Service Manual
R&M Materials Handling, Inc. 
4501 Gateway Boulevard 
Springfield, Ohio 45502 
P.: (937) 328-5100 
FAX: (937) 325
-
5319
20/53 
R&M Materials Handling, I
nc. reserves the right to alter or amend the above information without notice.
5  PARAMETERS 
5.1  Switch settings 
Settings of the switch model frequency converter are selected with 26 dip switches, which are located at the top of 
the frequency converter. The switches are divided into groups of 2 or 3 switches. Each switch-group is labelled with 
positions S1 through S10. 
An individual switch is given a number. For example, S1-1 denotes the first switch of switch group S1. The state of 
each switch is either 0 (Off) or 1 (On) as shown in the image below. The switch interface is designed so that the 
switches need to be altered from 0 as little as possible. 
The switch group S9 shall be set first, because the functionality of the switch groups S1 and S2 depend on the 
settings of the group S9. 
The switch groups are: 
S1  Maximum driving frequency 
S2  Minimum driving frequency 
S3  Acceleration and deceleration ramp times 
S4  Control method and slowdown mode 
S5  Limit operations 
S6  Voltage at low frequencies (U/f curve) 
S7  Current limit 
S8  Start and stop current 
S9  Motor nominal frequency 
S10  Terminal DI6 operation 
Note: Changes in the switch settings come into effect only after powering down and restarting the frequency converter. 
CAUTION 
The parameters set by the manufacturer shall not be changed. Changing the 
parameters can lead to unexpected functioning of the equipment. 










