User Manual

8/32
Siemens Building Technologies SED2 Advanced Operator Panel AOP CM1B5192en
HVAC Products AOP Start-Up & Initialization 19.01.2004
3 AOP Start-Up & Initialization
3.1 Important Notes
Caution:
 You can mount or remove the AOP while power is applied to the SED2 VSD.
 You must set Command Source P0700[1]=4 (USS on BOP link or AOP) before the AOP can
start or stop an attached SED2 VSD.
 On setting the AOP as the command source, you must set USS Telegram Off Time for Serial
Interface BOP Link P2014[1]=5000 (5 seconds) to prevent unexpected drive operation. In this
mode, removal of the AOP from the SED2 VSD causes a timeout to occur in 5 seconds.
 On setting the AOP as the command source, the drive control buttons (
, , , and )
can control the drive at all times.
 When the AOP is replaced by the BOP, you have to set the command source parameter
P0700[1]=1 (BOP)
Notes:
Parameter editing (bit field indicator) — When editing a bit-field type parameter, the AOP in-
crements the display value as a binary number.
Inhibit — When the AOP displays ‘Inhibit’, the SED2 VSD is in an inhibit mode of operation as
reported by the USS message. This inhibit status clears when the SED2 VSD receives a valid
start/stop command from the AOP. On first power-up, send an OFF1 command to the SED2
before trying to run the VSD; this must also be done when the VSD is under Automatic Timer
Control.
3.2 Power-on and Initialization
1. On initial power-up, the AOP performs internal self tests and displays a welcome screen.
2. After establishing initial AOP-to-SED2 VSD communications, the Start Help screen(s) appear.
If the current AOP display language is acceptable, continue with the Start Help section.
If you need to change the current AOP display language, continue with the Language Selection section.