Appendix A – ACS 502/504 Technical Data
A-2 ACS 502 Installation & Start-up Manual
Accuracy:
• Analog Control: ± 0.5%
• Digital Control: ± 0.01%
Reference Signal Update: < 20 mSec
Auxiliary Voltage
(for Controls)
24 VDC ± 10%, 200 mA
Digital Inputs
Six programmable digital inputs.
< 4.0 V is logical 0
> 18 V is logical 1
Updating of Start/Stop Signal: < 5 mSec
Updating of Other Signals: < 20 mSec
Analog Outputs
Two programmable analog outputs.
0 – 20 mA or 4 - 20 mA, R
L
less than or equal to 500 ohms, floating.
Digital Relay Outputs
Three programmable relay outputs, Form C contacts.
Maximum Switching Voltage: 300 VDC / 250 VAC
Maximum Switching Current/Power: 8 A @ 24 VDC, 0.4 A @ 250 VDC,
or 2000 VA @ 250 VAC
Maximum Continuous Current: 2 A rms
Environmental Limits
Ambient Operating Temperature:
• Constant Torque 32° to 113°F (0° to 45°C) NEMA 1
• Variable Torque 32° to 104°F (0° to 40°C) NEMA 1
Storage Temperature: - 40°F to + 158°F (-40°C to +70°C)
Relative Humidity: less than 95%, non-condensing
Continuous Vibration Level: less than 0.5 G
Altitude: 3300 ft (1000 m) above sea level, derate 1% for every 330 ft (100
m) above 3300 ft (1000 m)
Enclosures
NEMA 1, NEMA 12, CHASSIS
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