Siemens 3PCI Series, Operation Manual

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