West Control Solutions 8700+ - Manual (Page 170)

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- DIN Controllers & Indicators - Product Manual
59305, Issue 7
– March 2014 Specifications Page 165
Triac: Operating Voltage Range: 20 to 280Vrms @47 to 63Hz. (140V
max when directly driving motorised
valves).
Current Rating: 0.01 to 1A (full cycle rms on-state @
25

C); derates linearly above 40

C to
0.5A @ 80

C.
Max. Non-repetitive Surge
Current (16.6ms): 25A peak.
Min. OFF-State dv/dt @ Rated
Voltage: 500V/

s.
Max. OFF-State leakage @
Rated Voltage: 1mA rms.
Max. ON-State Voltage Drop @
Rated Current: 1.5V peak.
Repetitive Peak OFF-state
Voltage, Vdrm: 600V minimum.
Isolation: Reinforced safety isolation from inputs
and other outputs.
Linear DC: Resolution: Eight bits in 250mS
(10 bits in 1 second typical, >10 bits in
>1 second typical).
Update Rate: Every control algorithm execution.
Ranges: 0 to 10V
0 to 5V
2 to 10V 0 to 20mA
4 to 20mA
(default)
Load Impedance: 0 to 20mA & 4 to 20mA:
500
Ω maximum.
0 to 5V, 0 to 10V & 2 to 10V:
500Ω minimum.
Short circuit protected.
Accuracy: 
0.25% (mA @ 250 Ω, V @ 2kΩ).
Degrades linearly to

0.5% for
increasing burden (to specification
limits).
When used as control output: For 4 to 20mA and 2 to 10V a 2%
over/underdrive is applied (3.68 to
20.32mA and 1.84 to 10.16V).

Isolation: Reinforced safety isolation from inputs
and other outputs.
Use as 0 to 10VDC transmitter
power supply*
Indicators only. Adjustable, 0.0 to 10.0V (regulated)
output into 500

minimum.
Transmitter Power
Supply:
* see Linear output
spec for 0-10V PSU
Power Rating 19 to 28VDC (24V nominal) into 910
Ω
minimum resistance.
Isolation: Reinforced safety isolation from inputs
and other outputs.