COM90 Datasheet, PDF (8/10 Pages) ASM GmbH – Doppel-Grenzwertschalter

Input
Current: DC-currents up to 20 mA, input impedance
ca. 100 Ohm. Overvoltage protection up to 30 V (self
resetting PTC-fuse). Surge/burst protection up to 3
kV.
Voltage: Range 1: 0-400 mV, input impedance ca.
100 MOhm; range 2: 0-10 V, input impedance 250
kOhm. Upon request up to 60 VDC, also negative
voltages. Overvoltage protection up to 30 V (self
resetting PTC-fuse). Surge/burst protection up to 3
kV.
Supply
All modules are suited for unregulated, noisy
industrial power supplies; nominal value is 24 VDC
(min. 20V, max. 30V). Other supply voltages on
request. Option: isolated power supply.
Operating modes/Settings
• Input: 0-400 mV, 0-10 V, 0-20 mA: DIL-Switch
• Relay inversion switching status: DIL-Switch
• Hysteresis (0.1-2 %): trimming potentiometer
• Time delay (0.05 - 1 sec., only for relay 1):
trimming potentiometer (option)
Relays:
Relays with gold plated , switching uV/uA as well as
2A/250VAC. Test voltage: 1000 V
Operating Modes
• One or two independent limiting values
(thresholds, relays 1 and 2)
• Window comparator (only relay 1)
• Two-position controller (only relay 1)
The operating mode is selected by DIL-switches.
Options
• DC-DC-converter for power supply (0.7 or 3 kV
test voltage)
• Second relay (only for „high“ limiting value)
• Time delays (only for relay 1). Adustable input
filter.
• Open input detection, current interruption (4-20
mA) detection. Such a condition will switch the
relays off (safe status, independent of operating
condition).
ASM GmbH
Tel.: [phone]
3
Fax: [phone]
www.asm-sensor.de
DAB-COM90-E-05