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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.
NextMove e100
NextMove e100
-
+
Figure 6: Analog output - typical connection to an ABB MicroFlex
MN1941WEN
Demand
±100%
Figure 5: Analog output - Demand0 shown
'X13'
Demand0
1
AGND
2
3
Shield
-
TL084
+
'X3'
Connect overall shield
at one end only
+15 V
'X13'
1
Demand0
-15 V
2
AGND
MicroFlex / servo amplifier
AIN0+
13
Servo
amplifier
±10 VDC
demand
Input
12
AIN0-
Input / Output 4-5
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