B-TEK Scales T405S, Service Manual

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T405S Indicator Service Manual 107
8.13 AC output, 4 relays (20-240VAC) card
8.13 AC output, 4 relays (20-240VAC) card
This card allows you control up to four 20-240VAC output solid state relays. Each
output is rated for 1 Amp with internal fuses.
Figure 8.14 Wiring examples
The use of Ztools is required to configure the AC Output option card.
TB1
Pin Function
1 SP1-
2 SP1+
3 SP2-
4 SP2+
5 SP3-
6 SP3+
7 SP4-
8 SP4+
S1 switch settings
must all be OFF to
operate.
Specifications
Output Channels (all positions) Switched AC
Maximum output voltage 240V rms
Minimum output voltage 20V rms
Maximum output current 1A rms
Minium output current 5mA rms
Maximum off-state voltage 500V peak
Maximum off-state leakage current 1mA rms
Maximum power dissipation 1.6 W
Load power factor for guaranteed turn-on 0.25
If the device to be controlled does not fall within
these standards it is suggested that you use a
mechanical relay for absolute circuit open and/or
closure with appropriately rated contacts for the
loading characteristics of the device.
CAUTION: For safety reasons the AC output option card can only be used in the
primary earthed stainless steel enclosure.
SCR Switch
AWT25-501901 PCBA
(K)
TB1
TB1
SP+
SP-
Hot
Neutral
Ground
AC Load
20-240 VAC
1 Amp Max
I = 1 Amp
M ax
AC Plug
SCR Switch
AWT25-501901 PCBA
(K)
TB1
TB1
SP+
SP-
Hot
Neutral
Ground
AC Load
20-240 VAC
1 Amp Max
I = 1 Amp
M ax
AC Plug
OR