Enerpro Document No: OP-0106, Rev. B
Page 12 of 14
ECO #19-11089; Release Date: 08/02/2019
15.0
General Specifications
Table 1. Specifications.
Maximum Ratings
AC mains voltage
480 Vac
Pulse transformer hipot
3500 Vac (60 seconds)
Operating temperature range
-5 to 85 C
Board ac supply voltage
28 Vac (24 Vac nominal)
12 V regulator output current
20 mA (30 Vdc supply)
5 V reference output current
5 mA (30 Vdc supply)
Auxiliary control power output from 24 Vac/30 Vdc
2 W
Delay angle range
10° ≤ α ≤ 170°
Electrical Characteristics
Delay angle command signal, SIG HI
Voltage: 0-5
Current: 4-20 mA
Or per customer specification
Control signal isolation from ground
Galvanic isolation provided by pulse
transformers and control power transformers
Gate delay steady-state transfer function
Delay angle decreases as SIG HI increases
Gate delay dynamic transfer function bandwidth
-3 dB at 67 Hz, phase shift -45° at 57 Hz
Gate drive phase balance
±1° (max)
Delay angle variance
Δ(α)/Δ(f) = 1.5°/Hz
50/60 Hz compensation via J3 selection
Lock acquisition time
30 ms (typ)
Soft-start/stop time (independently configurable)
0.05 – 20.0 s (typical)
Low SIG HI inhibit
Firing inhibited when SIG HI < 0.48 Vdc.
Remove D6 to defeat this feature
Power-on inhibit
Automatic
Instant/soft inhibit/enable inputs
Dry contact
Gate pulse burst frequency
256 times line frequency
Initial gate pulse open circuit voltage
15 V (30 Vdc supply)
Sustaining gate pulse open circuit voltage
7.0 V (30 Vdc supply)
Peak gate drive short circuit current
1.5 A (30 Vdc supply, 1.0 Ω gate load)
Sustaining gate drive short circuit current
0.5 A (30 Vdc supply, 1.0 Ω gate load)
Short-circuit gate drive current rise time
1.0 A/μs (30 Vdc supply, 1.0 Ω gate load)
Board dimensions
191 x 152 x 35 mm (L x W x D)
Minimum creepage distance to ac mains
13 mm
Conformal coating
per MIL-1-46058, Type UR