TELEDYNE OLDHAM SIMTRONICS MX32 - Page 71

MX32v2
ANALOG AND DIGITAL CONTROLLER
USER MANUAL
NP32V2EN
Revision D.0
65
Measurement Lines
Digital lines
■ 2 maximum
■ RS485 Modbus, 9600 Bauds
■ 4 wire serial cable, 2 shielded twisted pairs (1 for the line and
1 for communication)
Analog lines
■ 2 maximum
■ Input range 4 to 20 mA
■ Load resistance 120 Ohms
■ Analog transmitter cable 2 or 3 shielded wires
Wheatstone lines
■
2 maximum
■ 3 shielded wire cable
Nominal voltage 22 to 28 V on external DC
Maximum load
■ 1.5A per line with external 24Vdc power supply
■ 1A total with internal AC power according to T
amb
below
Maximum
power supply
output power (P
out-max
)
depending on ambient
temperature T
amb
(AC power supply only)
P
out-max
requires derating (in order to maintain a constant internal
temperature) with 0.7W/˚C above T
amb
= 30˚C when powered by
internal AC/DC power supply as following:
■ for T
amb
≤ +30˚C, P
out-max
= 32W
(1A external load for both lines)
■ for +30˚C ≤ T
amb
≤ +40˚C, P
out-max
= 32W to 25W
(max. 0.71A external load for both lines at +40°C)
■ for +40˚C ≤ T
amb
≤ +50˚C, P
out-max
= 25W to 18W
(max. 0.42A external load for both lines at +50°C)
Cable glands
■
5xM16 cable glands for cables from 4 to 8 mm²
■ 2xM20 cable glands for cables from 6 to 12 mm²
Insulation
1500Vac (100-240Vac/24Vdc Power Supply)
Terminals Screw terminals. Can accept 2.5 mm² (14AWG) wire