WIKA CF1H - Manual (Page 69)

Operating Instructions Temperature Indicating Controller CF1H
V 1.2
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01/2007 - 69 -
Setting value memory number external selection [SM7]
Selects the setting value memory number from 7 files (under mentioned data as one file) by external
terminal. (Main setting value, PID values, Cooling output proportional band setting value, Alarm 1 and 2
setting values, Overlap band or Dead band, Main output high limit, Main output low limit, Cooling output
high limit and Cooling output low limit)
Memory number 1 … 7 (7 files)
Data
12
External setting [EA or EV ]
Main setting value can be set by external analog signal.
Setting signal : Current
0 … 20 mA DC [EA0]
4 … 20 mA DC [EA4]
Input impedance 50 Ω (non-isolated with input)
: Voltage
0 … 1 V DC [EV0]
1 … 5 V DC [EV1]
Allowable input voltage 5 V or less
Input impedance, 100 k Ω (non-isolated with input)
Setting signal sampling period: 0.5 seconds
(If this function is applied, the input sampling period also will change to 0.5 seconds.)
Heater burnout alarm output [W12, W15, W32 or W35] (Including sensor burnout alarm)
Watches the heater current with CT (current transformer), and detects the
burnout. (This option cannot be applied to the type current output.)
Rating : 20 A [Option W12, W32] or
50 A [Option W15, W35]
Setting range : In the case of 20 A, 0.0 … 20.0 A (however, the indication is 0 … 50.0)
In the case of 50A, 0.0 … 50.0 A
(Setting the value to 0.0 disables the function.)
Setting accuracy : ±5 %
Action point
: Setting value
Action : ON/OFF action
Output : Relay contact 1a (No self-holding)
Control capacity, 250 V AC, 3 A (resistive load)
250 V AC, 1 A (inductive load, cosø=0.4)
Insulated power output [P24]
Can be used as a small capacity power source for each sensor and converter.
The insulated power output [P24] is not available with a combination of
Alarm 2 output (A2), Heating/Cooling control output [D 2] or Loop break
alarm output (LA).
Output 24 ±3 V DC (when the load current is 30 mA)
Ripple voltage, within 200 mV (when the load current is 30 mA)
Screw type mounting bracket [FS]
Mounting panel thickness is 1 … 15 mm.