Terminal number pulse 29, 33
Maximum frequency at terminal 29, 33 110 kHZ (push-pull driven)
Maximum frequency at terminal 29, 33 5 kHZ (open collector)
Minimum frequency at terminal 29, 33 4 Hz
Voltage level See Digital Inputs in the General Technical Data section.
Maximum voltage on input 28 V DC
Input resistance, Ri Approximately 4kΩ
Pulse input accuracy (0.1–1 kHZ) Maximum error: 0.1% of full scale
Analog output
Number of programmable analog outputs 1
Terminal number 42
Current range at analog output 0/4–20 mA
Maximum resistor load to common at analog output 500 Ω
Accuracy on analog output Maximum error: 0.8% of full scale
Resolution on analog output 8 bit
The analog output is galvanically isolated from the supply voltage (PELV) and other high-
voltage terminals.
Control card, RS-485 serial communication
Terminal number 68 (P, TX+, RX+), 69 (N, TX-, RX-)
Terminal number 61 Common for terminals 68 and 69
The RS-485 serial communication circuit is functionally seated from other central circuits
and galvanically isolated from the supply voltage (PELV).
Digital output
Programmable digital/pulse outputs 2
Terminal number 27, 29
1)
Voltage level at digital/frequency output 0–24 V
Maximum output current (sink or source) 40 mA
Maximum load at frequency output 1 kΩ
Maximum capacitive load at frequency output 10 nF
Minimum output frequency at frequency output 0 Hz
Maximum output frequency at frequency output 32 kHZ
Accuracy of frequency output Maximum error: 0.1% of full scale
Resolution of frequency outputs 12 bit
1)
Terminal 27 and 29 can also be programmed as input.
The digital output is galvanically isolated from the supply voltage (PELV) and other high-
voltage terminals.
Control card, 24 V DC output
Terminal number 12, 13
Maximum load 200 mA
The 24 V DC supply is galvanically isolated from the supply voltage (PELV), but has the
same potential as the analog and digital inputs and outputs.
9 Technical Specification
156 Aquavar
®
Intelligent Pump Controller - 150 HP to 600 HP INSTRUCTION MANUAL
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