S5
BIAS
Bias resistors switch
X4
Safe torque off
34
OUT1
Safe torque off
35
OUT2
36
SGND
37
IN1
38
IN2
+10 V
+24 V
+
-
0...10 V DC speed
reference signal
Start/Stop signal
Safety
Run status
Fault status
Energize damper
19 connected to 21
Running
22 connected to 24
Fault condition
25 connected to 26