Application macros 93
Dual setpoint with PID
This macro configures for dual setpoint PID applications, where activating digital input
3 (DI3) changes the process PID controller’s setpoint to another value. When using
direct speed reference in AUTO mode or process PID, see section General
considerations on page 80. Set process PID setpoints (internal to the drive) using
parameters 4011 (
SET1) and 4111 (SET2).
Parameters changed relative to HVAC default
Parameter Value
Parameter Value
9902 APPLIC MACRO 11 (DUAL SETPNT) 4010 SETPOINT SEL 19 (INTERNAL)
1201 CONST SPEED SEL 0 (NOT SEL)
4011 INTERNAL SETPNT 50.0%
1401 RELAY OUTPUT 1 7 (STARTED)
4027 PID 1 PARAM SET 3 (DI3)
1601 RUN ENABLE 2 (DI2)
4110 SETPOINT SEL 19 (INTERNAL)
1609 START ENABLE 2 5 (DI5)
4111 INTERNAL SETPNT 100.0%
1SCR
2AI1
3AGND
410V
5AI2
6AGND
7AO1
8AGND
924V
10 GND
11 DCOM
12 DI1
13 DI2
14 DI3
15 DI4
16 DI5
17 RO1C
18 RO1A
19 RO1B
20 DOSRC
21 DOOUT
22 DOGND
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)
Setpoint Selection: Activate to select Set 2
Safety interlock1: Deactivate to stop drive (P 1608)
Safety interlock2: Deactivate to stop drive (P 1609)
Relay output 1 (P 1401)
Default operation: Started =>17 connected to 19
Digital output, max. 100 mA (P 1805)
No fault [Fault(-1)] =>20 connected to 22
X1A
Analog input circuit common
PID feedback: 0(2)…10 V or 0(4)…20 mA
Analog output circuit common
Auxiliary voltage output +24 VDC
Auxiliary voltage output common
Digital input common for all
Signal cable shield (screen)
Analog input circuit common
+
mA
+
X1B