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Maximum cable length
400 m
Encoder Output
Number of supply voltages
3
Terminal block
X55 and X56
Terminal number
1,2,3,4
24 V, max load
250 mA
1)
8 V, max load
250 mA
1) 2)
5 V, max load
400 mA
1)
Absolute encoder type
SSI
Maximum cable length
150 m
1)
1) This is maximum load when only one supply voltage is used; when 2 or 3 supply voltages are
used simultaneously the load must be reduced accordingly. The following must be observed:
l load5V
≤
6W and load5V
≤
2W.
2) 8 V is only available at terminal block X55.
2.3. Description of the Electrical and Fieldbus Interface
Terminal
Designation
Description
12
24 V DC
24V power supply for switches etc. maximum load
200 mA
13
24 V DC
24V power supply for switches etc. maximum load
200 mA
18
Reference index Bit 0
(LSB)
Reference position index number bit 0 (least signifi-
cant bit). Not used in fieldbus mode.
19
Reference index Bit 1
Reference position index number bit 1. Not used in
fieldbus mode.
20
GND
Ground for 24V is normally bridged with Terminal 39,
but can be set to “OFF” by means of Switch SW 4 on
the control card.
27
Reset / ENABLE (error
clear)
Errors are cleared on the rising edge (must be “0”
min. 1 ms. to guarantee edge detection). Not used in
fieldbus mode. To enable operation, this input must
be maintained at “1” in either digital control mode or
fieldbus control mode.
29
Reference index Bit 4
(MSB)
Reference position index number bit 4 (most signifi-
cant bit). Not used in fieldbus mode. Not used in FC
301.
32
Reference index Bit 3
Reference position index number bit 3. Not used in
fieldbus mode.
33
Reference index Bit 2
Reference position index number bit 2. Not used in
fieldbus mode.
MCO351 Positioning Controller
2. Introduction
MG.33.R1.02 - VLT
®
is a registered Danfoss trademark
13
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