MN1941WEN Input / Output 4-5
4.2.2 Analog outputs
The four analog outputs are available on connector X13, as shown in section 4.1.1.
Four independent bipolar analog outputs.
Output range: ±10 V DC (±0.1%).
Resolution: 12-bit.
Output current: 2.5 mA maximum per output.
Update frequency: 1 kHz.
Mint and the Mint Motion Library use analog outputs Demand0 to Demand2 to control local
drive amplifiers. Demand outputs 0 to 2 are used by axes configured as servo (see section
5.4.3). All of the outputs may be used as general purpose analog outputs, provided they
have not been assigned to an axis - see the DAC keyword in the Mint help file.
The analog outputs may be used to drive loads of 4 kΩ or greater. Shielded twisted pair
cable should be used. The shield connection should be made at one end only.
Figure 5: Analog output - Demand0 shown
Figure 6: Analog output - typical connection to an ABB MicroFlex
-
+
TL084
1
2
+15 V
-15 V
‘X13’
NextMove e100
AGND
Demand0
Demand
±100%
1
2
13
12
3
-
+
‘X3’‘X13’
NextMove e100
AGND
Demand0
Shield
AIN0+
AIN0-
Connect overall shield
at one end only
Servo
amplifier
±10 VDC
demand
Input
MicroFlex / servo amplifier
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