Siemens Milltronics BW500/L - Page 20

Specifications
BW500 and BW500/L
18 Operating Instructions, 12/2016, A5E33482052-AD
Inputs
Load cell
0 ... 45 mV DC per load cell
Speed sensor
Pulse train 0 V low, 5 V high (TTL setting) or
10 ... 24 V high (HTL setting), 1 ... 3000 Hz or
open collector NPN switch or
relay dry contact
Auto zero
Dry contact from external device
mA
See optional mA I/O board
1)
Auxiliary
5 discrete inputs for external contacts (Low = 0 V, High =
10 ... 24 V), each programmable for either display scroll-
ing, totalizer 1 reset, zero, span, multispan, print, batch
reset, or PID function.
1)
Not available with BW500/L.
Outputs
mA
• 1 programmable 0/4 ... 20 mA, for rate, load, and
speed output
• Optically isolated
• 0.1 % of 20 mA resolution
• 750 Ω load max
• See optional mA I/O board
1)
Load cell
10 V DC compensated excitation for strain gauge type, 6
cells max, BW500 has 4 independent inputs, BW500/L
has 2.
The maximum load, in either case, must not exceed
150 mA.
Speed sensor
12 V DC, 150 mA max. excitation
Remote totalizer 1
• Contact closure 10 ... 300 ms duration
• Solid state relay contact rated 30 V DC, 100 mA max.
• Max. contact on-resistance = 36 Ω
• Max. off-state leakage = 1 uA
Remote totalizer 2
• Contact closure 10 ... 300 ms duration
• Solid state relay contact rated 240 V AC/DC,
100 mA max.
• Max. contact on-resistance = 36 Ω
• Max. off-state leakage = 1 uA
Relay output
• BW500
5 alarm/control relays, 1 form 'A' SPST relay contact per
relay, max. 5 A at 30 V DC / 250 V AC non-inductive; min.
10 mA at 5 V DC
• BW500/L
2 alarm relays
1)
Not available with BW500/L.