Bedford B550-2002 - External Reset; Multi-Step Speed Command

5-16
05 External Reset:
Parameter value 5 programs Multi-Function Input Terminals: M1 (Pr.38), M2 (Pr.39), M3
(Pr.40), M4 (Pr.41) or M5 (Pr.42) to be an External Reset.
GND
RESET
setting by 5
Mx "Close": Operation avalilable
Note: the External Reset has the same function as the Reset key on the Digital keypad. It
will reset the drive after a fault.
06, 07, 08 Multi-Step Speed Command:
Parameter values 06, 07,and 08 program any three of the following Multi-Function Input
Terminals: M1 (Pr.38), M2 (Pr.39), M3 (Pr.40), M4 (Pr.41) or M5 (Pr.42) for Multi-step
Speed Command function.
GND
d6 Multi-step
1
d7 Multi-step 2
d8 Multi-step 3
Mx "Close": Operation available
Mx "Close": Operation available
Mx "Close": Operation available
Note: These three inputs select up to seven multi-step speeds defined by Pr.17 to Pr.23 as
shown in the following diagram. Pr.78 to Pr.87 can also control output speed by
programming the AC drive’s internal PLC function.
Freq.
Step 1
Step 2
Step 3
Step 4
Step 5
Step 6
Step 7
Time
OFF
ON
ON
ON ON
ON ON
ON ON
ON
ON ON ON
ON
Operation
Command
Mx3-GND
Mx2-GND
Mx1-GND
Pr.17
Pr.18
Pr.19
Pr.20
Pr.21
Pr.22
Pr.23
Master Freq.
B550 Series sensorless vector frequency drive