York AYK 550, User Manual

Page: 39 / 283

AYK550 User’s Manual 35
Start-Up
Cooling Tower Fan
This macro configures for cooling tower fan applications where the fan speed is
controlled according to the signals received from a transducer. When using direct
speed reference in AUTO mode or process PID, see "General Considerations" on
page 30.
Parameters Changed Relative to HVAC Default
Parameter Value Parameter Value
9902
APPLIC MACRO
4 (
CLNGTWRFAN
) 3207
SUPERV
3
PARAM
0103 (
OUTPUT FREQ
)
1401
RELAY OUTPUT
1 7 (
STARTED
) 4101
GAIN
1.0
1601
RUN ENABLE
2 (
DI
2) 4102
INTEGRATION TIME
60.0 s
1609
START ENABLE
2 5 (
DI
5)
1 SCR
2 AI1
3 AGND
4 10V
5 AI2
6 AGND
7 AO1
8 AO2
9 AGND
10 24V
11 GND
12 DCOM1
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
Start/Stop: Activate to start drive
Run permissive: Deactivate to stop drive (P 1601)
Constant (Preset) speed 1 (P 1202
1
)
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:
Ready =>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
Common for DI return signals.
Digital input common for all
Signal cable shield (screen)
Analog input circuit common
(Fault => 25 connected to 26)
J1
AI1: 0(2)
…
10 V
AI2: 0(4)
…
20 mA
ON
ON
Jumper Settings
+