Chapter 7 _____________________________________________________________ Technical Data
VAISALA ________________________________________________________________________ 79
Table 15
Inputs and Outputs
Property
Description / Value
HMW92 and TMW92
Outputs
HMW92
2 x 4 ... 20 mA, loop powered
TMW92
1 x 4 ... 20 mA, loop powered
Loop resistance
0 ... 600 Ω
Supply voltage
20 ... 28
VDC at 500 Ω load
10 .... 28
VDC at 0 Ω load
Isolation between output channels 500 VDC
HMW93 and TMW93
Outputs
HMW93
2 x 0 ... 5V, 0 ... 10 V
TMW93
1 x 0 ... 5V, 0 ... 10 V
Load resistance
10 kΩ min.
Supply voltage
18 ... 35 VDC
24 VAC ±20 % 50/60 Hz
Max. current consumption
12 mA
max. with relay 25 mA
Relay
1 pc (SPST, max. 50 VDC/50 VAC,
500 mA)
3-wire installation max cable
resistance
2.5 Ω at 24V supply
(with 10 V output, relay not used)
HMW95
Supply voltage
18 ... 35 VDC
24 VAC ±20 % 50/60 Hz
Current consumption (with
termination)
Average
10 mA at 24 VDC
Maximum
30 mA at 24 VDC
Power consumption
< 0.3 W
Output type
RS-485 (galvanic isolation, 1.5 kV)
RS-485 end of line termination
Enable with jumper, 120 Ω
Supported protocols
Selectable by DIP switch
BACnet MS/TP
Operating mode
Selectable Master/Slave
Address range, master mode 0 ... 127
Address range, slave mode 128 ... 255
Modbus RTU
Address range
0 ... 247
Service port
RS-485 line
for temporary service use