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174 • Appendices DMC-2X00
• Screw-type terminals for easy connection to motors, encoders, and switches
• Steel mounting plate with ¼” keyholes
Specifications
Minimum motor inductance: 1 mH
PWM frequency: 30 kHz
Ambient operating temperature: 0
o
to 70
o
C
Dimensions:
Weight:
Mounting: Keyholes – ¼”
∅
Gain: 1 amp/V
Opto-Isolated Outputs for ICM-2900 / ICM-1900 / AMP-
19x0
The ICM/AMP 1900 and ICM-2900 modules from Galil have an option for opto-isolated outputs.
Standard Opto-Isolation and High Current Opto-isolation:
The Opto-isolation option on the ICM-1900 has 2 forms: -opto (standard) and -optohc (high current).
The standard version provides outputs with 4ma drive current / output with approximately 2 usec
response time. The high current version provides 25ma drive current / output with approximately 400
usec response time.
Figure A-4
The ISO OUT POWER (OUT POWER ON ICM-2900) and ISO POWER GND (OUT GND ON ICM-
2900) signals should be connected to an isolated power supply. This power supply should be used
only to power the outputs in order to obtain isolation from the controller. The signal "OUT[x]" is one
of the isolated digital outputs where X stands for the digital output terminals.
The default configuration is for active high outputs. If active low outputs are desired, reverse RP3 in
it's socket. This will tie RP3 to GND instead of VCC, inverting the sense of the outputs.
NOTE: If power is applied to the outputs with an isolated power supply but power is not applied to the
controller, the outputs will float high (unable to sink current). This may present a problem when using
ISO OUT POWER (ICM-1900,PIN 19)
OUT POWER (ICM-2900)
ISO POWER GND (ICM-1900,PIN 35)
OUT GND (ICM-2900)
OUT[x] (66 - 73)
ICM-1900 / ICM-2900
CONNECTIONS
RP4 on ICM-1900 =10K OHMS
FROM
CONTROLLER
+5V
OUT[x] TTL
RP2 on ICM-2900
RP3