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AYK550 User's Manual
Internal Timer
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 "General Considerations" on page 30.
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.
mA
9902
1001
1002
1201
1401
1601
X1
Signal cable shield (screen)
1
SCR
External reference 0(2)...10 V or 0(4)...20 mA
2
AI1
+
Analog input circuit common
3
AGND
Reference voltage 10 VDC
4
10V
5
AI2
PID feedback: 0(2)...10 V or 0(4)...20 mA
+
6
AGND
Analog input circuit common
7
AO1
Output frequency: 0(4)...20 mA
mA
8
AO2
Output current: 0(4)...20 mA
9
AGND
Analog output circuit common
Auxiliary voltage output +24 VDC
10 24V
Common for DI return signals.
11 GND
Digital input common for all
12 DCOM1
Timer enable: Activate to start/stop drive from timer
13 DI1
Run permissive: Deactivate to stop drive (P 1601)
14 DI2
Timer override: Activate to start drive
15 DI3
Safety interlock 1: Deactivate to stop drive (P 1608)
16 DI4
Safety interlock 2: Deactivate to stop drive (P 1609)
17 DI5
Not configured
18 DI6
19 RO1C
20 RO1A
21 RO1B
22 RO2C
23 RO2A
24 RO2B
25 RO3C
26 RO3A
27 RO3B
Parameters Changed Relative to HVAC Default
Parameter
8 (
APPLIC MACRO
INT TIMER
1
11 (
EXT
COMMANDS
2
11 (
EXT
COMMANDS
0 (
CONST SPEED SEL
NOT SEL
1
7 (
RELAY OUTPUT
STARTED
2 (
RUN ENABLE
DI
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
(Fault => 25 connected to 26)
Value
)
1609
1)
3207
TIMER
1)
3601
TIMER
)
3622
)
3626
2)
J1
Jumper Settings
AI1: 0(2)
AI2: 0(4)
Parameter
2
5 (
5)
START ENABLE
DI
3
0103 (
SUPERV
PARAM
1 (
1)
TIMERS ENABLE
DI
3 (
3)
BOOST SEL
DI
1
23 (
TIMER
SRC
B
39
...
10 V
...
20 mA
Value
)
OUTPUT FREQ
+
3+
2+
1)
P
P
P
Start-Up
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