Glentek Omega SMC9930, Installation & Operation Manual

Page: 62 / 79

Glentek Inc. 208 Standard Street, El Segundo, California 90245, U.S.A. (310) 322-3026 62
Omega Series Digital PWM Amplifier Manual
2. Suppress each switched inductive device near the servo amplifier. Switch inductive devices
include solenoids, relay coils, starter coils and AC motors (such as motor driven mechanical
timers).
3. DC coils should be suppressed with a “free-wheeling” diode connected across the coil.
4. AC coils should be suppressed with RC filters (a 200 Ohm 1/2 Watt resistor in series with a
0.5
uF, 600 Volt capacitor is common).
Following these guidelines can minimize noise problems. However, equipment EMC performance
must meet regulatory requirements in various parts of the world, specifically the European Union. Ulti-
mately, it is the responsibility of the machine builder to ensure that the machine meets the appropriate
requirements as installed.
RECOMMENDATIONS FOR GLENTEK AMPLIFIERS
All amplifiers installed in a NEMA 12 enclosures or equivalent with wiring in metal conduit or enclosed
metal wire trough (see Shielding and segregation).
Use Glentek shielded feedback and motor cables.
An AC line filter properly installed in a NEMA 12 enclosure or equivalent (see Filtering).
AC line filters for single-phase applications
1A-15A input current, 120-250VAC use: Corcom 15ET1 or equivalent.
15A-25A input current, 120-250VAC use: Corcom 25FC10 or equivalent.
25A-36A input current, 120-250VAC use: Corcom 36FC10 or equivalent.
AC line filters for 3-phase applications
1A-25A input current, 120-250VAC use: Corcom 25FCD10 or equivalent.
25A-36A input current, 120-250VAC use: Corcom 36FCD10 or equivalent.
36A-50A input current, 120-250VAC use: Corcom 50FCD10 or equivalent.
50A-80A input current, 120-250VAC use: Corcom 80FCD10 or equivalent.