www.baldormotion.com
4-10 Input / Output MN1901
interrupt is latched in software. It is necessary to clear the latch before subsequent interrupts
can be detected. See the Mint help file. Both inputs are fitted with Schmitt trigger devices.
Note: The fast inputs are particularly sensitive to noise, so inputs must use shielded
twisted pair cable. Do not connect mechanical switches, relay contacts or other
sources liable to signal ‘bounce’ directly to the fast inputs. This could cause
unwanted multiple triggering.
Active high: DINx=+24VDC (±20%)
CREF=0V
4k7
33pF
HCPL2231
to CPU
Vcc
MintDrive
II
Active low: DINx=0V
CREF=+24VDC (±20%)
1k
10k
DGND
DIN4
CREF
14
7
‘X3’
Figure 32 - Pulse and direction / fast digital input circuit
Incremental encoder MintDrive
II
DIN4 (Pulse)
Connect shi elds
at one end only
‘X3’
14
Twisted pairs
DIN5 (Dir)
15
A+
A-
B+
B-
24V
GND GND1
‘X1’
2 24V
CREF7
Drive
supply
GND
Drive
supply
24V
Figure 33 - Pulse and direction inputs - typical connection from an incremental encoder:
MintDrive
II
with external 24V supply option, ‘active high’ inputs
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com
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