1-58
ACH550-UH User’s Manual
Application macros
Internal Timer macro
This macro configures for applications where a built-in timer starts and stops the
motor. When the variable speed pump reaches a maximum speed limit, auxiliary
pumps start as needed. When using direct speed reference in AUTO mode or
process PID, see
on page
Momentarily activating digital input 3 (DI3) provides a boost function which operates
the motor. See group 36, Timer Functions, for more information on setting up timers.
Parameters Changed Relative to HVAC Default
Parameter
Value
Parameter
Value
9902
APPLIC
MACRO
8 (
INT
TIMER
)
1601
RUN
ENABLE
2 (
DI
2)
1001
EXT
1
COMMANDS
11 (
TIMER
1)
1609
START
ENABLE
2
5 (
DI
5)
1002
EXT
2
COMMANDS
11 (
TIMER
1)
3601
TIMERS
ENABLE
1 (
DI
1)
1201
CONST
SPEED
SEL
0 (
NOT
SEL
)
3622
BOOST
SEL
3 (
DI
3)
1401
RELAY
OUTPUT
1
7 (
STARTED
)
3626
TIMER
1
SRC
31 (
P
1+2+3+4+
B
)
1
SCR
2
AI1
3
AGND
4
10V
5
AI2
6
AGND
7
AO1
8
AO2
9
AGND
10 24V
11 GND
12 DCOM
13 DI1
14 DI2
15 DI3
16 DI4
17 DI5
18 DI6
19 RO1C
20 RO1A
21 RO1B
22 RO2C
23 RO2A
24 RO2B
25 RO3C
26 RO3A
27 RO3B
X1
+
mA
mA
External reference
0(2)…10 V or 0(4)…20 mA
Reference voltage 10 VDC
Output frequency:
0(4)…20 mA
Timer enable:
Activate to start/stop drive from timer
Run permissive:
Deactivate to stop drive (P 1601)
Timer override:
Activate to start drive
Safety interlock 1:
Deactivate to stop drive (P 1608)
Safety interlock 2:
Deactivate to stop drive (P 1609)
Relay output 1 (P 1401)
Default operation:
Started
=>19 connected to 21
Relay output 2 (P 1402)
Default operation:
Running
=>22 connected to 24
Relay output 3 (P 1403)
Default operation:
Fault (-1)
=>25 connected to 27
Output current:
0(4)…20 mA
Not configured
Analog input circuit common
PID feedback:
0(2)…10 V or 0(4)…20 mA
Analog output circuit common
Auxiliary voltage 24 VDC
Auxiliary voltage output common
Digital input common for all
Signal cable shield (screen)
Analog input circuit common
(Fault => 25 connected to 26)
+
J1
AI1: 0(4)
…
20 mA
AI2: 0(4)
…
20 mA
ON
Jumper Settings
ON
1
2
ON
Summary of Contents for ACH550-UH HVAC
Page 2: ......
Page 8: ...1 8 ACH550 UH User s Manual Table of contents ...
Page 32: ...1 32 ACH550 UH User s Manual Installation ...
Page 66: ...1 66 ACH550 UH User s Manual Application macros ...
Page 186: ...1 186 ACH550 UH User s Manual Parameters ...
Page 333: ...ACH550 UH User s Manual 1 333 Technical data ...