Beijer Electronics AN-BEI-E2-038 - Manual (Page 9)

APPLICATION NOTE AN‐BEI‐E2‐038 Date: 15/02/12
AN‐BEI‐E2‐038 Modbus RTU Control and Register Mapping 9
Analog and Digital Input Configurations when in MODBUS control mode (P12 = 3 or 4)
By changing the value in P‐15 adjusts the functionality of the control terminals as below:
P‐15 Digital input 1 (T2) Digital input 2 (T3) Digital input 3 (T4) Analog input (T6) Comments
0..2,
4..5,
8..12
Open: Stop (disable)
Closed: Run (enable)
No effect No effect No effect
Run and stop commands
given via the RS485 link and
Digital input 1 must be
closed for the drive to run.
3 1)
Open: Stop (disable)
Closed: Run (enable) Open : Master speed ref
Closed : Preset speed 1 External trip input :
Open: Trip, Closed: Run
No effect
Connect external thermistor
type PT100 or similar to
digital input 3
6 1)
Open: Stop (disable)
Closed: Run (enable) Open : Master speed ref
Closed : Analog input External trip input :
Open: Trip, Closed: Run
Analog input reference
Master Speed Ref ‐ start and
stop controlled via RS485.
Keypad Speed Ref ‐ drive
auto runs if digital input 1
closed, depending on P‐31
setting
7 1)
Open: Stop (disable)
Closed: Run (enable) Open : Master speed ref
Closed : keypad speed ref External trip input :
Open: Trip, Closed: Run
No effect
Example Wiring
AUTO – MODBUS Speed
HAND – Preset Speed 1 AUTO – MODBUS Speed
HAND ‐ Analog Speed ref
(potentiometer) AUTO – MODBUS Speed
HAND – Keypad Speed ref (UP & DOWN
keys on drive)