Siemens POWER CONTROL Series Operation Manual page 10

Introduction
Control signal input
impedance
Control signal
isolation
Power output
Power SCRs
protection
Output voltage
change vs. Ambient
temperature change
Phase-firing time
base
Controls (pots)
Fan cooling power
Ambient temperature
range
Weight
1 - Must be specified with order
Ω
2 - With 250 input impedance
3 - Supplied by customer
4 - If a temperature/process controller will be used, provide its output specifications when the order is placed
(e.g., 4-20 mA, 0-10 V
1-4
Item
Control methods:
Non isolated input (galvanic isolation); 250 Ω, 0.5 watt
1
standard
From SCRs:
From AC power input lines: 2,500 V
From chassis:
Voltage regulation: ±0.5% per ±10% line voltage change
Linearity vs. Control signal input: ±2% (galvanic isolation)
Current surge:
Transient voltage
spikes (dV/dt):
0.18% per °F
0.10% per °C
0° to 180° conduction per SCR
3 (bias, gain and current limit) multi-turn, screwdriver-
adjustable pots
90-225 A units:
350-500 A units:
650-1200 A units: 4.2 A, 504 VA
Operation:
Storage:
Current Rating
25 through 225 A units
350 through 500 A units
650 A units
800 through 1,200 A units
, 2-10 V , etc.).
DC DC
3PCI SCR Power Controller Series Manual
Description
0-1 mA (min) 0-3 mA (max)
0-3 mA (min) 0-30 mA (max)
1. Potentiometer
2. Dry contact closure
3. Temperature or process controller
Subcycle I
Metal oxide varistor (MOV) and RC
snubber across each SCR pair; all SCRs
have PIV rating of 1,400 V.
50 Hz Unit
0.42 A, 50 VA
0.63 A, 76 VA
32°F to 122°F
14°F to 158°F
s
2
3
(5 kΩ, 0.5 watt)
3
2,500 V
DC
2,200 V
DC AC
500 V 1,000 V
DC AC
2
T semiconductor fuse
60 Hz Unit
0.38 A, 46 VA
0.57 A, 69 VA
3.6 A, 432 VA
(0°C to 50°C)
(-10°C to 70°C)
lbs Kg
40 18.2
60 27.3
126 57.3
231 105.0
Version 1.2 (19000325)
4