Single-turn absolute encoder
The single-turn absolute encoder is used for absolute indirect position
detection within 1 motor revolution. With this operation mode the absolute
axis position will get lost after power shut down.
Multi-turn absolute encoder
The multi-turn absolute encoder is used for absolute indirect position
detection within -16384 to 16383 motor revolutions for encoder type M0,
within -2048 to 2047 motor revolutions for encoder type M5, and within -256
to 255 motor revolutions for encoder type M6. The multi-turn absolute
encoder replaces a separate absolute value encoder at the motor.
●
The absolute axis position of this encoder type remains correct after
power shut down, because of the battery back-up. When the encoder is
fully powered by the battery the position is guaranteed only if the
encoder did not exceed a velocity of 100 revolutions per minute. If you
disconnect the battery box from the encoder, you will lose the absolute
axis position.
●
The Rexroth MSM encoder counts downward (position increases) when
the shaft of the encoder is rotated clockwise. This behavior is opposite
to most other encoders.
●
If the Rexroth MSM absolute encoder is used without a battery, the
NYCe 4000 software will report the error "Encoder Battery Warning" or
"MSM system down" depending on the selected error handler. The
encoder can be powered using an external battery or the NYCe 4000
encoder power supply. It depends on how long the external battery is
disconnected and the severity level of the selected error handler
whether the error message "Encoder Battery Warning" or "MSM System
Down" is generated. Depending on the severity level of the error handler
you can still reset the error and use this encoder.
Battery box for multi-turn
The use of the multi-turn option requires an external battery box. The external
battery box can be connected to the battery power supply pins of the
encoder.
The following accessories are available for the encoder type M0.
Component name
Order number
cable length
Battery box
SUP-E01-MSM-BATTERYBOX
R911324240
-
Spare battery
SUP-E03-DKC*CS-BATTRY
R911295648
Tab. 13-16:
Accessories for encoder type M0
The following accessories are available for the encoder type M5.
Component name
Order number
Cable length
Battery box
SUP-E02-MSM-BATTERYBOX-L010
R911346063
1000 mm
SUP-E02-MSM-BATTERYBOX-L030
R911346065
3000 mm
SUP-E02-MSM-BATTERYBOX-NNNN
R911346084
250 mm
Spare battery
SUP-E02-MSM-BATTERY
R911369925
Tab. 13-17:
Accessories for encoder type M5
Single-turn signals
176/233
Encoders
NYCe 4000 Multi-axis motion control system Hardware Sys‐
tem Manual
Bosch Rexroth AG R911337671_Edition 18
